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.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Power Train: Automatic Transmission Problems


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
24,096 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.

1998 Pontiac Bonneville transmission problems

transmission problem

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1998 Pontiac Bonneville Owner Comments

problem #8

Sep 302003


  • miles


Vehicle's warning signal starts up and the vehicle hesitates or stalls out while driving. The intake manifold was also damaged causing the vehicle to smoke and over heat.

- Louisville, KY, USA

problem #7

Apr 202004

(reported on)

Bonneville 6-cyl

  • 78,600 miles
The vehicle's transmission failed.

- Montello, WI, USA

problem #6

Dec 192003

Bonneville 6-cyl

  • Automatic transmission
  • 49,170 miles
Consumer bought the Bonneville in August, since then it has been in repair shop 7 times. The first four times were for transmission failure. They replaced the pressure control valve and throttle body. The remaining visits were for 4 fuel injection system failures, injector coil failures melted 4 spark plug wires. Also, water pump started leaking.

- Elwood, IN, USA

problem #5

Aug 012003

Bonneville 6-cyl

  • Automatic transmission
  • 65,000 miles


1998 pontaic Bonneville SE, standard V6 engine, while stopped with the brake engaged the engine will surge and leap forward. Car engine will quit while driving, causing loss of anti-lock brakes. Transmission sometimes shifts up and down without any reason, even at speed causing control problems. Suposedly related to the design of the intake manifold ( plastic cracks causing vacum problems and sometines loss of water). Also exterior paint started to peal off at 70.000 miles.

- Somerset, KY, USA

problem #4

Nov 051999


  • Automatic transmission
  • miles
While driving in city at aprox 35mph warning light came on for emission control. Contacted dealer, who said that it was the transmission, and it was not under warranty. But vehicle needed a new transmission.

- Tacoma, WA, USA

problem #3

Sep 151999


  • miles
Got back from vacation had the vehicle serviced for an oil change regularly since receiving the car back.vehicle in gear with foot on the brakes vehicle surged and jerked.

- Indianapolis, IN, USA

problem #2

Jun 021999


  • Automatic transmission
  • miles
Transmission bucks when in acceleration on a hill---bucking is severe--call to your attention because others in area have exactly same problem---I fear transmission will become noticeably worse as problem continues.

- Bethel, CT, USA

problem #1

Feb 061999

(reported on)


  • Automatic transmission
  • miles
When the vehicle is stopped on a slight uphill incline it will roll backwards when the brake pedal is released, and before the throttle is depressed. This was reported to the servicing dealer (jackson Pontiac, macon, ga.) I was told that this was normal for this or similar vehicles. I have never owned a vehicle with an automatic transmission that would not hold itself in this or similar situations. I believe that this is a safety defect and should be remedied by the manufacturer. The potential for an accident is great. I have documentation of their report if you need it. Thank you.

- Macon, GA, USA

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