8.0
pretty badTypical Repair Cost:
$552.00
Average Mileage:
86,723 miles
Total Complaints:
171 complaints
Most common solutions:
- not sure (54 reports)
- letting car sit for approx 30 minutes (33 reports)
- wait 10 min till securty light stops flashing, try again (12 reports)
- recall (11 reports)
- replaced body control module (10 reports)
- replace ignition switch (8 reports)
electrical problem
This problem may be covered under warranty. Ask your Chevrolet dealer.
Helpful Websites About 2002 Chevrolet Impala passlock problem, won't start and security light is on
2007Jan 14
Impala LS 3.8L
- Automatic transmission
- 85,000 miles
ALL THE HEAT & A/C COMES OUT OF THE FLOOR CANNOT ADJUST TO DEFROST. THE DAMN SECURITY LIGHT COMES ON AND TAKES 15-20 MINUTES TO START. HAD TO PAY THEM ASS HOLES AT GM SHOP $816.14 TO FIX THEIR PROBLEM..... HAD TO REPLACE IGNITION SWITCH,PASSLOCK SENSOR AND HARNESS & REPAIR VACCUM LINES TO ACTUATOR
2005Jun 01
Impala 3.4L V6
- Automatic transmission
- 38,000 miles
ONE OF MANY ELECTRICAL PROBLEMS WITH THIS DAMN CAR. THE PROBLEM STARTED JUST AFTER THE WARRANTY HAD EXPIRED.MY WIFE CALLED ME ONE DAY TO SAY SHE COULD NOT START THE CAR AFTER GETTING OFF WORK. SHE SAID CAR WOULD NOT START SHE CALLED ME THINKING BATTERY WAS DEAD BUT SAID DUMMY LIGHT SAYING SECURITY. AFTER ABOUT 20 MINS OF HER PLAYING WITH KEY IN THE IGNITION CAR FINALLY WOULD START UP AS IF NOTHING WAS WRONG. THIS WOULD CONTINUE TO HAPPEN ON A CONSISTENT BASIS OVER THE LAST 4 YRS. NEVER TOOK IT IN TO DEALER CUZ DONT FEEL LIKE DISHING OUT THE MONEY TO FIX THIS POS. ISSUE IS A LITTLE AGGRAVATING BUT ONE DAY IT BECAME A REAL PROBLEM WHEN I WAS AT THE PARK LAST SUMMER WHEN MY NIECE GOT HIT BY AN ERRANT 90MPH FOUL BALL STRAIGHT TO THE FACE AND I'M TRYING TO RUSH HER TO THE HOSPITAL AND MY WIFE IS TRYING TO START THE CAR AND WE COULDN'T GET IT TO START FOR ABOUT 10 MINUTES WHILE MY NEICE HAD BLOOD GUSHING OUT OF HER NOSE. FINALLY ABLE TO START CAR AND GET HER TO THE HOSPITAL. THANKS A LOT GM.
A D V E R T I S E M E N T S
2009Oct 01
Impala LX 3.4L V6
- Automatic transmission
- 105,633 miles
I own both a Malibu and Impala with the passlock system and Ive had to bypass them both. For those of you that are not too techy, simply have it fixed by removing the dash trim, screwing out the two screws that hold the ignition switch in place and pulling the ignition switch out so you can see the three wires going to the module..black yellow & white, do not disconnect the ignition wires. For everyone that has their vehicle starting randomly, play with it until you get it to start with the security light off. While the engine is running, simply cut the yellow wire. the security light will come on and it will stay on. Cut the vehicle off and it will start again without a hitch if its your passlock. The trick here is in Chevy/Gm programming, as long as the passkey fails while you are driving, the security system will light, but will be disabled and not lock you out. That is the reason why lots of people are seeing the security light, but the problem is the faulty connection keeps connecting and reconnecting while you're driving giving a false reading to the BCM. This will permanently disable the passlock, for as long as your vehicle system doesn't lose battery power. If you ever disconnect your battery for more than 10 minutes or you use a diagnostic machine to clear your DTC's you'll need to reconnect the yellow wire, start the vehicle and disconnect the yellow wire again. This method and placing a resistor across the yellow and black wires are both fail safe solutions to this problem. The only difference is that the resistor method isn't affected by power loss or diagnostics clearing. This method should work flawlessly with vehicles that start with the security light on as well, once the vehicle starts cut the yellow wire. I did this mod 1 1/2 years ago on both vehicles and neither has given me problem since...except my Malibu which I accidentally erased the passlock disable doing a diagnostics session and had to reconnect the yellow wire to start it and then disconnect..LOL. Hope this helps
2008Oct 02
Impala V6
- Automatic transmission
- 95,000 miles
My 2002 Chevy Impala won't start at times. It seems to happen more frequently in the cold months. Over the summer it only happened twice. Now that its in the mid to high 30's at night it has happened 4 times this week alone. When it does work my security light will sometimes come on and stay on. When I see that I know it's getting ready to mess up. I'll get where I need to go and when I come back to start the car it won't start. I have to wait 10 or 20 minutes and let the system cycle through then it will start. I have called four different chevy dealer and 3 of them told me they have no idea why its doing that and to bring it in. At the 4th dealer I called, an older woman answered the service desk phone. I told her what was going on with the car and she told me right away that it sounds like a bad passlock sensor and that it happens all the time. Finally, someone who is honest.
