Chevrolet Tahoe sudden acceleration problems

Filed Nov 6, 2026 · Electrical · MN

"While operating my 2023 Chevrolet Tahoe at approximately 77,000 miles, the vehicle experienced a sudden, catastrophic electrical and mechanical failure. While I was actively pressing the brake pedal to slow down, the vehicle experienced sudden unintended acceleration and began to accelerate on its own. Simultaneously, the driver’s instrument cluster and the center dashboard infotainment screens went completely black and blank, resulting in a total loss of all critical driver information, gauges, and electronic systems. The vehicle fought against my braking efforts, creating an extreme crash and life-safety hazard. The vehicle is currently grounded and undrivable at a certified Chevrolet dealership. General Motors Corporate has opened an active investigation under Case Number 117203694. I am filing this report due to the severe and immediate safety threat posed by this total system failure.

Filed Jul 13, 2026 · Engine, Transmission · 181,000 miles · CO

The contact owns a 2017 Chevrolet Tahoe. The contact stated that while driving approximately 15 MPH uphill in the mountains, the transmission started slipping, followed by a loud banging sound. The contact stated that later, while fishing, there was an abnormal metallic sound like BBs hitting a tin can coming from the vehicle. The contact stated that previously, while driving at an undisclosed speed, the vehicle lunged forward, followed by grinding and banging sounds. There was no indication of a fluid leak coming from the vehicle. The contact stated that shortly afterwards, the vehicle stalled. The vehicle was restarted and resumed normal operation. No warning lights were illuminated. An unrelated warning light for the oxygen sensor was illuminated. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and informed that there was no recall coverage or assistance available for the vehicle. The manufacturer referred the owner to the federal safety agency Hotline for assistance. The failure mileage was approximately 181,000.

Filed Apr 13, 2026 · Acceleration, Steering · KY

Car got stuck between gears while driving on the road. The vehicle accelerated by itself almost causing me to crash. I immediately pulled over into a business and put the truck in park. The car stayed on. It turned on and off but would not shift gears. Would not go from park to reverse or drive. And unfortunately the “warranty” only cover 60k miles. Conveniently right before this well known issue goes out. The main issue was Pressure Control Solenoid C Stuck On. This issue is an issue many people are having and since it is a drivetrain issue this can affect many lives while on the road.

Filed Sep 26, 2020 · Transmission · 96,000 miles · MA

On september 12, 2020 vehicle had a rough idle and tried to stall at the first stop made after car sat for a few hours car did not stall completely. At the second stop at a red light, the vehicle stalled, was put into park and re started. Every time the vehicle came to an idle it stalled for the duration of the trip home. Every time the vehicle stalled it shut off very violently and jumped forward. This would have caused an accident had there been a vehicle in front of me. It felt as if I was rear ended. Vehicle sat over night and was test driven the next day and problem seemed to go away. Idle was a little rough and the vehicle also ran slightly rough while driving. At this point no check engine or dashboard lights were on and all gauges seemed normal. Car was driven almost every day as normal, approximately 60 miles a day 4 days a week with no obvious problems and only a slightly noticeable rough idle and rough drive. Today, september 26, 2020, two weeks later, the vehicle was driven 30 miles after sitting over night and sat for 8 hours. Within 2 miles of driving the vehicle after sitting for the 8 hours, the vehicle was having severe problems shifting into the appropriate gear and the RPM was all over the place. The speed of the vehicle was extremely difficult to control and easily could have caused an accident. The vehicle was able to go approximately 2 more miles. After the vehicle came to a stop at a red light, I tried to accelerate and the vehicle did not move forward. The RPM was going up, the engine was running, and the vehicle was in drive but acted like it was in neutral. I tried putting the vehicle in park and back into drive with no success. I also tried turning the vehicle off and re starting it with no success. The vehicle blocked traffic and was in an unsafe location until a tow truck came and moved the vehicle.

