One problem related to car will not start has been reported for the 2002 GMC Envoy. The most recently reported issues are listed below.
In oct. 2003, I was driving to work in rush hour traffic and upon coming to a traffic light my Envoy stalled out and instrument panel went blank; car would not restart & message displayed to service engine & contact onstar, I was unable to get Envoy off of road & sat there for 45 minutes waiting for tow truck to tow vehicle to royal Oldsmobile where they said they replaced computer system; since that time in Jan 2004 vehicle was in garage & would not start; vehicle was pushed out of garage & battery was recharged with jumper cables; vehicle was taken to royal Oldsmobile & I was told that battery was leaking & that they had replaced battery; this vehicle has been the most unreliable vehicle I have ever had; I am leasing this Envoy & I am afraid it will stall out again; also last summer without warning, the air conditioning just quit working while driving on vacation; after Envoy was cut off & engine cooled, then air conditioning started working again; this is a leased vehicle & I want to know who I can talk to about turning vehicle in early & also what information is available about Envoy stalling out without warning.