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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Shifts Roughly


really awful
Typical Repair Cost:
Average Mileage:
135,500 miles
Total Complaints:
4 complaints

Most Common Solutions:

  1. not sure (3 reports)
  2. fixed pistons (1 reports)
1998 Pontiac Grand Prix transmission problems

transmission problem

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1998 Pontiac Grand Prix Owner Comments

problem #4

Apr 172013

Grand Prix

  • Automatic transmission
  • 250,000 miles


I got this car used, nothing wrong with the engine or transmission. but I get the car September 2012, after that the engine head cracked. this whole time my low coolant light is on while I'm full on coolant so I ignore it. a while after getting the engine fixed my transmission jumps every time I switch gears. to find out, I need a repair or a new one so I go get one from my mechanics friend who luckily had the same one. got that put in wores perfect. for about 29 days I'm doing fine, then my car starts overheating every time I go above about 40 mph and if it hits 260 it shakes and I have to shut it off add let it cool down. and on top of all that, my heater won't work.

- , Marshalltown, IA, USA

problem #3

Mar 152008

Grand Prix GT3600 V6

  • Automatic transmission
  • 115,000 miles

I have really good mechanics they fixed the problem in march but yesterday April 12,2008 it started doing it again. Now I have to see what is wrong now. Its doing the same damn thing.

- , New Britain, CT, USA

problem #2

Apr 122008

Grand Prix GT3600 V6

  • Automatic transmission
  • 116,000 miles

I am already scared of the car. I feel like on day or night by myself maybe with the kids its just going to leave me. I advise anyone out there wanting to buy a car. Buy a car 0 miles brand new no matter if its a Kia or Hyundai and take good care of and don't get a used car and deal with somebody else's headaches.

- , New Britain, CT, USA

problem #1

Dec 012003

(reported on)

Grand Prix LE

  • 61,000 miles

the car was driven locally and only has 61000 miles. i live in a rather small town and i know of two other people that also needed a new transmission on thier car with less than 70000 miles

- , Plymouth Meeting, PA, USA

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