2009Sep 09
Impala LS 3.8L
- Automatic transmission
- 122,269 miles
My 2002 impala used to not start on average about 3 or 4 times a month. would have to wait 10 minutes. sometimes 20 minutes. then the car would start. very annoying when you have children in the car and they are whining. or when you need to be somewhere or an emergency came up. Dealership was no help and mechanic no help either. We decided to disconnect passlock and since then have to problems with car starting.
A D V E R T I S E M E N T S
2009Jun 13
Impala 3.4L
- Automatic transmission
- 120,000 miles
The car will run perfectly and I'll park it. Minutes later, it won't start. There is no clicking sound but the lights and radio work. It's just dead. It's happened 6 times this summer and it happens any time with no rhyme or reason. I've had a mechanic check to find the problem, to no avail. Now on the interest I just found out it could be a passlock problem. It is annoying and a major inconvenience. It has made me late for appointments and work. I'm an older, single lady and live in fear of being stranded and wary that a repair would be very costly.
2009Sep 24
Impala
- Automatic transmission
- 24,000 miles
I've read many online complaints about this issue of the security light disabling my car. I find it appalling that Chevy has done nothing to remedy this issue. I'm older and found myself stuck in a parking lot with a broken car.. Don't know yet what it will cost to fix this. Will not but GM again.
2009Sep 20
Impala 6 cyl
- Automatic transmission
- 43,000 miles
I bought this car new in 2002, great driving car. In 2009 I started having problems with my car not starting. The security light comes on and My keyless entry wont work. After letting my car sit for 15 minutes to 1 hour it is like nothing is wrong. I have read about the pass lock system and feel they need to recall this due to many people having the same problem. I so do not think it is fair for me to pay 500.00 to 1000.00 to fix GM's problems. I am very frustrated. GM I hope you read these and help your customers, otherwise I will not buy another one of your vehicles again.
2009Aug 01
Impala LS 3.8L
- Automatic transmission
- 77,671 miles
Ok, I have heard enough. The charts on this site show that the passlock problem is far and away the biggest problem for the Impala, and I have heard this is for several GM vehicles. And I have read several of the complaints.
I have not pulled the trigger for a repair, as I know it is
1) Expensive
2) Not Guaranteed to last any length of time
3) A clearly faulty designed component
I have argued with the dealer, and with GM's official complaint department.
The complaint department suggested we send snail mail to (for Canadians)
GM
1908 Colonel Sam Drive
Oshawa, ON
L1H 8P7
For US, you will have to contact GM for the mailing address. (or Google)
Since there are so many people with this problem, I would like to know if there is some way for us customers to engage in some group action and pressure GM to fix this problem. I am open to any suggestions.
This website is great because it provides statistical proof that this problem is not isolated. Could you guys (website) provide us with the statistics so we could show it to GM, or any potential lawyers? Thanks.
A D V E R T I S E M E N T S
2009Aug 12
Impala LS 3.8L
- Automatic transmission
- 77,671 miles
Ok
I want to add that we should all consider this to be a safety issue, not an inconvenience. A working vehicle is an essential tool. There can be several circumstances that a non-functioning car puts peoples health or life at risk
- being in remote areas, no cell phone connection, adverse weather (or some other threat)
- in danger from a criminal(s)
- a first responder, physician, or similar position that requires being on call and available in a timely manner. Other peoples lives could be at risk (yes there is redundancy, but it should not be pushed)
And less so, but still very important
- missing a shift, resulting in job loss
- late or missing an appointment, resulting in job loss or missed once in a lifetime opportunity
We should not minimize the importance of having a working, reliable vehicle.
2008Mar 01
Impala
- Automatic transmission
- 120,000 miles
The car would not start on occasion when the ignition key was turned to the start position, this was happening with the "factory" keys. When it would not srart, the dash lights would go out as if the battery was dead when the key was turned to the start position, however as soon as the key was released from the start position all the dash lights would come back on, including being able to use the windows, etc. This has gotten progressivly worse, with the same symptoms. A new key was cut at a hardware store that would stick and not allow the ignition lock to turn sometimes, even when this key was not a problem in the doors or trunk. Since the use of this "new" key the problem has gotten worse at a faster rate than before this key was used regulary. When the key would stick, moving it around in the ignition lock would most often allow it to start. Now the car will not start frequently with the any of the keys.
A dealer sugested getting a key made for the VIN (about $30) before trying other solutions. If the Key does not work, take the ignition lock to a locksmith and get the tumblers reset. If neither of these work the problem could be the passlock cylinder (about $220) and would require about two hours of dealer shop time to correct the problem.
