2021 CHEVROLET TAHOE Complaints

It’s happened about 10 times since I’ve owned the car but the dealer can’t recreate it so we are out of luck. The vehicle accelerates on its own. Scenario 1…with constant light steady acceleration, it will lurch forward like I’ve stomped on the accelerator a bit, for about a second then go back to my normal input. Scenario 2, same lurch but this time while coming to a stop at a stop sign WITH MY FOOT ON THE BRAKE PEDAL ONLY. scenario 3…I’ve been using the adaptive cruise control and had it disengaged by braking, coming to a stop, then parking and turning the vehicle off. Then after getting back in and starting up and slowly pulling forward, the cruise control suddenly and abruptly renegages and attempts to accelerate to the last demanded setpoint. Image this scenario pulling out of a spot at a crowded gas station with pedestrians. I almost ran someone the hell over just now at the gas station and I’ve had enough. The dealer won’t do anything and when I called Chevy engineering they put zero effort into it, it was a 20 second phone call stating if it can’t be reproduced at the dealer there’s nothing they can do. This is absolutely completely 100% dangerous and unacceptable

In September 2024, our vehicle was unable to be start with engine light on. We were unable to get the car into drive or neutral. We were forced to pay out of pocket to have the car towed to dealer, which it needed to be dragged onto the tow truck. Upon inspection at the dealership we were told it was the fuel pump control module that failed and needed to be replaced. They searched recalls and found none on our vehicle but did comment they are replacing these a lot on same type of vehicle. The part was out of stock & backordered likely due to multiple issues, and took 2 weeks to arrive. Reviewing online many have experienced same issue while driving, luckily, we were not. There is an open recall on this part for many models of the same year and time, but for one reason or another our vehicle is not part of that recall #21V739000 / GM #N212332040. The replacement was covered under warranty but does not cover the tow of almost $300.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while reversing out of the driveway, the vehicle suddenly lost acceleration and the message to restart the vehicle was displayed on the instrument panel. While attempting to restart the vehicle, the vehicle failed to restart and another message that the conditions were not met to restart the vehicle was displayed. The contact contacted OnStar to assist with starting the vehicle. The vehicle was started; however, the engine failed to remain running. The vehicle was towed to the dealer who informed the contact that the VIN was included in NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline) and completed the recall repair. The contact stated that approximately two years later after the recall repair was performed, the failure reoccurred while the vehicle was idling. The message to restart the vehicle was displayed on the instrument panel; however, while attempting to start the vehicle, the started sputtering. The vehicle was towed to the same dealer and the contact was informed that the vehicle needed to be repaired under the recall again. The dealer informed the contact that the remedy was no longer covered under the recall, but the repair would be covered under warranty. The dealer informed the contact that the part was on back order and the vehicle would be repaired once parts became available. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case. The failure mileage was 8,345.

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving 20 MPH, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the fuel pump control module. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 37,000. The VIN was not available.

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the vehicle stalled. The vehicle was towed to the dealer where it was diagnosed with fuel pump control module failure. The contact was informed that the fuel pump control module needed to be replaced. The vehicle was not repaired. The contact stated that the fuel pump control module was recently replaced prior to the failure reoccurring. In addition, the contact stated that the fuel pump control module was also replaced in 2022. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 20,000.

Glow plug issue. Glow plug broke off or appeared burnt when dealership removed. Check engine light illuminated.

Engine began to stall while driving or would not restart after parking. Happened one time while driving on highway [XXX]. Towed to dealer. Same fuel pump issue as recall N212332040 however that build date window closed March 4 2021 and my Tahoe was built in June 2021. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Driving on the I-95 I abruptly lost power driving in the left lane, RPM dropped all the way down and speed was rapidly decreasing. I had to pull over on the shoulder in the most safe manner possible for myself and other drivers on the road; but it was not without any risk. The body of the car was rattling on my way to the shoulder and the car shut off before I could put the car in Park in a safe place. With my hazard lights on I tried restarting the car but the enging would not turnover, the starter would run and the car would rattle about all whilst creating a traffic jam. Once i noticed the engine light and yielded to the car's inabiltiy to start up, we got the attention of a FHP State trooper who called in a Tow truck for us. Getting te car onto the tow truck in traffic also increased the risk associated for everyone involved. Aftert succesfully oading the car, which was no smooth task as the car could not shift into Neutral; we took the car to my local Firestone. After a diagnostic test done the following morning, we were notified of a fuel pump issue that has been on the recall list for my vehicle, but NOT associated with my VIN.

Stopped for gas, then proceeded to leave store, the check engine light came on, and car immediately shut off while on the highway going ~25mph. Car would not turn back on, and then lights for fuel machine error started coming on. Car sat there trying to turn on, lights off, and then would say push start button, but nothing happened. Car began to shake and continued to try to turn on, yet nothing happened. Car was towed to home, sat for an hour and then started again, check engine light remains on.

Several times over the last month, or so, my 2021 Tahoe has hesitated to accelerate while driving. On 7/31/2024 the vehicle was in park, turned on when the vehicle began idling VERY hard, shaking the entire vehicle. The engine was turned off and restarted approximately 10min later. I began driving when the vehicle began shaking, the engine light came on, and the engine then turned OFF while in drive, actively driving down the road (with my child in the vehicle). I coasted into a parking lot and attempted to restart the engine several times, without luck. After sitting for approximately 45min the engine restarted, and I was able to get home. The engine stopped and restarted several more times that evening, without issue. The engine light turned off. The following day the vehicle ran without issue, no engine light on. We took the Tahoe to Total Performance Repair shop where they ran a diagnostic scan of warning light history. The diagnostic scan came back with codes P023F and P129F; fuel pump issues. There is currently a recall for fuel pump module failure on some 2021 Chevy Tahoe vehicles. My specific vehicle is not included in the recall but is experiencing the recalled issues.