2022 Chevrolet Tahoe Power Train

Car went to limp mode, hard shifting very suddenly. Transmission system failed. No reverse. Computer codes p0700 p0777 p18A1 inspected at Chevy service center and needs valve body replacement. No warnings, lights, alerts, hard shifts previously.

2022 Tahoe RST with 5.3 10 Speed. Bought new in Sept of 2021. The 2022 we have had problems with shuttering in the drivetrain from very low miles. We have brought it into the dealership atleast 3-4 times before for this issue. This was all while it was still under its 60k drivetrain warranty. Dealership always told us that since there was no check engine light or codes that they can’t fix what is not broke or broke yet. We needed to wait for it to break or light then bring it in. We also received a letter in the mail for the trans recall (program)last year which was preformed. That day after, my wife started to notice it shuttering more than usual and more often. I call the dealership that performed the recall which they said to bring it in. After looking it over. I get a call saying that I should get the transfer case fluid, front and rear diff fluid changed. It might be the transfer case slipping. Advisor told me that since it was about due for this service. Fast forward to May 9th of this year. My wife was at church. She parked it which it ran fine. Came out about 30-40 mins later put it into drive and wheels where locked up. She called me panicking that something was wrong. Go to her aid which I had to have it towed to the same dealership that serviced it before. Even check it in with the same advisor that helped us before after the recall issue. I should now mention our 22 Tahoe has 68,700 miles. Dealership called us a few days later saying it was the valve body. Especially since we had have problems before with the drivetrain and documented. The vehicle is still inoperable. We are waiting for a valve body with no ETA.

The contact owns a 2022 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the contact noticed a loud knocking sound coming from the vehicle and the vehicle jerked abnormally. The accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. There was no warning light illuminated. Additionally, the contact stated that the gear shifter failed to operate as intended and the vehicle failed to shift into reverse. The vehicle was driven to the residence. The vehicle was scheduled to be towed to the dealer. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 85,000.

several times we will be driving down the road and it feels like the vehicle is trying to shift into park and the tires lock up. Then it goes into a mode where acceleration is limited.

Faulty valve body Safety was put at risk, I was traveling on a 4 lane road at 45 mph when my vehicle experienced a significant jump in RPM with immediate loss of propulsion. I immediately drove to the dealership as the incident was frightening. The vehicle was also not able to go into reverse. This valve body failure issue has been confirmed by the GM Chevy Dealership, and GM corporate executive services. My vehicle has been undriveable and at the dealership since 3/4/25. This is a known issue with GM, parts are not available and are back ordered with no ETA on when they will be available. Even with a replaced valve body it is likely the vehicle will have future transmission issues &/ additional valve body failure. Please strongly consider a recall related to this known issue and safety concern.

Transmission valve body failure after factory warranty expired.

This is the 5.3 and not the 6.2. The vehicle turned off and switched to neutral while driving, that almost caused an accident. Dash displayed engine/transmission failure. Vehicle became a boat anchor and was towed to dealership. Possible transmission valve body issue.

The contact owns a 2022 Chevrolet Tahoe. The contact stated while driving at approximately 35 MPH, the vehicle was losing motive power. The contact stated that the "Service Transmission" message was displayed. The contact stated that the transmission temperature gauge was showing that the transmission was almost 200 degrees. The contact was able to drive the vehicle to the residence. The contact made several attempts to reset the transmission by turning the vehicle off and on and then attempted to reset the Transmission Control Module by disconnecting the battery. The contact was able to drive the vehicle to a local dealer. The dealer diagnosed the vehicle and determined that the transmission valve body had failed and needed to be replaced. The contact was advised by the dealer that the parts needed to repair the vehicle were on a national backorder. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 38,000.

2022 Chevy Tahoe with 32,292 miles of in-town and highway driving, never any towing. Perfectly maintained on time. Suddenly started to not respond to acceleration, and jolting, then would not reverse. Transmission valve body has already gone out. GM acknowledged the problem. States there is a national shortage of this part. There is nothing they know of being done about. Park the vehicle and wait for a part to become available. No ETA, but 2,200 of this part have already been requested recently.

Making a left turn I hear rumble and roar coming from rear end. This noise is accompanied by slower turning speed. Once straight no problem. Will inform local dealer to see if this can be corrected. No indicator lamps or warning on any kind.

The contact owns a 2022 Chevrolet Tahoe. The contact stated that after starting the vehicle and making a turn in either direction, there was an abnormal groaning sound coming from the rear of the vehicle. The vehicle was taken to the local dealer who diagnosed the vehicle and determined that the rear differential had malfunctioned, and the differential fluids were replaced. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the Extend Coverage to address the failure. The failure mileage was 40,000.

The contact owns a 2022 Chevrolet Tahoe. The contact stated that the vehicle was intermittently restarting independently after being turned off. The contact also stated that while driving at approximately 70 MPH, the vehicle lost motive power and the transmission independently shifted into neutral(N). After veering to the side of the road, the vehicle was turned off and the gear was shifted into park(P). The vehicle was able to restart. No warning lights were illuminated. The vehicle was taken to a local dealer on various occasions; however, the failure could not be duplicated. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 15,000.

We were driving down the interstate when the engine shut off. All electrical was on in the car, but the engine turned off. The dash instructed me to press the start button. We were in traffic at the time of the incident with about half full gas tank. I selected neutral and proceeded to start the engine. It started with no issues and was able to be put back in gear. Continued without further issues.