2009Jul 03
Impala 3.4L
- Automatic transmission
- 20,505 miles
Pass lock light not always on at startup but does eventually come on and stays on. About every 8 -10 start attempts the ignition does not work at all and I need to wait 1 -2 minutes for a re-set then ignition would turn motor over. Local mechanic shop with supposedly 20 yrs exp at GM dealership changed my ignition tumbler which he was 99% sure was the problem, cost $468. Pass Security Code light stayed off for two days, then came back on along with other associated no start issue. He had car for 3 days in total, but could not find any reason for the continued problems. We eventually talked him into allowing us to have a GM dealer diagnose the car and he would pay for 1 hour of time ($99.95). Dealer found the following
B1000 ECU Malfunction
B2960 Security System Sensor Incorrect but valid
B3031 Security System Controller in learn mode
P1626 Theft deterentfuel enablesignal lost
P1631 Theft deterent fuel enable signal not correct
My guess is that this theft deterrent fuel thing is why the ignition would not turn the car motor over from time to time. Anyway the cost for a new BCM and program is $551.67. We went back to the original mechanic asked why he changed the ignition tumbler without knowing for sure that part was faulty? He did the right thing and refunded our intial repair cost of $468. So, bottom line a total of over $1200 spent and $113 + $552 is out of our pocket. GM should also do the right thig here and re-call these poor quality / faulty BCMs. The car only has 34,000 original kms on it !!!!!
2008Aug 01
Impala 3.8L
- Automatic transmission
- 12,500 miles
I have put together an instruction sheet on bypassing the passlock system which should fix the intermittent no start, security light coming on, or having to do the key relearn process. If you would like it sent to you to try it yourself or take the instructions to a mechanic, send your E-mail address to;
shofner_aron_w@yahoo.com
A D V E R T I S E M E N T S
2008Apr 26
Impala SE 3.4L
- Automatic transmission
- 120,000 miles
I see many complaints on this subject. In my case I bypassed the sensor on the key cylinder. Email me if you live close by and would like this done or if you want detailed instructions on how to do it.
shofner_aron_w@yahoo.com
Sparland, Il. 61565
2009Jul 19
Impala 3.4L V6
- Automatic transmission
- 155,000 miles
click to see larger images
Complaint Photos
When you put the car in gear and take your foot off the brake, The doors lock over and over again before the Security system light goes on. This happens at least once a week and the Qurk last for days. Also when this is happening the day time running lights don't work when in Drive. and my head lights stay on when you turn the car off and shut off them selfs after 5 minutes. When the Security systems is working properly The head light auto shut off systmes don't work. but the car security systmes works. When the Car don't Start (Loc PASS Error ) I wait 30 miuntes and it will fire up just fine somethings with the Security light on sometimes not.
2007Jul 01
Impala LS 3.8L
- Automatic transmission
- 74,000 miles
See post 140. I put up with this problem for a bit over a year. Finally broke down and had to get the BCM replaced. I did not go to any GM dealer...all the mgr's I spoke with in the service departments played selective ignorance. I then took it to an auto electronic specialist in Concord, CA. Their motto is, "if we don't fix it you don't pay". They had my car for 3 days. They simply would not replace the BCM and send me on my merry way. They wanted to know exactly what the issue was. So they tested my BCM and there were multiple "bad pins" in the BCM. I had several codes come up during diagnosis. They wanted to see where the possible faults were coming from since this is a national problem with this car. Shame on GM. During the replacement, they noted my headlamp wiring had shorted out and melted.
So, to make this short, my car runs like it did prior to this faulty BCM GM used in thousands of these cars. My fix was expensive, $1100.00. Much cheaper than a car note for the next 4 years. Also, the staff at the facility were very thorough. Not to mention a lifetime guarantee!!
Stop the hassles and go for the BCM replacement is all I can say.
Good Luck all you fellow Impala owners.
2009Jul 16
Impala 3.4L V6
- Automatic transmission
- 155,000 miles
GM can take there Chevy Impala's to Bangalore India were since 2002 they have built an state of the art G.M Tech Center and Collage. no one ever talks about it. but its there I was there in 2003. (They took America jobs away see were it got them) Bankruptcies. G.M was more concerned about they Over Seas Crib rather then building good vechicals. . Maybe G.M Indian engineers can figure it out the passlock system.
I am a laid off Detroit automotive Cad designer. My job went to India I can't afford to pay for someone to fix my Impala Pass lock security system ( is a joke). I will drive my 2001 Hyundai It never gave me a problem and cost 1/3 of the price of a impala. Stay away from G.M they don’t back there mistakes.
Great Lakes Dan~ Detroit Michigan.
2009Jun 01
Impala 3400
- Automatic transmission
- 64,001 miles
Amazing array of problems - all electrical. The door locks lock continually, the interior lights turns themselves on, the radio locks, the e-brake light is reversed, the high beams come on themselves, sometimes it won't start and multiple warning lights cycle on - when the dash is working - a few times it has cut out completely.
I bought this car partly because it was made a couple hours down the 401 from me - trying to support the local workers. Now I'm hung out to dry with a car that is continually sucking cash for problems that shouldn't be showing up this early. My last car was a Hyundai and my next will not be a GM either.
2007Aug 31
Impala 3.8L
- Automatic transmission
- 61,000 miles
I filed a complaint on here a few years ago. My husband completed the passlock bypass last week...didnt work. So finally, my car is being towed to the Chevy dealer where it is being diagnosed. Thank goodness we know the head mechanic and he is aware of our problem and actually suggested we do the bypass since he legally could not. I will keep everyone posted as to the actual problem. I'm so sick of being stranded with my 5 and 3 yr old. This is totally insane and completely unsafe.
