definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
46,062 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2002 Pontiac Bonneville:

Unsubscribe any time. We don't sell/share your email.

problem #2

Nov 192006

Bonneville 6-cyl

  • Automatic transmission
  • 92,123 miles
The tip of a spark plug broke off into the piston causing me to have to replace the engine. GM has refused to reimburse me for my replacement engine.

- Riverdale , GA, USA

problem #1

Nov 102003

Bonneville 6-cyl

  • Automatic transmission
  • miles
I received a recall repair for my 2002 Pontiac Bonneville-campaign #03034. If I had replaced the upper intake manifold gasket, throttle body nuts, or throttle body gasket before August 8, 2003, I would have been eligible for reimbursement. Since I only had owned the car for 1 year at that time and had not replaced these items, I had a recall repair done on 11-10-03. I mentioned at the time that when I come into my garage, I could smell hot coolant. The shop followed the instructions of the recall repair to replace the throttle body nuts and added something similar to a "stop leak". we tried at that time to get a better "fix" to properly repair possible problem, but this is all shop would do. Now, after my warranty is over, I was told that I need to replace my upper intake gasket kit since the intake manifold gasket is leaking coolant externally.

- Stewartville, MN, USA