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:
76,220 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 drivetrain problems

drivetrain problem

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2003 GMC Envoy XL Owner Comments

problem #5

Nov 262013

Envoy XL

  • miles


This is the second occurrence of an issue with the vehicles manual switch for 2hi, AWD,4hi,4low. The dealer I bought the used vehicle from fixed the issue right after purchase and I'm having another problem with the switch. I try to select anything besides 2hi and the selector will just continue to blink on the selection without any action. Sometimes the service 4WD will illuminate on the dash. This seems like a frequent occurrence/complaint of other Envoy owners online.

- Grand Ledge, MI, USA

problem #4

Feb 032012

Envoy XL 6-cyl

  • 132,100 miles
One of the oil cooler line on my 2003 GMC Envoy is cracked and leaking transmission fluid on the cataylic converter. This is a serious fire hazard due to the extremely high temperature of the converter during normal operations.

- Huntsville, AL, USA

problem #3

Feb 232009

Envoy XL

  • 143,000 miles
My front differential started to seize up while driving on a major highway. My car would made a grunting noise and slowed to almost a complete stop, good thing it was early morning and the traffic was not heavy. A car or truck could of easily ran into my bumper causing me serious injury or death. I called the repair place right away and they got me in immediately. The diagnosis was the front differential needs to be replaced.

- Lima, OH, USA

problem #2

Jul 252002

Envoy XL

  • 106,000 miles
Vehicle was traveling a 65mph with no visible signs of trouble. The vehicle's PCM failed and the vehicle coasted to a stop and would not start. The PCM was replaced by the dealer and reprogrammed.

- Altadena, CA, USA

problem #1

Apr 012005

Envoy XL

  • miles
Complaint regarding the transmission on 2003 GMC Envoy XL.

- Dallas, TX, USA

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