Update from Jun 30, 2009: OK dealer diagnosed a TON of computer codes all associated with the BCM. It was diagnosed and replaced in under 4 hours. My security light is off, no more clicking, door locks work, no more battery light on, etc. Everything is fine....for now. I'm still sitting on eggshells, but for now, it starts, runs and is fine...to the tune of $571.00 plus $65.00 for the tow...
2002Nov 13
Impala 3.4L
- Automatic transmission
- 30,000 miles
I have decided to never sell this car. If it takes 20 years until GM admits the problem and does a recall, I want to have the satisfaction of pushing the car onto the lot and making them fix it.
2009May 29
Impala
- Automatic transmission
- 38,000 miles
In the past month, this car has completely locked up five times. Before I realized it was the passlock system I purchased a new battery thinking that was the problem. Now that I know that GM is responsible for this travesty I am as frustrated and angry as the rest of you. I purchased this 2002 Impala from my aunt after my uncle died last year; it only had 22,000 miles on it and the asking price was fair. I am 62 years old and disabled and currently a student in college so financially I am quite insecure. I don't know where to turn or what to do! I've researched and found a "bypass kit". Does anyone know if this will take care of the problem if I get this installed?
Update from Jun 30, 2009: Just an update from my previous complaint regarding the faulty passlock system on my 2002 Chevrolet Impala. Even the dealership manager said Chevrolet made a huge mistake when they implemented this system years ago.
2005Mar 15
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
leaving work 2004 got in car, it started and SECURITY light came on and stayed on and IS STILL ON to this day 6-16-2009. Took car to dealer about a month later in 2004 due to a broken window motor, I said check the security light too. They DEALER (in OHIO)checked and could not figure out why the SECURITY light was on. Charged $150.00 for the check. NO RESOLUTION. They stated since the car still starts I would not worry about it. Went to another dealer maybe 6 months or so later for an oil change and asked them check the SECURITY light. Paid another $130.00 they did not know and basically stated the same thing, DO NOT WORRY ABOUT IT.
One day went back home to Chicago and on my was back to Fort Wayne, IN at 12:30am DEAD AT A GAS PUMP in the middle of nowhere. Gas station closed and there we were stranded. I would turn the key all the lights came on but would not turn over. Waited (doors locked) about 15min. tried again and boom it started. As I lived my life in Fort Wayne one afternoon leaving for lunch, AGAIN no turn over. Waited 20min STILL did not start. Went back in and 4hours later leaving for home car started. Went to dealer there same thing as above and another 100+ bucks GONE!!!! Back in Columbus Oh (GOODYEAR GEMINI) got hoses, bad steering column(replaced it) some other stuff an asked check the SECURITY light they said GO TO A DEALER.HAHAHAHAHAHA!!!! ARE YOU KIDDING ME! Today in Houston Texas(where we live now) NO TURN OVER. HEY CHEVY WHEN ARE YOU GONNA GET SOMETHING DONE ABOUT THIS!!!! IT SUCKS! Oh I think I am in the wrong compaint page I should be number 149!
2006Jul 15
Impala
- Automatic transmission
- 25,000 miles
This is the same problem listed here by 147 others! It has happened twice to may car: 2006, dealer fixed and we had to pay half, Chevy paid other half. After, I called and raised cain with their customer service. Then it happened two years later, $500 to repair at dealer. I Told Chevy to go on AutoBeef and read the complaints, but the lady said that they really could not go by things on the internet to verify a problem. This will continue to happen. We have done the turn engine off, key on and off, and wait and usually it works, but this is Chevrolet's problem and if they will not recall, then at least they can pay the total repair each time it happens to all of us. I have also contacted the National Highway Traffic Safety Adm. at 1-888-327-4236. This may not merit a recall to them but it is a safety problem. A woman or man can be stranded and killed in this day and age. (Sitting on a parking lot waiting for the car to start!). If we all can file a complaint by calling maybe Chevrolet will at least pay for the total repair each time this occurs. This is totally their problem and caused by them! This happened again to us at about
45,000 miles. If there is a class action suit or petition, I will certainly sign up. Does anyone have the solution to fix it? Please post it!
Thanks!
2008Jul 02
Impala 3.4L V6
- Automatic transmission
- 130,000 miles
I finally read about a solution to the problem. I tried it and it seems to be working. Someone smarter than me figured out what was causing the problem and worked out a solution for it. The problem is that the computer on the car has to ID the ignition switch through a chip on the side of the tumbler assembly. The chip has a certain resistance to it that the computer reads. If the resistance is not right, the security system engages. One person on this site by-passed the chip by wiring in some resistors. there are 3 wires connecting to the chip. Yellow, black and white. The connectors oxidize over time and cause extra resistance. This can be affected by temperature (which I noticed) and humidity. Unplugging and re-plugging a tumbler assembly scrapes some of the oxidation off and helps it to work for a while. I plugged and unplugged the wires several times and then placed a small amount of di-electric grease on the connector and plugged and unplugged it a few more times. This grease helps prevent oxidation in the connectors. I put just tiny bit more grease on the connector and put everything back together. So far, so good. Before I did this I had to re-program my car 2 - 3 times a day. If you can do this yourself it will cost you about 4 - 6 dollars. If you hire a mechanic, you will have to pay for the labor of removing and installing the ignition switch. Instructions for removing the switch can be found on the internet. Good luck! We know GM (Government Motors) will never be interested in this.
