2024 Chevrolet Traverse: sudden loss of power

Filed Oct 28, 2026 · Brakes, Electrical · FL

1. What component or system failed or malfunctioned, and is it available for inspection upon request? Multiple critical factory components and electronic systems failed or malfunctioned on this vehicle: • Electronic Brake Control / eBoost Software System: The factory brake-life tracking software severely malfunctioned, miscalibrating the braking system metrics. Furthermore, despite subsequent system recalibration confirming over 90% friction material life remaining, the braking system continues to suffer from persistent, severe brake noise. • Exhaust / Emissions System: A premature mechanical failure occurred in the exhaust system, resulting in a loud passenger muffler defect. • Electrical Charging System: The primary vehicle battery suffered from a premature voltage drop/depletion and completely failed standard diagnostics. • Restraint System: The third-row head restraints suffered from a factory defect causing them to jam (subject to active Customer Satisfaction Program N262558680). • Inspection Availability: Yes. The vehicle, its electronic systems, and all diagnostic readouts/replaced components are fully available for physical or electronic inspection upon request. 2. How was your safety or the safety of others put at risk? Safety was compromised across multiple vectors: • Braking Unpredictability: Driving a family vehicle with an active, unaddressed brake system software defect and ongoing noise creates extreme uncertainty regarding emergency stopping capabilities and electronic brake-assist behavior. • Crash Injury Hazards: The jammed third-row head restraints directly compromise the effectiveness of the vehicle’s passive restraint system, increasing the risk of severe whiplash or head injuries to rear passengers (including children) in a collision. • Uncontrolled Stranding: The combination of a depleted primary battery and severe system faults puts occupants at risk of sudden electrical failure or entering "limp mode," risking power loss in high-speed or

Filed Oct 14, 2026 · Engine, Transmission · PA

2024 Chevrolet Traverse, 2.5L turbo (LK0). The cooling system has repeatedly lost coolant through quick-connect hose fittings. On 4-3-2026, at 36,650 miles, Washington Chevrolet replaced the radiator inlet hose under warranty for coolant loss. After that repair the vehicle kept losing coolant, and I have had to top off the reservoir repeatedly. No low coolant warning or dash alert has ever appeared. On 10-14-2026, at 49,066 miles, the same dealer found the outlet hose at the coolant surge tank leaking, rated it Critical, and quoted $480.30 to replace it. The dealer declined warranty and goodwill coverage. Safety concern: coolant loss with no driver warning can lead to overheating, reduced power, or engine shutdown while driving, including at highway speed. GM has acknowledged quick-connect coolant leaks on this vehicle under Special Coverage N262546590 (radiator inlet hose, 2024-2026 Traverse) and bulletin PIT6494A (the same seal failure on GM's 2.7L turbo trucks). My second leak is at a different quick-connect in the same cooling system, which those programs do not cover. I am asking the federal safety agency to investigate the quick-connect coolant fittings across the entire LK0 cooling system, not just the radiator inlet.

Filed Jan 15, 2026 · Electrical, Engine · NY

I am filing this complaint regarding a persistent and unresolved defect with my 2024 Chevrolet Traverse, VIN: [XXX] . The first occurrence of this issue was in June 2025. Since then, the vehicle has repeatedly experienced a “Check Engine” warning, engine misfires (cylinder misfire), loss of power while driving, and severe engine shaking. These symptoms make the vehicle unsafe to operate. The vehicle has been taken to an authorized Chevrolet dealership approximately 20 times for the same ongoing issue. Despite multiple repair attempts, the problem has never been permanently resolved. In total, the vehicle has spent about three months out of service at the dealership. As of January 14, 2026, after the vehicle has been at the dealership for over two weeks, I was informed that the dealer is unable to repair the vehicle. They have escalated the case to the manufacturer, General Motors, because they cannot identify a permanent solution. The current mileage of the vehicle is approximately 41,700 miles. This ongoing defect makes the vehicle unreliable and unsafe for normal use. The repeated failures to repair suggest a potential manufacturing or design defect rather than an isolated incident. I respectfully request that the federal safety agency review this matter and determine whether an investigation or further action is warranted. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 29, 2025 · AZ

At around 22,000 miles my vehicle went into reduced power mode with no indication of why. This happened while I was going up a steep hill and the reduction of power slowed my vehicle dramatically, and I was nearly rear ended. The vehicle had no check engine light on until the next morning. I got the check engine light read at Autozone and they indicated that it was for a coolant pump. When i checked the coolant reservoir, it was empty. I added GM approved coolant and the check engine light turned off, but I had already set up for the vehicle to be serviced at Earnhardt GMC, so I still took it in on 9/19/25. They had my vehicle there for 5 days and said it was a valve that was causing a leak, and they had replaced it. On 10/12/25, my vehicle went into reduced power mode on the freeway again. I still had no check engine light. I had to wait until the morning to take it into the dealership again. In the morning the check engine light came on again, so the dealership was able to read it and it was the same code as before. This time they only needed the vehicle over night, and said the coolant leak was from a bad water pump. on October 27th, my vehicle once again went into reduced power mode on the freeway, and again no check engine light. The next morning the check engine light was present and I again took my vehicle to Earnhardt GMC to have it diagnosed. Once again it had the same code. The next day I received a text message from my service advisor, that the issue was from the radiator hose and that they will be ordering it. So at this point I am in a rental car that was covered by my warranty. I asked if they had any updates 2 days later, and was told they didn't. On 11/3/25, while looking at a Facebook group for 2024 Traverse owners, I saw a number of people with the same issue I was having and getting month long ETAs for repair. It was later confirmed that my part will not be available until between 12/16/25-12/30/25. My vehicle is currently still at the dealership.

Filed Sep 3, 2024 · Engine, Fuel system · FL

What component or system failed or malfunctioned, and is it available for inspection upon request? transmission problems. loss power while driving vehicle How was your safety or the safety of others put at risk? vehicle stopped driving while on road with traffic. Major accident could of happened Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, Joh Hall Chevy dealer is aware of issue Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Being inspected by Chevy dealership Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no prior messages. During incident warning appeared on dash stating reduced acceleration drive with care.

Filed Jul 8, 2024 · Transmission · TX

On May 14 a service bulletin was released by GM for an issue with the transmission #N242446290 causing a reduced acceleration suddenly and finally zero acceleration after a few minutes unexpectedly. I purchased this car brand new on [XXX] and was not made aware of this potential problem. On [XXX] we took a family vacation road trip from TX to Gatlinburg, TN. The transmission failed and the engine gave zero acceleration the night of [XXX]. I had to have GM roadside tow the vehicle to a Chevy dealer there in Tennessee and then rent a car out of my own pocket to drive home. This is a safety hazard for sure with the vehicles listed on this bulletin as it gives no warning of failure while driving. I was pulling onto the road with traffic when the engine light came on and I lost all power, unable to move out of the way. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)