2025 Chevrolet Traverse transmission problems

Filed Aug 30, 2026 · Driver assistance, Transmission · TX

Sudden slamming on the brake automatically when in reverse and there is nothing around the car to cause this. Has happened many times The car will alert that something is too close when turning right by there is nothing there. It is intermittent. When you start the car it the motor reves up very high and will stay there until you push the gas and then it quiets down. This is usually the first start of the day. High and rough idle Super hard intermittent transmission shift or down shifting while normal driving. It jerks really hard and sometime it’s so hard it throws you forward like the brake is being applied. Symbol intermittently shows up on dash. Then goes away after the car has been turned off and restarted. Brakes squeal bad. Acceleration reduction message then check engine light came on 8/30. Roaring loud noise before the light came on. Put 1 gallon coolant in it and light went off. Now runs and idles high.

Filed Jun 7, 2026 · Electrical, Engine · FL

the federal safety agency Defect Report (Initial Portal Filing) Manufacturer Target: General Motors (GM) Filer: [XXX] Classification: Mechanical Defect & Administrative Evasion Narrative for Submission I am filing this formal defect report regarding a catastrophic, systemic safety failure present in the 2025 Chevrolet Traverse architecture (VIN: [XXX]), manufactured by General Motors. The vehicle was originally purchased at AutoNation Timonium. THE SAFETY DEFECT AND TELEMETRY PROOF On March 18, 2026, the vehicle suffered a total failure of the transmission and drivetrain systems. It was immediately surrendered to Preston Chevrolet, where it remained completely out of service for 34 consecutive days. GM's own OnStar Diagnostic Telemetry automatically dispatched critical fault alerts while the vehicle was stranded, explicitly logging the following irrefutable failure codes: DTC U1962 (PCM - Engine and Transmission System): Warning stated: "System transferring power to the drive wheels not performing as expected." This indicates a catastrophic decoupling or failure to transfer motive power. If this failure occurs at highway speeds, it results in a total loss of propulsion, creating an extreme rear-end collision hazard. DTC U0452 (VIU - OnStar System): A simultaneous failure in the Wireless Communication and Safety system, meaning that when the drivetrain catastrophically fails, the vehicle's automated emergency SOS and crash-reporting telemetry is actively blocked or compromised. ELEVATION TO ADMINISTRATIVE EVASION General Motors and its authorized dealer network were provided with formal written notice of this defect. The 30-day statutory right to cure window fully expired without any mechanical resolution. Rather than deploying engineering solutions to rectify the severe safety defects they released into the public domain, GM has instead deployed aggressive legal maneuvers designed to evade accountability. Continued text in OFFICIAL_agency_DEFECT_REPORT PDF INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

Filed Mar 14, 2026 · Transmission · RI

Check engine light came on with limited acceleration vehicle, then proceeded to overheat several times having to pull over to the side of the road in very dangerous locations vehicle was brought to dealership and it was determined it was a coolant pump. It was replaced under warranty. I want it to be known that there was an issue as others I have heard our ex experiencing the same.

Filed Jan 13, 2026 · Transmission · FL

Since new vehicle vibrates when first started and placed in reverse

Filed Aug 20, 2025 · Transmission · OH

This vehicle had 19500miles on it when we picked it up at the airport rental agency. It was 2WD model. We used it for 2200 miles on a family vacation and 95% of this was interstate highways. Smooth road surfaces. The travel conditions were sunny hot, dry. There were 6 passengers and a decent amount of luggage. Rear cargo area still had foot or more of space though so it was not stuffed like for a beach trip. At one point after getting on the highway from on ramp, there was a horrible sound. It got louder and louder quickly and caused us to panic. My husband looked in all the mirrors. He said it sounded like a Peterbilt semi was barreling down on our ass. But there was none in the mirrors. He quickly let off the gas pedal during this and the sound went away. As we sped up again though, it did the same thing and this time even louder. Starting around 72mph. Something was resonating in the body or powertrain of the car and it seemed like it was about to come apart! We did a check quickly, all of the windows were completely up, the AC was on. The radio was off. He slowed back down, the sound went away. But for 3rd time of trying to reach 75mph, the whomping sound came back and was so intense, it was debilitating and he almost could not hear me talking. We didn't know what to do. He braked immediately to pull off to the side. On a busy highway. After we stopped he got out to look at the tires but we did not a have tire pressure gage. They seemed perfectly normal. He looked under car, in wheel wells, opened the hood with the engine running, shook the car from side to side. Nothing was found loose or hanging down. After this, we could hear the same type of sound at 54mph, 60mph, and between 72-77mph , it all came down to what RPM and gear the transmission was in. This seems like a total design flaw in the chassis or power train. We told the rental agency that no one should be using or buying this car until the issue was fixed.

Filed Jul 25, 2025 · Engine, Transmission · NY

After owning the vehicle for 13 short days, the check engine light came on and a message appeared indicating the vehicle could not be put in reverse due to unsafe vehicle condition. The vehicle just hit 500 miles at this time. Brought vehicle to the dealership 7/14 and it is still there diagnosed with needing a valve body for the transmission which is on back order and no estimate on when it will be available.

Filed Jul 11, 2025 · Electrical, Transmission · FL

The transmission system on my 2025 Chevrolet Traverse began showing signs of failure approximately 2–3 months after purchase. Symptoms include erratic shifting, gear hesitation, and sporadic power loss while driving. Although the issue was promptly reported to Chevrolet headquarters, I was unable to bring the vehicle to the dealer earlier due to the lack of available loaner vehicles. The car is now at the dealership and has been there for nearly three weeks without any updates or contact from the service team. The transmission is available for inspection, and documentation of the issue exists. The malfunction has created safety risks during normal driving, including delayed acceleration when merging into traffic and unexpected gear disengagement at speed. These conditions compromise vehicle control and increase the likelihood of a collision. Additionally, the vehicle produces a persistent squeaky noise from the accelerator pedal during operation, which could indicate underlying mechanical stress or a deeper linkage issue. The sound is both distracting and concerning, especially during highway driving or sudden acceleration attempts.

Filed Jul 3, 2025 · Transmission · MI

Vehicle has 4k miles, sudden loss of power at highway speed, rolled to right lane and fortunately had an exit close by. Engine runs and revs fine, could not engage gear (neither D or R), stuck in P. Vehicle had to be towed. Repair took almost 3 weeks, dealer reported trans fluid leak and multiple trans pump bolts loose.

Filed Jun 5, 2025 · Transmission · MA

1. Transmission leak. Car towed to dealer on 5/1/25 still there with no resolution. 2. Transmission fluid sprayed from under car which could get on the brake rotors and exhaust system. 3. Confirmed by dealer and GM service 25-NA-001 Transmission Fluid Leak Near Torque Converter dated 3/13/2025. GM shows that the repair should take 13.7 hours. 4. No only by dealer. 5. No warnings or symptoms. After a 100 mile trip we found Transmission fluid leaking in our garage floor. Had the car towed to the dealer on 5/1/25.

Filed Feb 18, 2025 · Transmission · NH

Brand new Traverse with 3,600 miles on it started leaking transmission Fluid. Was told by dealership it was a slow leak and it was ok to drive while waiting for parts to come in. 12 hours later while wife was on highway coming home from work check engine light came on and vehicle went into low speed mode. My wife was able to drift off the highway and come to a stop. There was a puddle of red fluid under the vehicle and the undercarriage and rear of vehicle were covered in transmission fluid. It was towed to dealership on 02/14/25 and we are still awaiting status of the repair.