Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
86,555 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 drivetrain problems

drivetrain problem

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2003 Chevrolet Impala Owner Comments

problem #9

Dec 102013


  • 149,000 miles


The contact owns a 2003 Chevrolet Impala. The contact stated that while driving at any speed, the vehicle would start to shake with a knocking noise then it stalled without warning. In addition, the transmission leak fluid and failed to start. The vehicle was taken to an independent mechanic where it was diagnosed that the engine needed to be replaced. The manufacturer was not notified of the failure. The approximate failure mileage was 149,000.

- Baton Rouge, LA, USA

problem #8

Oct 132015


  • 46,000 miles
I first started having this problem in October 2015. I purchased this vehicle in July 2015. I trusted this company because I seen they had great reviews. I actually trader my previous car in because it was having problems starting and also shutting off while driving. Now my current car is having probelms starting. I had my battery, alternator & starter checked, and it was good. The company I bought the car from provided warranty coverage on the vehicle. I took the car to get serviced in the beginning of October for an engine mount replacement. They replaced my engine mounts and fuel pump. 2 days after that service I started having issues starting the car. When you put the key in you usually hear beeping noise and I didn't. than my battery light, ABS light, trac off light came on and stayed on and in the message center tracking system light came up. This was very inconvenient due to the weather and having to get 2 toddlers ready for school in the am. I took the car to my mechanic and he replaced the ignition switch. I didn't take it back to the same place because everytime you take it for service my deductible is $100. After 2 weeks after replacing the ignition switch the problem happened again. So I called my warranty service center they said to bring it back but if it needs fixing I have to pay again. (also I am paying a car note of $115 a week). I refuse to keep paying money for this problem. This can be very dangerous in so many ways. It's very fustrating because I trader my previous car (2000 Buick regal) in for the same reason. I'm not sure if it's a wiring issue, sensor issue or maybe when they changed my engine mounts or fuel pump something got disconnected. This problem didn't start until they did service on my vehicle. Please I need some help on what to do. Little minor issues I don't mind keeping up with but something like this needs to be fixed!

- Philadelhia, PA, USA

problem #7

Jul 122010


  • 140,000 miles
The contact owns a 2003 Chevrolet Impala. The contact stated that while driving at various speeds, the accelerator vehicle failed to accelerate. The failure occurred on numerous occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 140,000.

- Memphis, TN, USA

problem #6

Mar 142014


  • 40,000 miles


The contact owns a 2003 Chevrolet Impala. The contact stated that the vehicle failed to start. The contact mentioned that the warning lights illuminated wheneven the vehicle was powered on. The vehicle was taken to a mechanic. The vehicle was repaired. The failure recurred. The manufacturer was not made aware of the failure. The failure mileage was 40,000 and the failure mileage was 44,000. The VIN was not available.

- Cassville, MO, USA

problem #5

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

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problem #4

Jun 112009


  • 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

problem #3

Oct 162009

Impala 6-cyl

  • 99,999 miles


I have been looking for a page like this for a few years now, I don't even know how I got to this one. This 2003 Impala started acting like this before the miles I place down, because I bought this car use and my warranty end, I was told I couldn't do anything (the dealer stated) when I come to a stop and then start well try to start the car hesitate and then a hard kick/punch and it would do this only at red lights, stop signs, or reverse. So on 05/12/2010 I bought this car to a auto repair shop they perform a test and it check out two of the shift solenoids for the transmission were bad so they replace both shift solenoids, side cover gasket and transmission filter. Cost me $1,120.56 with in a week it was still acting like it was never work on. I started asking other owners about there Impala they all said it did the same to them. Now here it is 2012 and my car still kick hard and I can't believe there are no recall on the transmission. I am a little shock my mother use to work for GM -

- Tacoma, WA, USA

problem #2

Mar 072011


  • 116,000 miles
I purchased my 2003 Chevy Impala in 2009. Car ran perfect when we purchased it. After 6 months the transmission started to slip. That is not the major issue. The major issue is that the car does not start all the time. Changed battery and it still does not run. It will start but only runs until you put it in gear. It then stalls out! this car has been great but is not unreliable..

- Forked River, NJ, USA

problem #1

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

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