2007Jun 06
Impala LX V6
- Automatic transmission
- 60,000 miles
This is my 3rd posting. I was going to trade in the car but I bought this used so I still owe on this and it's hard trying to get a new car and take what I owe on this and add it to another payment. Plus, I was afraid of taking my car to a dealer to look at it because 9 times out of 10, IT WON'T START. So I knew it woudn't start when the dealer went to drive it.
So, my husband and I decided to replace the ignition switch that Chevy told us it would take to fix this. We already replaced the BCM and it worked for 2 months then started happening again. We heard that if we replace the ignition switch, this would solve the problem. We were hesitant about this since other's have mentioned they had this done and it didn't work. Anyways, I had that done on Monday for $380.00. It's now Friday, 5 days later and my car wouldn't start during lunch. So we're taking back in on Monday and re-opened my complaint file with GM. Not that they care. I just love how GM found a way to totally screw me out of money.
2007Apr 01
Impala
- Automatic transmission
- 145,000 miles
I have to leave myself an extra 10 minutes everywhere I go. I have to sit in the parking lot with my 3 kids in the car after shopping and just wait. I have been late to appointments as well because if you try to start it one minute 2 soon, you have to wait another 10 minutes. It is so embarrassing. Now my cooling system has began to fail as well. I am so fed up with this car. GM needs to do something.
2006Nov 14
(reported on)Impala 3400 V6
- Automatic transmission
- 90,000 miles
There should be a recall on the GM cars for the passlock problems.
2007Apr 03
(reported on)Impala
- Automatic transmission
- 80,000 miles
There have been several times that my car simply would not start. When I first got the car I thought it was a battery problem so I would get jump offs. This has been a huge inconvenience and the dealers say they could not diagnose the problem unless the security light was on even though know what the problem. The dealership expects you to bring the car there when the light is on which is always not the case. And when it does come on you may not be near a dealer. I called Chevrolet stating they need to have a recall on these cars and I just wasted 30 daytime minutes on this. The dealer is going to charge me $650.00 to fix the problem. This is foolishness, so I think there needs to be a petition for a recall.
2007Jul 01
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
I have posted here a couple of times. I refuse to take my car to any dealership. They like to over charge and play dumb as to the particular problem with this model car.
I had taken my car yesterday to be diagnosed from a local, honest and reputable auto center. The codes that were reported were; PO128 Coolant Thermostat P1189 Engine Oil Pressure Circuit, P1626 Anti-Theft System fuel Enable Circuit, P1631 Theft System Password Incorrect, U1046 Loss BCM, VTD, DIM, PZM, and or SBM Data. Also revealed; Parking Brake Affects the Behavior of Problem with Lights. Also, the owner of this shop did not charge me for the diagnosis. A local GM dealership wanted to charge me $250.00. This is exactly why I refuse to deal with any greedy dealership. There only purpose is to generate revenue at the expense of screwing the vehicle owner.
The service center I took my car to told me they could have trouble shot each code by replacing parts, but they were honest enough to tell me it would have not solved the initial problem and may not even made a difference to replace the parts. I firmly believe it has to do with the BCM still. I have an appt on 03/26 to take me car to the Auto Electronics company they send their service techs to for advanced electrical trouble shooting classes. Basically, my car needs a specialist. I will update this post after my appt with the "Electronic Auto Specialist".
2009Mar 18
Impala 3.4L
- Automatic transmission
- 62,652 miles
Ok, I found out it's NOT the security. It is your fuel. You have to put gas treatment and fuel injector cleaner in your car, and it will start every time. If you still have problems, I don't know, but paying $10 at a Winn Dixie is better than paying tons at a dealer.
2007Jul 14
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
Hi everyone.. well I just want to share with you owners I have been enduring this for over a year now. It started July of 2007. Of course I was stupefied at first since I had a brand new Sears Gold diehard battery. I have been fortunate that the "no start" has not affected me as much as others. For over a year now, EVERY TIME I turn the key, on a daily basis, I have to pull on my headlights. If I don't, my headlights will flash in unison with the passenger side relays clicking away. Also, if I don't manually turn on my headlights, while driving people think I have an emergency since my headlights are flashing. If I want to to use any of my interior lights, I experience a "disco" inside with lights flashing like crazy and the relays tripping. My A/C will not blow cold air either. You can hear the compressor kick on and off the with the relays triggering. Sometimes my radio will read "locked". Since I love music, I refuse to let this remain. So I have to turn off my car, open the driver door, apply the emergency brake and turn the key to the on position. Watch until the "locked" word disappears, then turn the key to start the engine. My dash lights are not active either. At night, I use the light from my cell phone to see my speed or gas level. What a gas huh !!! Other than this "Pass Lock" pain in the azz, this has been a very good car for me. Did not have to replace my original brake pads till 70,000+ miles!!! So brake pads and battery is it, and I'm the original owner.
I am just now calling around to get input from GM repair shops, to see if they "acknowledge" this BS issue since many played dumb to it. I've read where some people will install auto start to bypass the "pass lock". Others have replaced the BCM (body control module). Some have even gone as far as putting a type of toggle switch on a wire. If your car DOES NOT have any symptoms, do not take it to get diagnosed via computer. The computer will not recognize any issue unless it is happening while being hooked up.
