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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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
26,986 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.

2005 Chevrolet Impala transmission problems

transmission problem

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2005 Chevrolet Impala Owner Comments

problem #12

Apr 102011

Impala 6-cyl

  • 106,503 miles


I just purchased this car in February 2011. Car has operated fine and operated fine earlier today. This evening, as I was attempting to make a quick run to the store, I started my car, pressed on the brake pedal and proceeded to move the gear shift lever from park to reverse. I could not get the gear shift lever to move out of park. It was stuck. There was no prior indication to this issue. Now I'm stranded at home with no vehicle.

- Fort Wayne, IN, USA

problem #11

Oct 012010


  • Automatic transmission
  • miles
2005 Chevrolet Impala. S10 appropriate handling- letter from regarding problems with the GM dealership the consumer stated the transmission would sometimes shift too slow or too fast. The vehicle was taken to the dealer for a diagnostic test, but they couldn't find anything wrong. The consumer then took the vehicle to aamco transmission and they found the problem within minutes. GM informed the consumer, they would only give him $1000 toward replacing the transmission.

- Miami, FL, USA

problem #10

Sep 032009


  • 85,000 miles
The contact owns a 2005 Chevrolet Impala. The contact stated the transmission, speed odometer and antilock brake is faulty. Contact stated she had to replace the rotor, pads four times and the transmission is jerking. The vehicle was taken to the dealer and contact the was told she has to pay the expenses for these repairs. There are no recalls or warranties on the vehicle. The VIN number is unknown. The failure mileage was 85,000.

- Poughkeepsie, NY, USA

problem #9

Jan 222007


  • 27,500 miles


About two years ago my speedometer quit working. I would be driving and it would register 100 mph when I was not going but about 30 mph. Around the same time my horn quit working. When I honked it, it would sound faint until it just quit. Also, when I try to put my car in gear it is really hard to at times. When it does finally go into gear it makes a really loud thud noise. Now I have a leak in my radiator that has been gradually getting bigger. I bought this car because it was supposed to be the safest. Now I'm not so sure.

- Mountainburg, AR, USA

problem #8

Aug 182008


  • miles
My speedometer is reading 100 mph when I'm only going 40 - 50. When I come to a complete stop, the speedometer may move to 60. It's taken up to 3 - 4 days to move back down to the 0. then the same process will start all over again. The car also tends to drive sluggish when this is happening. Could it be the speedometer or transmission"?? I've been told to replace the cluster in the dash but will that prevent the sluggishness also"

- Madison, TN, USA

problem #7

Dec 012006

Impala 6-cyl Diesel

  • Automatic transmission
  • 24,100 miles
The contact owns a 2005 Chevrolet Impala. After releasing the brake pedal on a slight incline, the vehicle rolled backwards while in the drive position. As a result, the contact crashed into another vehicle. The dealer stated that the failure was due to the design of the transmission in order to get better gas mileage. The manufacturer and dealer stated that there is nothing that could be done. The current mileage is 30,000 and failure mileage was 24,100.

- Romeoville, IL, USA

problem #6

Jan 012006


  • miles


2005 Chevy Impala, not only mine but I've also read others that on an incline they tend to roll backwards when foot is taken of brake, I believe this is a safety problem--not something that is taken for granted with this vehicle. Thanks.

- Avon, NY, USA

problem #5

Aug 272005

Impala 6-cyl

  • Automatic transmission
  • 24,695 miles
This is rental car from alamo. Car was parked and engine was stopped on a little inclined roadside. All people exited car. Car was suddenly moved backwards and I had to jump in to the car and applied emergency brake. Car was stopped in the middle of the road. Right side door hit road sign and car damaged. It can be very very risky if there was other cars or people on the road.

- East Brunswick, NJ, USA

problem #4

Nov 232005

Impala 6-cyl

  • Automatic transmission
  • 27,000 miles
On the 2005 Chevy Impala, it is possible to shift the car into any gear without depressing the brake when the ignition is in the "acc" position and without the car being started.

- Powell, OH, USA

problem #3

Oct 052005

Impala 6-cyl

  • Automatic transmission
  • 29,000 miles
When in drive car rolls backwards even on slight incline, also rolls forwards in reverse even on slight hill or incline, have taken it to a dealer and they said this is normal of these cars.

- Ridgeland, MS, USA

problem #2

Jul 252005

Impala 6-cyl

  • Automatic transmission
  • 35 miles
1. under chassis corrosion protection failure- key suspension and power train components affecting safe operation. 2. factory did not apply standard automotive industry anti corrosion coatings prior to shipment. Damage occurred prior to dealer receipt. #. factory rep has not provided or approved any possible remedy at this time. Problem was observed at first oil change-25 July 05 -first time the vehicle was on lift after delivery to customer.

- Warner Robins, GA, USA

problem #1

Aug 122005

(reported on)


  • miles
Consumer complaint regarding the design of the 2005 Chevrolet Impala transmission system.** answer required***. the consumer is not satisfied with the design of the vehicle's automatic transaxle. The consumer explained that when the vehicle is in drive and the brake is released the vehicle will roll backwards. And when the vehicle is in reverse and the brake is released the vehicle will roll forward.

- Peachtree , GA, USA

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