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10.0

really awful
Crashes / Fires:
1 / 13
Injuries / Deaths:
1 / 0
Average Mileage:
76,443 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 engine problems

engine problem

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2003 Chevrolet Impala Owner Comments (Page 3 of 4)

« Read the previous 20 complaints

problem #31

Aug 192014

Impala

  • 200,000 miles

A D V E R T I S E M E N T S

The contact owns a 2003 Chevrolet Impala. While driving various speeds, the vehicle stalled and the service engine light illuminated constantly. The contact also stated that the vehicle overheated and accelerated without warning. The vehicle was taken to a dealer where it was diagnosed that the ignition switch failed and needed to be replaced. The manufacturer was notified of the failure. The failure mileage was approximently 200,000.

- Atlanta, GA, USA

problem #30

Jan 012007

Impala 6-cyl

  • 40,000 miles
My passlock system has been malfunctioning for years now (2007-2015) and at random intervals, my car will not start and I have to wait 15 minutes before the engine will start. Sometimes the "security" light will turn on while I am operating the vehicle and after I have parked it, the security light will flash and I can't start the engine until after the 15 minute cycle has concluded. Not only has this issue been an inconvenience, but I have had occasions where it has put me in danger. I am not responsible for the passlock system failure, nor do I have the funds to repair or remove it. I believe that passlock was a faulty system from the beginning and the fact that it has not been recalled shocks me. I am very afraid that one day the passlock system malfunction will occur when the vehicle is in motion and that I will lose power steering, braking, and other vital operational functions. Noticeably, the passlock malfunction has become more frequent, so I needed to file this complaint. I have talked to service experts at my local Chevy dealership and they have told me on more than one occasion that this issue is widespread, including many GM vehicles, and that eventually my car just won't start anymore. The quoted prices to fix this issue (either repairing it or removing it entirely) have been ridiculously high and I don't understand why I should be forced into paying for a well-known GM/Chevrolet problem.

- Daly City, CA, USA

problem #29

Jul 022015

Impala 6-cyl

  • 140,322 miles
Engine runs hot for some reason, now its another problem that came weeks later after the engine problem which is it won't crank nomore at all it have to be a fuel problem because I smell gas when I try to crank it in I recently just replace a the fuel pump about 5 months ago..so if you guys can give me big help I will appreciated it not no help that I could of found out from a baby most likely Chevy need to contact me to fix my car because they sold/released the cars out knowing or not that the cars had a lil while of life I know cars from the 90's that's not having problems like these new cars ''help me please'' before I junk my [xxx]. information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Benton Harbor, MI, USA

problem #28

Nov 142014

Impala

  • 74,000 miles

A D V E R T I S E M E N T S

The contact owns a 2003 Chevrolet Impala. The contact was unable to start the parked vehicle. The security warning light was illuminated. The vehicle was towed to the dealer, but was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 74,000. The VIN was not available.

- Baltimore, MD, USA

problem #27

Jul 102015

Impala

  • 140,000 miles
"security" warning on message display. Engine does not start, have to wait minutes then car will start.

- Kenner, LA, USA

problem #26

Jan 012013

Impala

  • 88,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that while driving at various speeds, there was a strong coolant odor emitted from the vehicle. The vehicle was taken to a private mechanic, who diagnosed that the motor head gaskets wore prematurely. The motor and the head gasket were replaced several times however the failure reoccurred. The manufacturer was made aware of the failure. The failure mileage was 88,000.

- Somerset , WI, USA

problem #25

Aug 062014

Impala

  • 150,000 miles

A D V E R T I S E M E N T S

There are 3 recalls I have found that possibly are effecting my 2003 Impala but because my specific VIN # doesn't fall under any of these GM is refusing to fix these problems. 1)the body control module needs to be reset. Apparently when it goes out the cruise control disengages.....and my cruise control light is on but won't engage. Plus my mechanic says the body control module also is what is could be causing my heater fan to not work nor my information display to work. But low and behold when the cruise control light goes off they both work 2) there is a recall stating drops of engine oil may leak on exhaust manifold with hard braking and I sometimes smell oil burning after I drive. If it was my actual engine leaking oil I would smell it all the time but I don't it's just after I drive certain places that are very congested and I brake a lot 3) there is a fuel vapor leak from the gas tank which is believed to be causing my check engine light to come on. It throws the code stating I need to possible replace the gas cap (which I have done) and only comes on after I have put gas in the car. I'm alittle concerned and applaud that just because my VIN # doesn't show these recalls but Impala are having these recalls that GM won't fix these problems.

- Black Mtn , NC, USA

problem #24

Feb 052014

Impala

  • 115,000 miles
The contact owns a 2003 Chevrolet Impala. While driving at approximately 40 mph, there was a burning odor of oil emitting from the valve cover gasket on the engine. In addition, the engine warning light illuminated. The failure recurred several times. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 115,000.

- Naperville, IL, USA

problem #23

Oct 312014

Impala

  • 211,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated while driving approximately 35 mph, the engine stalled without warning. The contact merged to an emergency lane and restarted the vehicle. However, the failure recurred multiple times. The vehicle had not been diagnosed of the failure. The manufacturer was notified of the failure. The approximate failure mileage was 211,000.

