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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pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
6,546 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 GMC Envoy engine problems

engine problem

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2005 GMC Envoy Owner Comments

problem #4

Jul 102009


  • miles


2005 GMC Envoy.

- Washington, DC, USA

problem #3

Jul 082005

Envoy 6-cyl

  • Automatic transmission
  • 3,809 miles
The contact owns a 2005 GMC Envoy. The contact stated that the engine made a loud knocking noise when driving. While driving uphill, the vehicle dramatically decelerates as if the engine was stalling. The engine and oil lights illuminated on the instrument control panel. She took the vehicle to the dealer for an oil change, but the oil light remained illuminated. She took the vehicle to a local dealer four times and they reprogrammed the P.C. another dealer stated that the engine drags when traveling uphill, which was probably due to the clutch fans. The contact also stated that the air conditioning system does not work. After all four repairs were performed, her vehicle continues to experience the same failures. She contacted the manufacturer and they stated that they would not provide any financial assistance because the extended warranty expired. The speed was unknown. The failure mileage was 3,809 and current mileage was 82,000.

- St John, FL, USA

problem #2

Jul 282006

Envoy 6-cyl

  • Automatic transmission
  • 11,373 miles
Vehicle has intermittent throttle problem that causes the throttle to surge and the headlights to go dim to bright and dash lights to go dim to bright. This condition happens intermittently, and the dealership states there is no problem. This condition is most dangerous when driving in confined spaces such as parking lots. I have taken this problem to the selling dealership four times since July 2006 and continue to be told there was no problem.

- Murrieta, CA, USA

problem #1

Aug 202006

Envoy 6-cyl

  • Automatic transmission
  • 11,000 miles
: the contact stated while driving 35 mph under normal road conditions, the vehicle stalled. There were no warnings prior to the incident. The vehicle was taken to the service dealer, who was not able to find the problem.

- Staten Island, NY, USA

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