Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
SB-07-06-04-019A11/01/200810028831General motors: intermittent mil/ses/ dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-08 gm passengers cars/light duty trucks (incl. saturns). *pe06/01/2009

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
06/03/20091
 2006 gmc envoy denali purchased. beginning at about 10,000 miles the transmission would shift abruptly into 1st gear after the car had stopped moving. this does not happen every time but does happen often and when it does it feels as if the car has been hit from behind. dealer has not been able to duplicate the problem but states that other owners have reported the same problem. *tr
POWER TRAIN - AUTOMATIC TRANSMISSION
09/01/2008306/23/2006
 2006 envoy denali. consumer writes states gas needle stopped functioning *tgw the consumer stated the gas needle began to fluctuate in the beginning and since that time, the needle has been stuck on empty, and the engine light illuminated as a result. in march of 2009, when the consumer stared the vehicle, it sounded as if there was something metal tumbling around under the hood. upon inspection of the vehicle, it was determined the engine needed to be replaced. on june 10, 2010, the vehicle would not start and had to be towed to the dealer. an inspection revealed a starter was needed. also, an alignment was done and the rear brake light was replaced. on june 12, 2010, the vehicle would not come out of park. after 25 minutes and over 50 attempts, it finally came out of park. the consumer drove to the dealer, but they were unable to find a problem. september 2010, the consumer noticed the rear of the truck was sitting very low. the rear end air suspension needed to be replaced. the air condition randomly worked. there were times where the air would just start blowing and no buttons were pushed. also, the defroster stopped working. the consumer continued to experience problems with the vehicle not coming out of park. *jb
06/03/20061
 I have had my gmc envoy into the dealership on multiple occasions for a noise coming from the rear. i've been told that it is just a flaw in the design but it is a very annoying flaw. the noise is a constant squeal that only goes away if i take the vehicle out of overdrive. the dealership said from me not to drive the vehicle in overdrive because there wasn't anything they could do to fix it. as time goes on, the noise seems to be getting louder. *tr
07/01/2006100001
 2006 gmc envoy denali purchased 12/05. beginning at about 10,000 miles the transmission would shift abruptly into 1st gear after the car had stopped moving. this does not happen every time but when it does it feels as if the car has been hit from behind. dealer has not been able to duplicate the problem but states that other owners have reported the same problem. *tr
POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER
04/10/2007131186012/20/2005
 Tl*- the contact owns a 2006 gmc envoy denali. there was a vibration in the vehicle when the gas pedal was applied while traveling between 30 and 40 mph. the vehicle would also vibrate at any speed. it felt and sounded as if it needed to shift gears, as in a manual vehicle, but was in the wrong gear. it was involved in a crash in november 2006. two dealers stated that there was a technical service bulletin that referenced the failure, but there was nothing they could do to correct it. when engaging the brake the vehicle would move forward and a noise could be heard. the noise frequently occurred after a quick stop. this failure had occurred during the same period of time. the dealer diagnosed the failure, and stated they have repaired the noise, but it continued to occur. the current mileage was 14,000, and the failure mileage was 13,118.*ak