2019 Chevrolet Traverse

I had to replace my 2019 traverse transmission around 105,000 miles but had a shuddering when slowly accelerating or driving since around 70,000 miles. Possibly a programming issue with the transmission control module?? Because after replacing transmission the shuddering still happened and I had to reprogram the transmission control module again and then the shuddering is 95% gone. Also , shift to park alert is a big issue too. If you put the car in park sometimes you have to maneuver the shift knob and tap it to make the “park to shift” go away so I can lock my car.

The contact owns a 2019 Chevrolet Traverse. The contact stated that while attempting to reverse, the vehicle failed to reverse as intended. Additionally, while shifted into drive and the accelerator pedal was depressed, the vehicle failed to accelerate as intended, and it stalled. No warning lights were illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The dealer was made aware of the failure but provided no assistance. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,000.

The contact owns a 2019 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the vehicle jerked and failed to exceed 23 MPH. Additionally, the message “Shift to Park” was displayed upon parking the vehicle. The contact shifted out and in park (P) several times, and the vehicle responded as intended. Additionally, the contact stated that the vehicle failed to reverse. The vehicle was diagnosed by an independent mechanic, who discovered that the transmission fluid was leaking. The vehicle was then towed to the dealer, where it was determined that the transmission needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 20V668000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 84,449.

To the National Highway Traffic Safety Administration, I am submitting this letter as a **formal safety complaint** regarding repeated transmission failure in my **2019 Chevrolet Traverse**, which poses a potential risk to vehicle safety. In **December 2024**, while the vehicle was still covered under General Motors’ factory powertrain warranty, an authorized GM dealership diagnosed a serious transmission defect. Due to parts being on national backorder, the repair was delayed. When the repair was eventually performed, only partial components (torque converter and valve body) were replaced rather than the full transmission. Despite this repair, the transmission **failed again less than one year later**. In **November 2025**, a second authorized GM dealership confirmed that the transmission now requires **full replacement** and that the prior repair did not correct the underlying defect. The transmission failure has resulted in **slipping, hesitation, and loss of proper power delivery**, which creates a **potential safety hazard**, particularly during acceleration, merging, and highway driving. A loss of propulsion or delayed response in traffic significantly increases the risk of an accident. This issue was identified while the vehicle was under warranty and was not properly resolved. The repeat failure suggests a **systemic defect** rather than normal wear. General Motors has declined further assistance. I am requesting that NHTSA review this complaint as part of its monitoring of potential **powertrain defects** affecting vehicle safety. Vehicle Information: * Make/Model: 2019 Chevrolet Traverse * Manufacturer: General Motors * Component: Transmission / Powertrain Thank you for your attention

The contact owns a 2019 Chevrolet Traverse. The contact stated that while driving at 30 MPH and depressing the accelerator pedal, the vehicle lost motive power. No warning light was illuminated. The contact stated that the vehicle stalled in the middle of the road, and her husband picked her up from the scene. Neither the dealer nor an independent mechanic was contacted. The contact stated that while shifting into park(P) and while attempting to turn off the vehicle, the vehicle failed to respond as intended. The contact drove around and attempted to park the vehicle, but the failure persisted. The shift to park warning light was illuminated. The contact stated that the instrument panel was flashing on and off unexpectedly. The transmission was replaced once; however, the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 104,000.

The contact owns a 2019 Chevrolet Traverse. The contact stated that the stabili-trak warning light was previously intermittently illuminated. Additionally, the contact stated that upon coming to a stop, the vehicle jolted back and forth. The contact stated that upon shifting to reverse(R), the vehicle failed to respond. The contact stated that upon shifting to drive(D), the vehicle jerked while responding. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where the contact was advised that there was an oil leak, but the source of the leak was undetermined. Additionally, the mechanic informed the contact that the failure was related to the transmission. The vehicle was taken to the dealer, where the contact was informed that there would be a charge for the transmission disassembly and replacement. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 20V668000 (Power Train); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 115,000.

The contact owns a 2019 Chevrolet Traverse. The contact stated that the vehicle was jerking forward while depressing the brake pedal. There was no warning light illuminated. Additionally, the contact stated that while depressing the brake pedal, the pedal depressed to the floorboard. The contact also stated that the "Service Stabili-trak" warning light was recently illuminated on the instrument panel. The dealer was notified of the failure, and the contact was informed that there were no recalls on the VIN. The manufacturer was also notified of the failure and referred the contact back to the dealer for assistance. The contact was informed that the warranty on the vehicle had expired. The vehicle was not repaired. The failure mileage was approximately 91,000.