Chevrolet Traverse brake failure problems

Filed Nov 6, 2026 · Brakes, Electrical · 17,100 miles · OH

The contact owns a 2026 Chevrolet Traverse. The contact stated that while driving 30 MPH, the message "Service ESC" and a message about the brakes were displayed. The contact depressed the brake pedal, and the brake pedal went to the floorboard and failed to stop the vehicle immediately. The vehicle slowed down and rolled to a stop. The contact parked and turned off the vehicle. The father of the contact's son arrived at the scene and restarted the vehicle. The vehicle operated normally afterwards, but was towed to the dealer. The dealer diagnosed the vehicle with a loosened bolt on the positive terminal, unrelated to the battery. The contact was informed that the bolt needed to be replaced. The failure mileage was 17,100.

Filed Oct 30, 2026 · Brakes · MI · crash

I experienced a sudden and complete loss of braking after the vehicle’s collision-avoidance system activated. As I was exiting the freeway, I had my foot firmly on the brake pedal and the vehicle was slowing down normally. The collision-avoidance notification then activated, and the brake pedal immediately went to the floor. The vehicle would not brake despite repeated attempts to pump the pedal and apply additional pressure. I struck the vehicle in front of me twice before I was able to bring my vehicle to a stop by placing it in Park. There was no damage to either vehicle, and a police report was filed. This was an abrupt, total failure of the vehicle’s braking system.

Filed Oct 19, 2026 · Brakes, Driver assistance · 19,357 miles · NC · 2 injuries

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving, approaching a traffic light, the Electronic Stability Control (ESC), rear collision warning, service assist, front collision warning, check engine light, and multiple brake warning lights illuminated. The emergency brake failed to function. The vehicle was towed to a local dealer, where the master cylinder failure was diagnosed, and the part was replaced. However, while driving after the repair, a complete brake failure occurred alongside the same warning lights. The contact lost control of the vehicle and traversed two intersections. The contact attempted multiple times to stop the vehicle, and the contact's daughter exited the moving vehicle before the contact stopped the engine by depressing the ignition button. The police were contacted, and a CAD report was generated. The vehicle was towed back to the dealer, where a second master cylinder failure was diagnosed and repaired under warranty. The failure mileage was approximately 19,357.

Filed Sep 29, 2026 · Brakes, Electrical · IL

Master cylinder failure on interstate caused complete loss of braking. No accident. Shop replaced master cylinder per GM bulletin. Warning light for brake assist failure came on and pedal went to the floor. This could’ve ended in a mass casualty situation, thank god we were in wide open territory and could coast to a stop which took over a mile in neutral.

Filed Sep 24, 2026 · Brakes · 21,589 miles · IN

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving 40 MPH, the semi-truck in front of the vehicle started slowing down and the contact depressed the brake pedal and the brakes failed. When the brake pedal was first depressed the brake pedal was extremely firm. While forcefully depressing the brake pedal the brake pedal went to the floorboard and the braking distance became extended. The Brake Assist Failure, Warning Brake, Park, ABS, Starter Control, Crash, and ESC warning lights were illuminated. Additionally, the parking brake was inoperable, and the vehicle was coasted to a stop. The contact became aware that there was fluid leaking underneath the vehicle. A Police report was filed. The vehicle was towed to the dealer. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 21,589.

Filed Aug 18, 2026 · Brakes · SC

On 08/15/26, I was at a traffic light waiting to make a left turn on a major roadway. Because the wait was on a hill, the park brake automatically engaged. When the traffic light turned green and as I attempted to accelerate, the electronic parking brake failed to release as it should and normally does. Since the vehicle would not move normally, I was unable to safely make my intended left turn so I had to continue straight in order to get out of the way of moving traffic. As I was driving to a parking lot of a business in the vicinity, my back tires were screeching and smoking as the park brake appeared to remain engaged. I was extremely concerned because I was in active traffic and could not operate the vehicle normally. I attempted to resolve the problem by turning the vehicle off, allowing it to sit for a few minutes and restarting it. After at least 20 tries, I could feel the pressure of the brakes release and I was finally able to move the vehicle normally. This was frightening and placed me and other motorists at risk. I was stopped at a major intersection on a hill when the vehicle failed to operate normally as traffic began moving. Had the parking brake remained engaged, I could have been stranded in moving traffic or potentially involved in a collision. I have experienced this parking-brake problem at least seven times, including this incident, since I have owned this vehicle since 2017. I have also experienced an abnormal condition involving the vehicle in which it would not allow me to shut off the engine when the park brake was engaged therefore wearing out the battery and I had to have it towed to the dealer. I am concerned that there may be an underlying electrical or electronic control-system defect. This greatly concerns me and it should be very alarming to the manufacturer. I have asked the dealer and called Chevrolet HQ to inquire about a recall or at least recoup some of the money I am constantly paying out of pocket.

Filed May 8, 2026 · TX

Back in December 2025 took car in because there was a coolant leak until the car started. Alerting me that it was overheating in the middle of the freeway. I had to find a place to pull over while the car was alerting. With urgent urgent urgent alert to pull over. Took it into dealership and it Turns out it had a coolant hose leak . I took the car in for an oil change TODAY and turns out has a host leak again. The dealer did the inspection and I don’t have the part available to fix it. And this is a brand new car giving me issues. I travel far on weekend so this would be hazzard. The dealer said the water tank low because of the leak. It’s also the rear backseat window would not go Thank you It’s leaking, and that’s a safety issue. Because if there’s Down emergency, we can roll the window down. We also had an issue with the break pad alert system alert me. There was no brakes. It turned out to be in update issue and again I was going to travel on vacations. Those are other issues. I’ve had with the car but the maintenance issue today is at the clothes again is leaking and is a safety hazard because if I’m driving and the car and it overheats.

Filed May 6, 2026 · Brakes · PA

At approximately 30,000 miles, upon starting my 2025 Chevrolet Traverse LT, the brake pedal traveled completely to the floorboards with zero resistance. Simultaneously, the 'Service Brake Assist' warning message appeared. This loss of hydraulic pressure occurred while stationary. This follows a dealership visit one week prior for a 'glitchy' check engine light that was dismissed by service staff.The vehicle is being towed via flatbed to the dealership as it is unsafe to operate. Additionally, the vehicle has exhibited abnormally 'touchy' brake response and a persistent high-pitched squeal from the front assembly since purchase. These symptoms suggest a failure of the e-Boost braking system and/or internal master cylinder seals, consistent with Service Update N242482170. This defect poses an immediate risk of total brake failure during operation.

Filed Apr 21, 2026 · Brakes · FL

I was driving through the tollbooth on the bayway in [XXX] , I stepped on the brake to slow down and all kinds of warning lights lit up in the car showing the brakes were not working. Anything automatic with the brakes failed. I had to stand on the brakes to get the Traverse to stop. The issue was confrmed to be the master brake cylinder I was lucky they had it in stock at Maher Chevrolet in St Petersburg. My grandson was supposed to be in this car the next day driving over the skyway bridge. The safety of children is being compromised. Please issue a recall!!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 11, 2026 · Brakes, Electrical · FL

Vehicle driving 32 miles an hour had sudden brake failure. The brakes did not work. Then, the vehicle had the following faults; ESC fault, traction and stability control fault, brake system fault, air conditioning failure (blowing hot air while 92 degrees out), lane assist fault, power steering fault. The vehicle almost slammed into traffic as it could not stop. The vehicle has 14872 miles.