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

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

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

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

Complaint regarding the transmission on 2003 GMC Envoy XL.

- Dallas, TX, USA