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.


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,809 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 AC / heater problems

AC / heater problem

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2005 GMC Envoy Owner Comments

problem #1

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

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