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really awful
Crashes / Fires:
4 / 4
Injuries / Deaths:
2 / 0
Average Mileage:
88,009 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Impala electrical problems

electrical problem

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2003 Chevrolet Impala Owner Comments (Page 8 of 11)

« Read the previous 20 complaints

problem #73

May 122011

Impala 6-cyl

  • 78,785 miles


My Chevy Impala 2003 intermittently will not start; it seems that there is some electronically activated lockout system that temporarily prevents the car from being started. (the battery, starter and other conventional part of the starting system are ok.) under certain situations, this is a safety issue since the car has been in potentially hazardous locations for a 30 second stop but then it won't start for 10 minutes due to an unknown problem with the car's passlock security / electrical / key tumbler / systems. Aside from the frustration, I cannot rely on my automobile when transporting my 90+ year old parents to lunch or whatever because I may become stranded and their health issues cannot tolerate sitting in a hot car for unknown periods of time.

- Buffalo Grove, IL, USA

problem #72

Feb 072010


  • 80,000 miles
Security light intermittently coming on. Vehicle will not start for 10 minutes after initial attempt to drive. Transmission kicks terribly when attempting to accelerate. Brake light, battery light, and airbag light intermittently flash when braking. Alternator and battery check fine at service. All signs point to BCM and gauge cluster.

- Bowling Green, KY, USA

problem #71

May 092011


  • miles
I have a 2003 Impala. I went to start my car and it would not start. The battery is not dead. Everything inside the car came on and the windows would roll down. But the engine would not turn over. After waiting for about ten minutes it started right up. I have read that there is a problem with the passlock security system in a lot of GM cars.

- Branson, MO, USA

problem #70

Apr 252011


  • 149,000 miles


2003 Chevrolet Impala security system causing starting failure. Car has new battery, starter, and alternator, and has no other defects, other than intermittent failure of the security system, causing failure to start.

- Saint Paul, IN, USA

problem #69

Jul 202010


  • 88,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that while driving, the headlights, the door locks, turn signals and anything electrical began to malfunction. Occasionally, the vehicle would not start and it would stall. The warning lights and the heat would also stop working. The dealer was unable to determine the cause of failure. The dealer suggested replacing the computer; however, they do not know if that will fix the problem. The VIN was unknown. The failure mileage was 88000 and the current mileage was 91000.

- Watertown, NY, USA

problem #68

Aug 282010

Impala 6-cyl

  • 88 miles
I have 2003 Chevy Impala and I having problems with the passlock theft system that GM puts in the car. I only had the car year and half, I haven't had any problem up to Aug 28 2010. Now once every 3 months it wont start. The car for no reason will not start. When it does start it stall out then after other try it start and the security light stays on for 4 to 7days. I haven't fixed it yet reading lot about the Chevy dealers haven't fix the problem.

- Florence, OR, USA

problem #67

Nov 252010

Impala 6-cyl

  • 75,000 miles


Rear defogger failure- doesn't work.

- Independence, KY, USA

problem #66

Oct 252010

Impala 6-cyl

  • 47,000 miles
My 03 Impala some times won't start. I have already got it fixed from dealer and as soon as it ran out of warranty, it started to have the same problem, which was fixed 6 months earlier by the dealer. GM won't help and I am stuck some times, with the car being left about two to three times in shopping malls. Need some help from GM.

- Torrance, CA, USA

problem #65

Jul 012010


  • 98,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that when he turned the vehicle off, he was unable to restart it. The failure occurred several times. The vehicle was taken to an authorized dealer where the contact was informed that the computer chip did not recognize the key and the pass lock sensor failed. The vehicle had not been repaired. The failure mileage was approximately 98,000 and the current mileage was 113,148.

- Bolingbrook , IL, USA

problem #64

Oct 052010

Impala 6-cyl

  • 180,000 miles
Do not worry about filling out this form because it is a waste of time. I filled a complaint on March 2010 and still no response, I contacted them and they tell me that the engineer has found no problems with a 2003 Chevy Impala pass-lock system.