As everyone should now know..... Toyota has finally surpassed GM as the number 1 automaker by sold cars. Way to go GM....I'm from Michigan and have many family/friends who have been and are retired from GM. GM has fallen due to poor management. PERIOD.
If I get this issue resolved, I will post my resolution on this site. In the meantime...keep positive with this challenge.. LOL
2008Sep 11
Impala LS 3.8L
- Automatic transmission
- 115,000 miles
I am just so mad! This is my first car, and it took me a year working long hours to save up for it. Sometimes it won't crank, so I have to unhook the battery and let it sit for a few before it will start. The dealer that I brought it to said he was 80% sure that it was my BCM (body control modules) and he would have to reset my radio. The two repairs would run me about $1,200 and that isn't even 100% guaranteed what the problem was. To make it worse, $1,200 is all that I still owe on my loan through the end of 2009, and trading it in wouldn't be beneficial because I owe more than its worth.
Before I buy next time, I will do my research. I think my next purchase is going to be a Toyota!!! I was a Chevy girl but no more!!!
2009Feb 21
Impala LX 3.2V6
- Automatic transmission
- 115,000 miles
I had this issue occur when I had about 32000 miles on the car...the ignition and related modules was replaced. Now I have had the issue occur two times within the last three weeks. Both times I sat around fiddling with the ignition and eventually it started.Of course the signal lights went out as usual and the radio stopped working ...a safety hazard I have been living with on and off for the last year.
The dealers eyes light up and the quotations are ridiculous ...I was offered $1500 on a trade for the car and close to $1000 to repair the system..go figure.
2009Mar 11
Impala LS 3.2L V6
- Automatic transmission
- 33,000 miles
Well, add another unhappy Chevy Impala owner to this list. My car has been having this security problem now much more frequently. I thought it may have had something to do with the weather going from hot to cold as well as humidity that was causing havoc to the passlock system. Now this morning in pleasant conditions outside the car didn't start. 3rd time in one week.
Waiting 10 minutes and then restarting does work, but this is a royal pain and, of course, I was late to work. I'm hesitant to go to the cleaners, er, the dealership because I really don't feel like forking over my hard earned money for a problem that may just come back over time--plus, they're going to be claiming bankruptcy soon anyway, so now I really don't want to give them my money.
Rest assured GM, this is my last car from you guys.
2009Feb 16
Impala LS 3.8L V6
- Automatic transmission
- 129,373 miles
Have noted that the security light comes on periodically, but paid no real attention as car always started and ran great. Today, I left for work went approximately 4 miles and stopped for gas. After filling up ($1.75 a gallon) my car wouldn't start. Attendants helped push my car to a parking space where after 10-15 min. the car started. During attempts to start (at the pump and parked) lights/electrical were strong, no indication of a charging system problem (6 month old battery), etc. but also no clicking or any attempt of the engine to turnover. Though it might be the transmission/ignition switch (starter won't turnover if the car is in gear) or possibly some sort of starter motor problem.
Drove to the dealer where I bough the car and received a call just a bit ago that it was related to the Pass-lock system/ignition switch and the Body Control Module (BCM), codes in memory. Dealer service rep couldn't even explain what the BCM was or did other than some sort of Body control. Maybe I need one for my out of shape (human) body.
Approximate cost I was told will be $948.
2008Nov 14
Impala LS V6
- Automatic transmission
- 89,000 miles
This happened several times 'til I figured out what was causing it. After that as long as I started the vehicle before opening the front passenger door I had no problems.
2007May 20
Impala LS
- Automatic transmission
- 60,000 miles
BCM Mod. Replaced and a Loose wire reattached. Please check for the loose wire FIRST.
Dealership told me there was a loose wire (as others listed in complaints) and to bring car back following day for a new BCM mod. because they were out of the BCM and would order it. As I was going to leave with the car (dealership was closing) with the wire reattached, I was stopped and told that they had a BCM and would replace. I wondered
if it really was just the wire and had I left without the BCM replaced would the car have
been ok? So please check for possible detached wire. Car works No more flickering
lights, car starts, all the myriad of symptoms OK, Even the radio went out after months of this problem. I didn't trust any other dealer because each one of them said they never heard of this problem (I called each dealership for miles) and I suggested they
look up this site, etc. GM totally ignored and was NO HELP WHAT SO EVER!
Finally one service manager said he knew of this problem and that is who I had fix after a long conversation with him.
It has been several months now and the car starts and door locks work, no flickering of lights, etc. etc.
GOOD LUCK!
2009Feb 07
Impala LS 3.8L V6
- Automatic transmission
- 148,000 miles
This starting problem is just straight silly n stupid n GMC act like they don't care, but I hope they get what coming 2 them. I love GMC but after I might just go foreign as well.
2007Jul 01
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
I urge everyone that puts up with this issue to go to the National Highway Traffic Safety Administration and submit you claim. Remember.. power of the people speaks volumes !
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Your complaint information will be entered into the NHTSA vehicle owner complaint database. NHTSA technical staff review this information to identify potential safety problems. While you may or may not be contacted by a NHTSA investigator to clarify the information submitted, all reports are reviewed and analyzed for potential defects trends. Also, the NHTSA complaint database provides valuable information to other consumers and to manufacturers.
If you have any questions regarding this complaint, please contact ODI:
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Indicate your ODI Number in the contact form.