Filed Sep 25, 2017 · Brakes · GA

As I was sitting in the vehicle in park, I placed my foot on the brake and noticed that the brake assist had activated while in park. I was unable to push the petal down. I was able to move the shifter into drive with my foot on the brake, but the vehicle immediately plunged forward. As I continued to try and depress the brake petal, the vehicle finally slowed to a stop. Before I could get off the road and out of traffic, the brake assist continued to be locked up and there was no brakes if I shifted into reverse. I was extremely concerned for mine and my children's safety as this could have caused a very serious accident. The brakes did not stop the vehicle and were defective due to the vacuum pump "going out". The vehicle is only 2 years old and has 49k miles.

Filed Jul 31, 2017 · Transmission · 190,000 miles · CA

While driving with my family in the car and without warning, the car stopped moving. In the middle of an intersection it was as if it was in neutral. This was terrifying, then all of a sudden it felt like I was hit from behind and the car popped into gear and shot forward. I now have no reverse and unsure which gears might work, as I immediately got it home. I am a disabled veteran on a limited income and no am facing possibly huge expenses for transmission repairs that I now have read have been complaints on my car for years! I can't understand how gm/chevrolet doesn't see transmission issues as a safety problem. This transmission has had way too many complaints. Having no warning and the inability to be able to move the car in an intersection could have been catastrophic!! Alos when calling a local dealership they should be better informed about any tsb's as to inform consumers. I just thank god my family is safe, however am now out of a car. Thanks general motors/chevrolet, looks like youre losing another loyal customer.

Filed Oct 27, 2016 · Airbags, Engine · 8,680 miles · TX

Drive train vibration since taking dealer delivery nov/december 2015 @ 2830 miles air bag notice not to ride in front passenger seat 10/27/2016 1st occurence of unintended acceleration oct 27, 2015 @ 8680 miles

Filed Sep 26, 2016 · Acceleration, Airbags · 18,514 miles · MT · crash

Driving on the interstate (I-90 mt), on cruise control, braking for a car in front going slower, found that no braking occurred, sudden acceleration to 90 MPH, tried to change gears, turn off engine, pump brakes without results, then glancing blow to vehicle in front, no airbags deployed, bailed off road into burrow pit, eventually slowed. See karl tyler workorder #342136.

Filed Oct 28, 2015 · Brakes, Engine · 60,000 miles · MI · fire

Tl* the contact owns a 2000 chevrolet tahoe. The contact stated that while attempting to come to a complete stop, the ABS system disengaged causing the vehicle to lunge forward. The contact stated that the ABS system would re-engage if the brake pedal was released and then depressed. The vehicle was taken to the dealer but the failure was unable to be duplicated. The vehicle was not repaired. The contact also stated that while driving at various speeds, there would be an abnormal noise coming from the vehicle. The contact stated that the vehicle would veer to the left. The vehicle was taken to the dealer where it was diagnosed that the hub bearing assembly on the drivers side of the vehicle needed to be replaced. The vehicle was repaired, however the failure recurred on three separate occasions. The contact stated that while driving at various speeds for a period of time and then turning off the vehicle, a burning oil odor would come from the vehicle. The contact stated that while having the vehicle serviced by an independent mechanic, it was informed that there was engine oil leaking from the main seal and needed to be repaired. The vehicle was repaired, however the failure persisted. The manufacturer was not made aware of the failure. The failure mileage was 60,000.

Filed Oct 14, 2014 · Acceleration, Engine · FL

2013 chevrolet tahoe. Representative from the city writes in regards to problems with police fleet. *tgw the consumer stated after the new engine calibrations were installed on seven vehicles, less than 24 hours later, the problem continued, along with additional issues and problems that were never experienced before. Specifically, the vehicles lunged forward aggressively after coming to a stop. Gm eventually removed the calibrations. The issue with the vehicles stalling, lack of power, idle surging and hesitation upon acceleration, continued.