2023 Chevrolet Traverse: check engine light

Filed Oct 21, 2026 · Transmission · FL

-The Torque Converter Clutch (TCC) inside the automatic transmission is malfunctioning. It is experiencing a known defect outlined in GM Service Bulletin 23-NA-072. The vehicle is still being driven and is available for inspection upon request. -The transmission violently shudders and vibrates under light acceleration at low speeds (such as pulling out into traffic, merging, or navigating intersections). This violent, unexpected shaking creates a distraction, mimics the feeling of a blown tire or driving over a rumble strip, and causes hesitation in acceleration, which creates a safety hazard when merging with oncoming traffic. -The problem has been consistently reproduced by the owner. It matches the exact diagnostic criteria of GM’s active Technical Service Bulletin for TCC shudder. -No, it has not been inspected. - No check engine lights, warning lamps, or dashboard messages have appeared. The physical symptom is a severe mechanical shudder/vibration at low acceleration speeds, which first began appearing at approximately 75,000-80,000 -

Filed Sep 2, 2026 · Transmission · 63,400 miles · TX

The contact owns a 2023 Chevrolet Traverse. The contact stated that while driving in the lower gears and attempting to accelerate, the rear wheels suddenly locked up. The check engine warning light was occasionally illuminated after the failure occurred. The vehicle was towed to a local independent mechanic to be diagnosed, and it was determined that the transmission needed to be replaced. The local dealer was contacted. The failure mileage was approximately 63,400.

Filed Jul 25, 2026 · Transmission · MO

I own a 2023 Chevrolet Traverse. While driving, the vehicle suddenly began jerking very hard during acceleration and shifting. The Check Engine Light illuminated, and the vehicle became unsafe to drive because the transmission was not operating normally. I was concerned that the vehicle could suddenly lose power or fail while driving in traffic, increasing the risk of a crash. I took the vehicle to a Chevrolet dealership for diagnosis. The dealer found the transmission fluid was burned and diagnosed transmission trouble codes P0797 and P0700, indicating an internal transmission problem. Transmission .PDF Before the failure, I experienced harsh shifting and jerking that became progressively worse until the warning light came on. The problem has been confirmed by a Chevrolet dealership. The failed transmission is available for inspection upon request. I am submitting this complaint because I believe this transmission failed prematurely at approximately 68,933 miles. I am concerned that other owners may experience the same failure, creating a serious safety risk if the transmission loses power or fails while the vehicle is in motion.

Filed Jul 3, 2026 · Engine, Transmission · TX

I own a 2023 Chevrolet Traverse RS, VIN [XXX]. This vehicle has repeated safety-related failures involving the engine/cooling system, fuel-injector/misfire system, steering-assist warning system, and electronic parking brake system. The vehicle is currently at AutoNation Chevrolet West Austin, dropped off on XXX, and is available for inspection. Soon after delivery, the vehicle began losing coolant and overheating. This was not isolated. Before the engine was finally replaced, there were at least four documented coolant/overheating-related dealer visits or repair notes: XXX. The problem repeated again on XXX, becoming the fifth coolant/overheating-related visit and resulting in GM/dealer-authorized engine replacement after internal coolant-related findings. Dealer records show low/empty coolant reservoir, overheating, fan-running symptoms, almost one gallon of coolant added, no external leak found, coolant dye added, GM TAC involvement, and internal coolant findings. After engine replacement, the vehicle continued to fail. In February 2026, it displayed check-engine light and “Steering Assist Reduced / Power Steering Reduced.” The dealer confirmed misfire and replaced cylinder 1 fuel injector. In April/May 2026, the vehicle displayed a service parking brake warning; the dealer documented left rear parking brake actuator high current. Now, on XXX, the vehicle is again at the dealer for blinking check-engine light, and the dealer advised the code shows another engine misfire. My family’s safety is at risk. Repeated overheating, engine replacement, steering-assist warning, parking brake warning, and recurring misfire create unsafe drivability risk, especially on highways, merging, intersections, or long trips. I no longer feel safe operating this vehicle INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 22, 2025 · Brakes, Driver assistance · TX

While practicing parallel parking in the vehicle for about 1 hour, upon leaving the parking lot, there was a message that popped up on the dashboard reading, “SERVICE BRAKE ASSIST”. When driving the vehicle out the parking lot, the brakes were hard when pressing and the vehicle took a while to brake. I found myself braking at a far distance in order to stop the car at the nearest stop light. I turned my emergency lights and drove carefully home, since the engine light came on, which I parked and turned off the car. The next day, I turn on the vehicle and the engine light is still on, I take it to the local Auto Zone for a code, code P0556 is showing BRAKE BOOSTER PRESSURE SENSOR. I then call the dealership, they tow the vehicle and upon arrival they run diagnostics and text me the following message: “ Buckalew Chevrolet: They looked into all of those. They'd have been induced by the parking brake situation, however eveything in the computers have moved to "history" standing which means the vehicle no longer deems it an issue. If a code is not active or current, there is not much I can do with it. It shows us what the computer saw as having an issue, but not what the issue is or how it occured. Without us being able to duplicate it or it actively giving a signal that we can measure, we are kind of stuck without a paddle.” They next say they don’t find anything and they cannot fix it, there I have to go pick up my vehicle. Therefore I do, but the following weekend I go practice parallel parking AGAIN, and the issue happens all over again with the EMERGENCY BRAKE ASSIST turning on by itself, I continue to have braking problems. “STEERING ASSIST IS REDUCED DRIVE WITH CARE” reads on the dashboard, I call the dealership, they say I have to bring the vehicle in when it’s actively having the issue, and I explain that once I turned off the car, the dashboard message disappeared. No response, no resolution. the dealership just brushed it off and said it was nothing.

Filed Jul 18, 2023 · Electrical, Engine · NY

After owning new vehicle for one month the check engine light comes on, return to dealer for service and we are told there is a known issue with 2023 Traverse showing check engine light off the lot. The vehicle is inspected and found that wires from the computer are rubbing/melting against a hot surface in the engine/transmission causing a faulty check engine light.