- Flint, MI, USA

problem #22

Mar 242014

Impala 6-cyl

  • miles
My car will not start properly. The security light will flash several times but the engine will not turn over. Sometimes the security light will just stay on and it will turn over. This has caused a lot of problems for me. I have two children and we end up stuck places for 10, 20, or 30 minutes, up to an hour. I have taken it to the dealership and they wanted $400. To fix the security chip and the key shaft because that is what is making the security system mess up. Well now there is a recall on my car with the key, but they will not fix the chip for free and I do not have money to spend on it!

- Coatesville, IN, USA

problem #21

May 012014

Impala

  • miles

A D V E R T I S E M E N T S

The contact owns a 2003 Chevrolet Impala. The contact stated that the vehicle failed to start. The contact mentioned that several attempts had to be made before the vehicle restarted. The vehicle was taken to an independent mechanic who was unable to diagnose the failure. The vehicle was not repaired. The vehicle had been previously repaired under NHTSA campaign number: 14V400000 (electrical system). The manufacturer was not notified of the failure. The failure mileage was unavailable.

- Columbia, TN, USA

problem #20

Mar 152014

Impala

  • 108,732 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that after parking, the vehicle failed to restart. The vehicle was not diagnosed or repaired. The manufacturer was notified of the issue. The failure mileage was 108,732.

- New Hartford, NY, USA

problem #19

Jul 022007

Impala

  • 105,000 miles
The contact owns a 2003 Chevrolet Impala. The contact received a recall notification for nhsta campaign number: 14V400000 (electrical system). While driving 10-20 mph, the vehicle stalled and the check engine indicator illuminated. The failure contributed to six crashes. Two police reports were filed. The contact's husband sustained injuries to the neck and back and received medical attention. The vehicle was taken to a mechanic, but the results of the diagnostic test were unknown. The vehicle was not repaired and the manufacturer was notified. The failure mileage was 105,000.

- Lowell, MA, USA

problem #18

Feb 032014

Impala

  • 116,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated when starting the vehicle, it hesitated to start. The contact mentioned that when accelerating to 20 mph, the vehicle made a loud abnormal noise before jerking into gear. The problem recurred several times. The contact received a notification for recall NHTSA campaign number: 14V400000 (electrical system). The vehicle had not been taken to the dealer. The vehicle was not repaired. The manufacturer was notified of the issue. The failure mileage was 116,000.

- Kansas City, MO, USA

problem #17

May 162014

Impala

  • 62,000 miles
At slow speeds after considerable driving distances, on two occasions, engine turned off, leaving no power for drive or steering. Car re-started both times. No recurrence to date after ignition switch was replaced on 5/27/14.

- Baltimore, MD, USA

problem #16

May 162014

Impala 6-cyl

  • 249,657 miles
May 16, 2014 at 6:30 am I parked the car in my driveway after taking my husband to work. I locked the doors after exiting the vehicle with my keys in hand. I was in my home at about 6:42 am when my neighbor began banging on my door and yelling that the car was on fire, I took a look out of the window and came down to get a closer look, stunned there was smoke everywhere and flames under the hood. I immediately called 911 they came it took a good bit of time putting the fire out.I spoke to the firefighters after and he said he believed it"S origin was electrical. We received a quote to repair, replace the engine coolant tube on May 6,2014 from tire discounters and my plan was to drop the car off the morning of 5/16. My husband and I are both heart patients and the loss of this car was devastating. I also would like to add that we had just purchased this vehicle on April 6, 2014. The car is a total loss. We have the quote from tire discounters, video and pictures from the fire and the report from the incident. I pray for others that didn't learn of this recall in time with tragic results and I am grateful no loss of life occurred here but the pain of trying to get to appointments and getting my husband back and forth to work at honeywell begins again. Thank you for your ear. Updated 12/11/2014

- Cincinnati, OH, USA

problem #15

May 242012

Impala 6-cyl

  • 108,000 miles
Car will not start, especially when it is hot inside the car. No lights go on - nothing. Have replaced key, key cylinder (twice), and ignition switch. Next step is to replace BCM, but not sure if that will solve issue. In researching similar issues people have bypassed the security system to the BCM so car will start. We have not done this bypass.

- De Pere, WI, USA

problem #14

Apr 282013

Impala

  • 102,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that while driving on the highway at approximately 65 mph, the vehicle decelerated as the contact applied the accelerator pedal. The contact maneuvered to the highway shoulder as the vehicle exhibited a significant reduction in power. The contact stated that the accelerator pedal was depressed as the failure occurred. The vehicle then stalled without warning. The contact was able to restart the vehicle but the failure was recurring. Additionally, the vehicle would sporadically fail to start. The vehicle was schedule to be inspected and diagnosed for repair by a local dealer. The manufacturer was notified of the failure. The approximate failure mileage was 102000.

- Tacoma, WA, USA

problem #13

Aug 142011

Impala

  • 120,000 miles
I have had incidents several times over the years where I would hit a bump in the road and my car would completely shut off. I have also had several incidents where I was traveling down the expressway and my car turned off on me. I had to shift my car into neutral and restart it to continue going. I was fortunate not to have an accident.

- Jeffersonville, IN, USA

problem #12

Jun 112009

Impala

  • miles
The car would accelerate and then stall out. The motor would vibrate like it was jumping. Hard to start die after putting into drive. Had to replace the transmission and converter in 2011, spark plugs and wires have been changed. The car has blown sensors a month after getting it out of the shop. Have spent over 6000 dollars trying to keep the car running and the same thing keeps happening.

- Edmond, OK, USA

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