*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
The water pump failed. Platinum Chevrolet has the old one as they have replaced it. I was driving in [XXX] on a crowded street when I had to quickly pull over because of a terrible noise and the smell of leaking coolant. It made it dangerous for me to get to a parking spot in traffic without warning. There were no warning symptoms. Had to have it towed to Platinum Chevrolet in Terrell, Texas, which did the inspection and water pump replacement. $1600.00. No clue what caused it other than bad workmanship. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Sep 22, 2026Electrical system
I got in my vehicle and turned it on. Once on, it asked me to roll down my passenger side window and roll it back up. I thought that was odd, but did so. My vehicle had completely reset. The clocks were not correct and none of our controls were set. I reset everything, but thought that was weird. A few days later, my husband and son were coming home from a 5-hour trip and as they were turning into our driveway, thank God they were home, the vehicle completely turned off and shut down. The brakes locked up and they came to a complete stop. We lived on a really busy road and this could have been extremely dangerous. My husband quickly turned the vehicle back on and parked in the driveway, but…
Dec 6, 2025Engine
The 6.2L L87 V8 engine in my 2020 Chevrolet Tahoe Premier RST suffered a catastrophic internal component failure while operating. The engine experienced a sudden, severe internal mechanical breakdown involving the crankshaft or connecting rod bearings, completely disabling the powertrain.This failure causes an immediate and dangerous loss of vehicle propulsion, creating a severe safety hazard on public roads.General Motors has already issued Safety Recall N252494001 (NHTSA Campaign 24V924000) for identical L87 engine bearing failures, but has arbitrarily limited the scope to 2021â2024 model years. My 2020 vehicle uses the exact same L87 engine family and has suffered the exact same…
Apr 18, 2026Power train
Transmission valve , vehicle shutter, and eventually complete loss of power and failure. Transmission had to be replaced as vehicle was out of warranty.
Jan 12, 2026Engine
The dealership where I get my 2020 Chevy Tahoe service, stated that there is a recall for the water pump for the 2020 Chevy Tahoe, due to a manufactory defect, causing the water pump to leak. On XXX, mileage 62,777, I had to replace my water pump for that same reason, but my vehicle was not part of the recall; therefore, paying for a placement water pump myself. The dealership is Musson Patout Automotive Group/GMC, 214 West Hwy 90 Frontage Road, New Iberia, LA 70560, [XXX]. I am requesting that my vehicle be added to the recall list, due to this oversite. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Mar 31, 2026Power train
My transmission failed, yes it is available for inspection. The failure occurred without warning. I was driving my truck on the highway, suddenly it began to hesitate and making a loud winding out noise. The truck was hesitate on going forward. Yes, I had the vehicle towed to Banks Chevy, I was told the torque converter blew metal shavings into the transmission and it was a common problem with these vehicles. No warning at all, I just had my oil changed at the dealership, it was running great, out of nowhere this happened.
Jun 15, 2026Power train
Chevrolet has a recall on some vehicles for a bad transmission valve body, but my vehicle isnât a part of the recall and Iâm having the exact same issues. Currently my only vehicle that I have to transport my 7 month old is a complete safety risk. My check engine light is on and the code its throwing is to replace transmission valve body assembly. My Tahoe is shifting very harshly when driving normally, it feels like it slams into gears causing the whole car to jerk. When sitting at a red light that turns green, Tahoe is slipping, barely wanting to move through an intersection with vehicles all around me. Iâve been advised to not drive my Tahoe at all because if I do I will certainly…
Jun 23, 2026Service brakes
Tahoe transmission failed with 103,000 miles⦠took to Chevrolet they confirmed, took to a transmission specialist they confirmed failure but they said the computer was throwing weird codes and they believe this has a factor in transmission issue. On the way home the brake system alert went off and the car would not go above 35 miles an hour ⦠I get this is a safety feature but it was dangerous in the location this occurred ans this car was not that old and does not have high miles to justify this type of issues
Dec 1, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
