GMC Envoy transmission failure problems

Filed Jan 10, 2020 · Driver assistance, Electrical · 140,000 miles · IL

Severe electrical problems in vehicle,everything stopped working on it!!!! Vehicle shut down in a middle of a busy intersection, I replaced transmission 2 times as well!!!!had no lights,turning signals,no heat heat then the vehicle just stopped completely nothing just dead!!! Had battery checked wasnt that!!!! They told me electrical issues not sure what only had vehicle 3 months!!! I had had 2004 trailer blazer before this same issues!!!! Only had it 2 months and transmission went out pd that then once again electrical problems!!!!!

Filed Nov 21, 2019 · Transmission · 131,000 miles · DE

Tl* the contact owns a 2006 gmc envoy. While accelerating from an intersection, the vehicle failed to accelerate. The contact managed to veer to the shoulder of the road. When the vehicle was turned off and restarted, it failed to resume normal operation. The vehicle was towed to an independent mechanic who diagnosed that the transmission failed and needed to be replaced. The vehicle was not repaired. The dealer and manufacturer were not made aware of the failure. The failure mileage was approximately 131,000.

Filed Jul 24, 2018 · Engine · 230,000 miles · GA

Gradual coolant loss over time and no evidence of leak. This was due to a crack in the cylinder head that gm admitted to knowing about in tsb 06-06-01-019b on june 12, 2007). Coolant was slowly leaking into the oil, but was unnoticeable until it started to affect oil pressure from the oil becoming slushy and ruining the engine. This ended up resulting in resulted in the low engine oil light suddenly coming on and the car to stop running on a highway. The engine started steaming and the car was overheating. Mechanic is now saying the engine is in an unoperable shape due to driving with continued low oil pressure (no light had appeared until day of incident). Gm had sent out a bulletin admitting to the issue but did nothing to notify their customers. They should immediately recall the affected vehicles and/or pay for a replacement. I had just put in a new transmission to my gmc envoy, expecting it to last for years.

Filed Apr 16, 2016 · Body, Electrical · 75 miles · ND

I was in the highway tail lights weren't working in was headed to idaho due to that im still in north dakota also like a month ago I was pulled over in the city for no back lights it's happen 4 or 5 times two on a 15 hour road trip.tailgate has open twice once in city and on highway now it doesn't shut at all its been like that for 5 months now and it started to not want to open or close the roof part as well it sound as if its jam.I worry about my safety and public as well. Just paid over 2400.00 for rebuilding trany,power steering,and my gear shift as well it would not shift it snap off.transmission went out 6 hours before I got to my destination.it was towed to a trany shop around nov.12/2015 picked up feb.23/2016 hoping they would fix all the rest of defects it has. You name it this envoy has it or has had it from headlights bulb being replaced every so often and melting were light bulb goes, A/C and heater don't work properly driver side is hot and passenger cold or vice-versa. The passenger back sit I would not know.midwindow doesn't work it doesn't roll up or down or that latch that comes down to haul stuff as well it doesn't work. When I roll my power windows my headlight and engine idle powers goes down as if there is an electrical problem.I've invested on this envoy a week later when I drove it out of the yard. I have all my receipts from professional mechanics.its been a bad experience.I hope my trany doesn't go out after I'm done fix all this other problems. I read after someone had rebuild the trany 13 months later he had the same problem again with his envoy. It's not safe to operate a vehicle with so many issues especialy with no back lights going from good to not working.every time I have to be checking if I have my rear lights are working or in front and also my front low light I have no visibility what so ever.they are so dull.

Filed Jun 14, 2011 · Transmission · 34,000 miles · NY

Tl* the contact owns a 2005 gmc envoy. The contact was driving 30 MPH when the vehicle stalled without warning and would not restart. The vehicle was then towed to a local mechanic who inspected the vehicle and informed the contact that the transmission needed to be replaced. The transmission was replaced at the contact's expense. A letter was sent to the manufacturer who in return, called the contact and offered no assistance. The failure mileage was 34,000. Updated 07/08/11 *bf updated 07/18/11

Filed Jun 14, 2011 · Transmission · 105,151 miles · LA

6/13/2011 vehicle taken to gmc service for transmission flush and filter change. Returning home same afternoon vehicle transmission started slipping and stopped moving. After repeated attempts to move vehicle it was towed to local dealership. Service manager stated that probably broken hard parts inside the transmission were to blame. Rebuild trans. In range of 2$k, replacement $3k. Spoke with gmc customer service, no explanation why transmission failed or assist to replace transmission. This vehicle has 105,151 miles on odometer.

Filed May 22, 2010 · Transmission · 95,000 miles · OH

The transmission failed in my 2003 gmc envoy with approx 95,000 miles. While driving down the road I went to pass a slow moving vehicle. As the transmission down shifted there was a "bang" so I pulled over to look under the truck, and made sure nothing had fallen off. I got back in the s.u.v. And made my way back home with no problem. The next day when I went to back out of my drive way there was no reverse. I called a local gm dealership and was told that the problem appears to the sunshell gear. According to multiple post online, seems to be a common failure among envoy's and trailblazer. I checked the fluid and it appears to be fine, not low, not burnt, and still red and clean.

Filed Sep 5, 2009 · Transmission · 153,000 miles · NY · fire

I have a 2002 gmc envoy which has a destroyed transmission due to the well known (but unbeknownst to me) failure of the transmission cooling lines. This is a clear design flaw, as the routing is close to the catalyst. Besides the obvious safety concerns of an on the road transmission failure, the location makes a fire likely. The design flaw is documented in tsb pt-4722. I believe these vehicles should be recalled.

Filed Aug 10, 2009 · Transmission · 72,456 miles · PA

First problem occurred in 2008, driving to work in 2003 gmc envoy slt (original owner) heard clunking noise when downshifting. Took car in to shop for repair (just over 50k miles so out of warranty). Shop explained that the transmission needed to be replaced $4000 with one year warranty. Since I was planning on driving cross country decided to do the repair. One year later, driving and trying to accelerate on a ramp to find SUV stuck in second gear and wouldn't accelerate while RPM kept going up. Also heard clunking when downshifting. Pulled over and tried to get gears to shift by slowing down and speeding up (to get RPM to drop). Drove car to dealer who stated I needed a new transmission (again). Dealer removed transmission and "found input bushing in pump bad. And reverse drum. And had heavy metal contamination". When asked why this is my third transmission in six years the service agent said "bad luck". Both replacement transmissions were rebuilds. The current transmission is not under warranty.

Filed Jul 31, 2009 · Transmission · 80,700 miles · CT

I have a 2003 gmc envoy, 80,700 miles original owner. While merging onto highway transmission locked in 2nd gear. Engine RPM's increased to 5,000 speed dropped to 20 MPH creating a dangerous situation with oncoming traffic. This happened without warning or any indication of a problem. I had vehicle towed to gmc dealer, asked if there were any known problems with gmc envoy transmissions and was told there were none. The diagnosis, my transmission exploded internally with a failure of the sun shell gear and torque converter. Transmission could not be rebuilt and the cost of installing a re manufactured transmission was $3700! Gm has been having these transmission failures since 2002 with no acknowledgment of liability!