Two problems related to side/rear glass have been reported for the 2000 GMC Sierra. The most recently reported issues are listed below.
Rear glass frame cracked from factory and replacement failed twice and had to be replaced with flat glass not the sliding glass I ordered from the factory . Both side quarter windows had wind noise and had to be replaced. S.
Consumer stated the vehicle was in the repair shop on 3 occasions for a leak in the rear window.