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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
63,500 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.

2003 GMC Envoy XL transmission problems

transmission problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2003 GMC Envoy XL:

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

2003 GMC Envoy XL Owner Comments

problem #2

Nov 022006

Envoy XL 6-cyl

  • Automatic transmission
  • 79,000 miles


I smelled something burning after I parked my 2003 GMC Envoy XL in the garage. After inspecting, noticed transmission fluid leaking on ground. Towed to mechanic. Told transmission cooler hose was laying next to catalytic converter - not secured. Heat from cc rubbed hole in tc hose and therefore could have ignited vehicle. Since I had parked in the garage, it also could have burned my other vehicle and our house. Mechanic replaced hose and secured. GMC will not acknowledge this is a problem since I did not take it to a dealer for repair and they cannot find any recall or bulletin on this problem.

- San Antonio, TX, USA

problem #1

Apr 302005

Envoy XL 4WD 6-cyl

  • Automatic transmission
  • 48,000 miles
Our Envoy service engine soon light came on and then our Envoy would not go past second gear. We took to GMC and was told that the transmission had to be replaced. They stated that the upper coolant line had been touching catalytic converter and caused all fluid to leak out causing the transmission to fail. We saw no fluids in driveway or smelled any strange odors.

- Ft Thomas , KY, USA

Not what you are looking for?