Thank you,
Office of Defects Investigation (ODI)
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U.S. Department of Transportation (DOT)
2008Nov 12
Impala 3.4L
- Automatic transmission
- 80,000 miles
Typical passlock issue - get in car, try to start, nothing......wait 15-20 minutes, start car, go on your way.
Call dealer - can fix for a few hundred dollars........no thanks. I asked why this is not a recall........"silence"........hello?........."silence"......he doesn't know why it's not a recall?????
I gave up and said....."and you wonder why nobody wants to buy an American made car"?
2007Jul 01
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
I urge all of you to call the NHTSA or go online to fill out the complaint! I have called and filed online. Not so sure how much this helps. There is a Service Bulletin on this plague. Here is the link: http://www-odi.nhtsa.dot.gov/tsbs/results.cfm (888) 327-4236
I have called several GM dealership and ask the service dept mgr if they are familiar with the passlock issue. Guess how many said yes? NONE. They know of this issue and have known for years. Sadly, this is merely a business and they know how to generate revenue by nickel and diming us with so called resolutions to the problem.
This kind of customer service and quality, of a very large portion of GM vehicles has substantially impacted their fall from grace. They will try to sell the public is has been the economy, Don't let them pull that one you. Toyota passed GM in sales this year, the first time any manufacturer has done that. Look how many troubled GM owners have switched to foreign cars. I think this is what you can call a "no brainier".
Good luck to all who spend the money at dealerships. Logic dictates here, you have a 50% chance of the same thing recurring in a few years since they are replacing the OEM "BCM" with with same OEM defective part to begin with.
2007Jul 01
Impala LS 3.8L
- Automatic transmission
- 75,000 miles
This is my 3rd post. I have done a lot of research and still have not chosen to fix the car due to the high recurrence. I am lucky...my car starts everytime, it's just everything else that goes with the known problem. I found this while doing research today.. OH YEAH.. SIGN THE PETITION. It's located a few post below mine.
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This letter is addressed to General Motors.
Why are many of your vehicles experiencing vehicle "security light on" (random events) and "vehicle will not start" (random events)?
My 2003 Impala has experienced these issues over the past 2 years. The "security light on" (who really cares) but the issue with the "vehicle not starting" is really serious.
I have investigated many difficult problems in my lifetime... I like to explore things fully!
I have vast experience in Electronics, Engine control management systems and Auto repair.
Currently, I am working as an Embedded Software Engineer.
I have fully investigated the PassLock II issues "online" and have found such a large number of complains directly relating to my complaint.
What is staggering, is that many times, consumers take their vehicle to a certified GM dealership and pay for the repair (I've seen up to $450.00 posted).
A day or a week later the problem comes back...
Many consumers have simply defeated or by-passed the PassLock system. The information and kits are available by doing a simple search.
I would like 1% of the money GM dealerships have extracted from consumers regarding this issue!
Now here is some interesting news for GM and their dealerships.
I have personally investigated my PassLock problem from a serious technical view point.
The dash was tore apart and eventually, I was able to remove the ignition switch which has the Pass Lock (magnetic sensor system) mounted in it.
The ignition switch was dissasembled and I looked closely and observed a few interesting things about the PassLock system design.
1) The male connector does not fit securely in the female connector receptacle. It can wiggle up and down and back and forth.
2) The connection is a "blind connection" meaning that during assembly one would not know if the PassLock connector was connected correctly or not.
3) The male and female pins used on the PassLock system are "Tin" plated and subject to oxidation over time. The pins should have been "gold plated."
The grey oxidation was clearly visible under 10X magnification.
4) The Body Computer does not adjust over time for the oxidation that build up on the PassLock pins.
The critical analog PassLock signal drifts depending on mechnical issues, temperature and humidity.
Ok - GM -> The PassLock cat is out of the bag!
What I did about this problem.
I certainly did not take the vehicle to any GM Dealership and get "rear-ended."
I simply hand soldered the three wires (Black, White and Yellow) directly to the PassLock sensor.
The vehicle is repaired and I would like to let GM know that when I sell this vehicle, I will offer a "LifeTime Warranty" on the security system for this vehicle (more than you can do)!
So what is GM doing? Well, the Dealerships are collecting a lot of money from us. They, the Dealershipsr are simply replacing the sensor ($150.00).
Can all of these sensors be going bad? The answer is no...
When the sensor is replaced the oxidation on the female connector pin is temporarily scraped and makes a better connection. Three years down the road (guaranteed!) you will be up against the same issues.
So the "root cause" of this failure and GM's inability to permanently fix this problem is now understood.
When consumers are installing bypass kits they are not bypassing the Body Computer or the three required signals to the Powertrain Controller (Class II serial communications, Fuel Enable and Crank Enable) they are bypassing the sensor and the connector. The problem is with the connector and its pins!
OK -> GM and Dealerships wake up and return all of the money you've swindled from us! You use technology against consumers and we are sick and tired.
GM, I've seen your last quarterly report and it looks like "we the consumers" in "North America" will not have to be dealing with you for very much longer.
I wish you all the best of luck!