- Mulberry, FL, USA

problem #63

Sep 062010


  • 110,000 miles


We are dealing with a problem with the ignition switch/ security system on our car at least once a week now. This issue began about six months back and is definitely worsening. We are experiencing wait times of about ten minutes to clear the security system before we can start the car and have been told this will eventually end up completely failing soon. Now this problem has caused the instrument cluster lights to fail and we cannot judge speed at night without a flashlight. I judge this a safety issue because this is my wife's car and she often has to depend on the car at nights and alone.

- Pendleton, NC, USA

problem #62

Aug 212010


  • 110,000 miles
I was driving the car and security light comes on. I stop by my house, but when I get back into the car the car won't start. Ten minutes later the car starts with no problem.

- Lancaster, CA, USA

problem #61

Oct 012009


  • miles
I own a 2003 Chevy. Impala and last year the security light was flashing in MA dash, so I pulled over and turned it off when I tried to restart it wouldn't turn on. This incident turned to a major problem, it has made me late to appointments, left my kids and I stranded and it has not gone away. This is very inconvenient and should be taken care of, I don not want to invest more money then what the vehicle is actually worth.

- Canoga Park, CA, USA

problem #60

Jul 162010


  • 80,736 miles
03 Impala that has had the service vehicle soon light come on. Was just in for oil change, light is not always on. Drive into work, car is flawless. Drive home from work, now the light is on and all interior lights flicker and there is a noise in the glove box of a tick tick tick. Stop at garage and they cannot diagnose the problem as no codes appear. Have to take out the interior fuse when I park so that battery is not drained, shop says I will need to replace the BCM. Car handles well, but why am I reading about all of the same thing happening to other GM customers of Impala's between 2000-2005" recall"

- Madison, WI, USA

problem #59

Jul 012010


  • 105,000 miles
2003 Chevy Impala will not start. The dealership states it is a BCM problem. The remote installed on the car fob does not work and has never worked. Doors will not lock and the trunk will spring open when traveling down the road. Since the doors and trunk do not lock, there is no security on this vehicle. And again the car will not start. I have replaced the battery and alternator and the car still does not start.

- Bismarck, ND, USA

problem #58

Mar 092010


  • 150,000 miles
Car will not start. At first it did not happen very often but now it is happening frequently, if I wait for a period of time it will eventually start. I am told it has to do with the security system.

- Fruitport, MI, USA

problem #57

Jun 222010

Impala 6-cyl

  • 103,251 miles
2003 chevorlet Impala will not start due to problem with passlock sensor. This is a problem that continues to happen over and over. The manufacturer seems to be aware of this and refuses to issue a recall. There seems to a liability issue if someone is stranded because of this item and gets killed or raped.

- Elmore, AL, USA

problem #56

Jun 122010


  • 140 miles
Bought a 2003 Impala in 2004 and it ran ok for a while. The car now fails to start intermittently and I have to wait 10 minutes or more for the car to start. The dealer states that is a security alarm problem, but they have not been able to fix it. I do not believe they know how to fix this problem. I have learned that there are thousands of GM cars with this problem.

- Mt Juliet, TN, USA

problem #55

Jun 152010


  • 772,000 miles
My 2003 Impala will occasionally not start. Had batter, alt and generator checked all ok. After sitting about 10 minutes car starts fine. Seems it's the passlock system and is a known problem to GM. A recall should be made.

- Brockport, NY, USA

problem #54

Apr 211984


  • miles
2003 Impala not starting. Leaving me stranded for hours till it decides to start. After searching on line for endless hours. To see its happened to several people. To take it to the dealership pay $180 to be told its was in the theft deterrent setting. To get home and a hour later it wont start.. Chevy needs to find out the problem and recall this issue too many complaints that I can read on line daily.

- Mabank, TX, USA

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