GMC Envoy jerking problems

Filed Apr 22, 2026 · Steering, Suspension · MO

When starting the vehicle it turns over as if it wasn't going to start then it starts then put it in drive and it revs up without moving seems like its going to to pull out but barely moves while driving down the highway in curves it p pulls tords traffic like real hard my drivers side mirror hit someone On a corner because of the suspension the going up and down hill it almost put me in the ditch because of jerking

Filed May 5, 2015 · Engine · 87,000 miles · IL · crash · 1 injury

When backing the vehicle to leave a local restaurant, driver struck vehicle behind her. This happened so quickly that it was unknown to the driver how the vehicle traveled so quickly that driver had not even had a chance to turn the steering wheel to avoid striking the other vehicle. Driver placed vehicle in drive to pull over to assess the damage. When placed into drive, the vehicle lurched forward and continued to accelerate despite the brakes being applied. The vehicle struck a brick restaurant. Damage was also done to the interior bathroom of the facility and the business had to close to assure safety of it's staff/customers. Witness states the vehicle was obviously lurching and appeared to have a mechanical problem. The driver's foot bounced off of the brake pedal on impact lodging it underneath the brake pedal. It was also noted that neither front airbags did deploy. Driver did not seek medical attention however driver's foot was badly bruised.

Filed Nov 9, 2012 · Electrical, Fuel system · 90,000 miles · WI

Headlights began to dim, then brighten repeatedly, as to appear to be "flashing" other drivers. Shortly after, the oil pressure gauge malfunctioned. After the oil pressure gauge, a few days later the battery gauge malfunctioned. A few weeks later, the gas gauge stopped working right. Now, the engine continuously jerks, like it is missing due to lack of fuel. Contacted gmc on 11-09-2012. No solution.

Filed Oct 9, 2012 · Engine, Transmission · 138,000 miles · VA

Without any warning/indication [nothing light up on dashboard]; the car started jerking & slowing down. It sounded like rocks was rolling around under the hound of the car. I pressed the onstar button [which the car has been monitored by for the entire time of ownership, and all reports have always been engine/drivetrain/transmission good] and the was told there was and engine misfire. All maintenance has been kept up to date; and again the car monitored by onstar and never have I received a bad report. I don't understand how/why something like this could happen w/o any warning! I tried working with the local dealership; gmc financing office ~ and nothing!! This car is paid for & I cant afford the repair cost associated with it. This has to be some sort of defect!!!!!!!!!!

Filed Sep 17, 2012 · Fuel system · 155,000 miles · NC

I was driving my 2005 gmc envoy through a parking lot when the engine failed, causing the car to jerk and come to a sudden and complete halt. The gas needle suddenly registered on empty (although there was fuel in the tank) but the SUV wouldn't restart so I had it towed. Per the independent mechanic's diagnostics, the fuel sending unit was bad, which caused the car to stall. In addition to that, the fuel level sensor was bad and required replacement along with the tank. Gmc had direct mailed me a letter several months prior regarding a fuel system issue; in that letter, gmc offered to pick up 50% of the costs of repairs. I contacted customer service to get information about the process and to confirm that it would be honored prior to towing the vehicle to the dealership, which I reiterated several times. During that call, I provided the VIN, mileage and a description of the problem per the independent mechanic. Gmc customer service bridged in the local dealership, who agreed that the work could be done within a day's time. Neither provided any caveats to honoring the "special coverage" offer. Based on our verbal agreement, I towed the car to the dealership who later agreed the fuel level sensor failed but stated the sending unit and tank weren't in need of repair as they'd put in 5 gallons of gas and started the engine. They also provided an estimate of $1150 for all of the work with the expectation that I'd pay 100% of the cost. After several calls/escalations, gmc refuses to pay any portion of any repairs not because the system wasn't faulty, but because my mileage exceeded their 120,000 mile "special coverage" limit (which was only disclosed after multiple calls). Gmc has shown no regard towards the safety hazard the faulty system presents to my life nor my passengers' lives or any unsuspecting motorists traveling the same course should the SUV stall again.

Filed Jan 15, 2012 · Brakes, Driver assistance · TX

While driving around town, I hear a noise, that sounded like a flat. The truck began to slow down on its own, without me applying the breakes. I managed to get the truck over to the side of the road. The service stabltrk light wa on, the brakes locked up. I had it towed to the dealer who did 1400 dollars of work on it , but stated the could not get it to duplicate my complaint. 7 days later it repeated the same thing, I had it towed to the dealer. This time they told me that I had contaminated brake fluid. I was upset, and felt I was bing jerked around. I had it towed home. Had another machanic test the brake fluid, needless to say, it showed to have the normal amount of contamination from routine driving. He also could not get it to repeat the problem, I am assuming no codes came up this time either. I have drivien it for one month with out a problem, untill this morning, I went to the store, about 1/2 mile from my home, and the same problem occured. After leaving the engine off for appro. 30 min, it became drivable again.

Filed Dec 9, 2008 · Brakes, Transmission · 57,000 miles · FL

Bought "certified used" envoy in october of 07. Transmission completely stopped at 57k miles 3 months after purchase. Check engine light comes on and off every couple days(have video, but sandy sansing of pensacola florida says there nothing wrong) vehicle jerks at stops and starts. After 3 trips to dealership w/ "nothing wrong" they finally decided that a o2 sensor was bad at 71k. Envoy had been back in the shop at a cost of 80.00 bucks twice since then because of the "check engine" light and the brakes are failing, the "ABS brake" light doesn't come on so they say it cant be the brakes. When trying to stop the brakes stop working and a second later they will catch and begin to stop vehicle, as if the brake system is obstructed and skips a few times. The check engine light flashes for those few seconds but doesn't stay on long and they say it isn't throwing any codes. Problem doesn't happen everyday so the dealership has said its a unfounded problem. The thermostats assembly with other parts have been replaced. Have all receipts and dates that I've taken this pos into the dealership. I will never buy another gmc vehicle. I have a 10 year old pickup truck also and has only been in the shop once. There's no excuse that we are driving these (expensive) unsafe vehicles!!

Filed Feb 7, 2008 · Transmission · 85,000 miles · IL

Normal driving conditions. Exiting from parking lot, heard loud bang, car jerked, came to a complete stop. Limped car home(1/2 mile). Upon further inspection 2002 gmc envoy had no reverse gear. Researching online shows 4l60e transmission, reaction sunshell & reaction sungears prematurely fail due to substandard parts.

Filed Jan 21, 2007 · Electrical · 57,568 miles · MO

Speedometer stared moving up and down with the speed of the vehicle but would have a jerky movement now the speedometer no longer resets to zero. At a full stop the speedometer will read from 40 to 70 MPH and at speeds a low as 40 MPH the speedometer will report speeds up to a 120 MPH. This problem does not all the driver to accurately judge the speed of the vehicle. As of this complaint I have not fixed the problem but all indications from other people is that the instrument cluster will have to be replaced or reconditioned.

Filed Nov 17, 2006 · Transmission · 50,102 miles · NV

Dt*: the contact stated while driving 30 MPH, the vehicle shuddered while braking to a stop and accelerating from a stop. While braking, the vehicle also jerked forward slightly as if trying to accelerate. The vehicle was then parked and shut off. When the vehicle was restarted and shifted into reverse, the vehicle did not move. The transmission was then shifted into drive, but again did not move. A service dealer was notified, but the vehicle was not taken in for service.