2024 Chevrolet Tahoe Powertrain & Transmission Problems

PICOSCOPE test passed on 2/3/2026 with mileage of 58061 at Everett Chevrolet, Benton, AR. On [XXX], while driving received an error code, no oil pressure and vehicle became disabled in the middle of the road. Tahoe was towed to Teeter Chevrolet in Malvern, AR. We were notified on Friday that the engine was bad and would need to be replaced. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2024 Chevrolet Tahoe. The contact stated that while driving approximately 55-60 MPH, the vehicle stalled. No warning lights were illuminated. The vehicle was taken to the local dealer 10 times and the dealer retrieved diagnostic trouble codes for the control module, body control module, rear parking assistance, loss of communication, and transmission solenoid. The vehicle was not repaired. While driving at an undisclosed speed, the vehicle shifted out of the intended gear and shifted into neutral. The vehicle then went into LIMP Mode. The manufacturer was contacted and opened a case. The failure mileage was approximately 30,837.

The contact owns a 2024 Chevrolet Tahoe. The contact stated that on four occasions while in reverse (R), the "Service Transmission" message was displayed, and the vehicle failed to reverse. The contact was able to shift into drive(D). The vehicle was taken to a dealer on four separate occasions, where it was diagnosed and determined that the transmission shifter had failed and needed to be replaced. The vehicle was repaired all four times, but the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was approximately 4,293.

My wife drove the 2024 Tahoe with 13,464 miles to Florida for a beach trip with the kids. The car stopped working while she was driving. The vehicle flashed and the automatic transmission wasn’t changing gears. She manually shifted the gears until arriving at a safe place. The dealer states it is the transmission valve body that needs replaced. The part is on back order and from what the dealer said being built as needed.

Brand new 2024 Z71 Tahoe at 11,000 miles had transmission failure due to the transmission valve body failing. No previous issues, has never driven long distance, has never towed anything. While in school drop off line was alerted and given an error message on screen stating “reduced acceleration, drive with caution” placing the vehicle in limp mode and check engine light came on.

My family and I were returning from vacation from Florida to our home state, North Carolina, when our new Tahoe with 5700 miles started to act strangely. We hit bad traffic leaving Florida so there was plenty of stop and go type maneuvers. At one point, the vehicle turned itself off and put itself in neutral while we were thankfully going a slower speed due to traffic. I was able to get off the shoulder near the [XXX] and restart the car. It ran fine after restart until it started making a clanging type noise from the engine bay. We stopped again and checked temperatures and fluids and the clanging stopped. About 30 minutes later the clanging and a guttural noise began to occur from the engine bay and the transmission would not shift, keeping the vehicle at/around 4,000 RPM at 60mph. We were able to get the vehicle to a nearby rest stop. My wife, 3 children, and I were put in harm’s way due to GM’s faulty product and poor quality control. To have your vehicle shut itself off and/or not shift, especially on the interstate, is incredibly dangerous to the occupants of the vehicle as well as the motoring public. It is important to note that the vehicle never displayed any warning lights of any kind before, during, or after the incidents described. Almost two weeks later, Chevrolet (Cooper Chevrolet S.C.) has not even diagnosed the vehicle. They have told be that they will more than likely have to tear the motor apart to figure out the issue(s), confirming that the problem has been replicated by their technicians. The Tahoe is equipped with a 6.2l V8, a motor with well documented issues. The Tahoe is currently located at Cooper Chevrolet in Walterboro North Carolina. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)