Dr Zach
2009Jan 01
Impala LS 3.8L
- Automatic transmission
- 127,000 miles
This problem actually began 3 years ago. I tried everything and eventually had the car towed to the dealer. They said I had a bad battery and replaced it. I found this hard to believe as the battery only a couple of years old. I had no problems for a while and then it happened again. No start, nothing I could do, tried disconnecting the battery etc... and still nothing. With no other choice I had it towed to a different dealer. Same explanation, Battery!!!! Recently the security light has been coming on and it has happened twice in six weeks. I took it to the dealer and they saudered a loose wire at the body control module and also replaced the B.C.M. 500 bucks. It just happened again so the 500 was for nothing. Has to be the security system/passlock. Still not fixed but the temporary solution until a permanent one can be found is to remove key, open door, replace key in ignition, sit 10-15 min. and try again.
2009Feb 08
Impala LS 3.8L
- Automatic transmission
- 189,000 miles
This has happened yet again; stranded out in the middle of nowhere. Thanks GM.
Remember; SIGN THE PETITION, even if it probably won't pan out into anything... Tell everyone you know :)
http://www.petitiononline.com/75020780/petition.html
2002Feb 01
Impala LS 3.8L V6
- Automatic transmission
- 120,000 miles
After finding this site (1st timer), I'm amazed at number of complaints. I unknowingly have this problem, but my car always starts. I feel the reason is because when I got my car I installed a Viper security/auto start system. This system bypasses the Pass-Key System. Recently though sometimes I've noticed my overhead info system wasn't coming on and A/C-defrost for at least 5mins after I started the car. Mechanics said computer had a bunch of "odd" codes stored. They cleared the codes and reset the computer, cost was $39.95 (in SD and not at a dealership and will scan n/c if check engine comes on again). Obviously it's the PassKey System and/or bad connection issue. It should be GM's responsibility to fix this problem and reimburse everyone, because of their design flaw. It saddens me to say, but after being a lifelong GM buyer, shortly my next car will be foreign. Because of issues in the past and now this, I'm tired of GM not standing by it's product and leaving it's customers hanging. This is another instance of GM and it's dealerships, knowing there's a problem with their cars and acting dumb while the dealerships profit by "parts changing" the problem, instead of bypassing the Pass-Key System or better yet FIXING the actual problem. I know this doesn't help everyone (unless you install a security system where bypassing the PassKey System) but it gives evidence to the problem and/or a possible fix. Best of luck to all. (I'm also a recipient of GM's BAD intake manifold/plenium gasket design problem w/3.8L V6's.)
2007Mar 01
Impala LX 3.4L
- Automatic transmission
- 70,000 miles
Passlock system been a problem for almost 2 years now - had ignition replaced, lasted 2 months, now will be getting a new bcm. I wrote to my US Senator and told him they should not bail out GM until GM stops making defective cars. Anyway, this is my last Chevy.
2009Jan 23
Impala LX 3.2L V6
- Automatic transmission
- 70,000 miles
My mechanic told me this is a very common problem for the Impala's. I just got done paying $600 regarding the seals and the coolant system (at least I will be getting money back from that class action suit to help defray costs). I have always bought American being a 1st generation American and this was instilled in me. Don't know if I will again.. Thanks
2007Mar 31
Impala LS 3. 4L V6
- Automatic transmission
- 69,000 miles
intermitant starting has turned from periodic to daily. sometimes every time i get into the car. sounds like everyone else's problem. would like to know if there is a real fix, or am i just stuck with this. why doesn't GM own up to this incompetence and have a recall?
2009Jan 02
Impala LS V6
- Automatic transmission
- 102,212 miles
The car won't even start. I had to tow it to the local Chevrolet dealership. The service tech told me that I had to replace my bcm and ignition switch. Approx. $1200 for everything. I was told that I couldn't buy a used bcm because it has already been programmed. I can not believe this is not a recall. IF and WHEN it becomes a lawsuit, count me in.
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2009Apr 08
Impala 3.4L V6
ok so i am glad to see i am not the only one with this problem, and i am not the only one in my family to have it either! i bought the car used this year back in February, the issue with the passlock didnt start until after my 30 days were up! if i would have known i would have got a dodge instead, i have to let my car sit for 10 mins with the key on to get the damn thing to strt again! oh and don't get me started on the radio, don't ever remove that because you open a whole new can of worms with that! if you want a better radio in the car hook the factory one up in the trunk!!! not only am i having problems with the passlock but my daytime running lights aren't working same with the interior lights and now when i turn on my head lights at night i get the dummy light saying i need to fix the car, two main reasons for that the passlock and the radio, 1 wire on the factory stereo got disconnected and wow the problems that made!! i think i will go back to my dodge neon! i might have blown the motor in it 4 times and replaced the tranny but at least the damn thing starts when i want it to and gets me where i need to go!! thanks alot GM no wonder you SUCK ASS and are going under! i know we are all out there just trying to make a dollar but this is f*cking retarded, how can you get away with this? oh wait your not thats why you are starting to close factories and losing money!! if you would have asked me who made the best cars ten years ago and i would have said GM is the best and i dont want to see them go but now i cant wait until your gone!
yours truly
another customer you bent over and raped with your garbage cars
oh yeah i signed that petition at http://www.petitiononline.com/75020780/petition.html for GM and wow i was the 265 person to sign you think after that many complaints about the passlock and other problems with the impala you would do something about it
Nate B.
Cornwall, Ontario, Canada
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