2026 Chevrolet Tahoe problems, recalls and owner complaints

The contact owns a 2026 Chevrolet Tahoe. The contact stated that while his wife was driving 45 MPH, the brakes failed to engage while depressing the brake pedal. The contact's wife pulled into a parking lot, shut off the vehicle, and allowed the vehicle to coast in the parking lot until the vehicle came to a complete stop. Due to the failure, the vehicle was towed to a dealer but was not diagnosed or repaired. The failure mileage was 4,873.

At approximately 4,200 miles, the engine on my 2026 Chevrolet Tahoe High Country equipped with the 6.2L V8 suddenly shut off while the vehicle was stopped at a traffic light. There were no warning lights, messages, unusual noises, or other symptoms prior to the failure. The vehicle would not restart and had to be towed to an authorized Chevrolet dealership. The dealership initially suspected a camshaft/lifter or related engine issue and performed diagnostic and mechanical testing. The dealer also opened a case with General Motors. GM subsequently directed the dealership to perform an ECM…

While driving the vehicle at highway speeds the vehicle starts to lurch or randomly lose power. Eventually, within a few minutes, the lurching gets worse and the check engine light starts flashing. In a GM vehicle, a flashing check engine light is critical engine failure. After pulling the vehicle to the side of the road, the check engine light stops flashing and stays on constantly. After about 10-15 minutes, the check engine light turns off completely. The GM dealership can read the history and says it's P0300 error code for General Engine Misfire in cylinder #6. GM warranty refuses to fix…

Driving on the interstate and vehicle started slowing down then abruptly stopped. We were able to get onto the shoulder of the road. The gear would not stay in drive mode continuing to slip out of drive and into park. We made it to a dealership in Knoxville tn where we had to leave it..

Engine started "ticking" for a bit. Then sounded like marbles were in the engine. Loss of power and engine light came on. Dealer says my 6.2 engine failed and new one needed. Less than 9000 well cared for miles!

Driving on the Highway the Engine failed at highway speeds and the Tahoe experienced a complete shutdown, we could not restart the vehicle nor shift to neutral. We had the vehicle towed and was told by the dealer that it needs a engine replacement at 14,000 miles.

The contact owns a 2026 Chevrolet Tahoe. The contact stated that two hours after parking the vehicle in the garage and turning off the vehicle, there was excessive heat coming from the vehicle, and the vehicle was extremely hot to the touch above the wheel well. Due to the heat coming from the vehicle, the contact stated that it was difficult to breathe while inside the garage. The vehicle was taken to the local dealer, but no failure was found with the vehicle. Later, while driving the vehicle, the vehicle lost power, and the check engine warning light was illuminated. The vehicle was driven…

I was on the interstate. Initially I heard a faint rattling sound. I turned off the radio and AC to listen more closely; the sound was not audible. But then traffic came to a standstill. As I slowed, that barely audible noise began to sound like something boiling in the engine. The temperature and pressure gages were all in normal operating ranges. I pulled to the shoulder of the interstate and checked under the hood. I noticed a distinctive squeaking sound although the fan belt was intacted in running true. There was no sign of any fluid loss in the engine compartment or underneath the…

The contact owns a 2026 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the engine seized. No warning lights were illuminated. The contact stated that while attempting to restart the vehicle, the vehicle failed to start. The vehicle was towed to the dealer, where it was diagnosed with engine and radiator failure. The contact was informed that the engine and the radiator needed to be replaced. The vehicle was not repaired. The contact was informed that the repair was under warranty, but the parts were unavailable. The contact stated that the failure had occurred…

The contact owns a 2026 Chevrolet Tahoe. The contact stated that after making a long-distance trip, the check engine warning light illuminated. Additionally, the side mirrors were moving independently, and the vehicle failed to start after several attempts. The vehicle eventually restarted the following day, and the contact stated that the check engine warning light turned on the drive to the residence. The vehicle was taken to a dealer where a code reader was used to diagnose the vehicle. The contact was informed that since the check engine warning light was off, the dealer was unable to…

Control algorithm issue. Unexpected acceleration. Not confirmed by dealer. I experienced it twice. Google Gemini sems to know about this. No inspections performed. No warnings. There is a safety issue with the 2026 Chevrolet Tahoe adaptive cruise control. My observation: On a previous drive, I used the adaptive cruise control with it set at highway speed. I disengaged it as I got off the highway using the brake pedal and arrived at my destination via city streets. I turned the vehicle off, exited and locked it. Later, I re-entered the vehicle, started it and began slow speed maneuvering…

Service break assist light came on 2 days after getting the brand new vehicle. They ended up needing to replace the break Master cylinder