ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE07/17/2026
Vehicle: 2024 Chevrolet Traverse Z71 Mileage at first incident: 25,821 My 2024 Chevrolet Traverse Z71 experienced multiple safety‑critical electrical and ADAS failures. The vehicle had a Reduced Acceleration / limp‑mode event, accompanied by a strong antifreeze odor inside and outside the vehicle. Dealer diagnostics on 06/29/2026 and 07/16/2026 confirmed several trouble codes affecting the engine, braking system, and collision‑avoidance systems. The following diagnostic trouble codes were recorded: P3705 – Engine Coolant Pump Control Circuit Low (engine cooling fault) C0609 – Park Brake Actuator / Switch Signal Fault (brake system logic fault)-Active 6.29.26 10:12:43AM U160A – Lost Communication With Serial Data Gateway Module (CAN‑bus gateway failure)-Active 6.29.26 10:12:43AM U197A – Lost Communication With Front Radar Sensor Module (forward collision warning / AEB disabled)-Active 6.29.26 10:12:43AM These faults caused loss of radar‑based safety features, including Forward Collision Warning, Automatic Emergency Braking, and Adaptive Cruise Control. The vehicle displayed warnings and temporarily disabled ADAS functions. The Reduced Acceleration event created a hazardous situation in traffic. The dealer attributed the incident to “low coolant,” but the diagnostic codes clearly show electrical and communication failures across multiple safety‑critical modules. The antifreeze odor continues, suggesting a possible coolant leak or unresolved cooling system issue. The vehicle has been inspected by GM technicians, and the codes were documented on both visits but they say car is fine. The safety systems affected include brakes, engine cooling, electrical CAN‑bus communication, and collision‑avoidance radar modules. I am requesting NHTSA to record this complaint and evaluate whether these failures represent a broader safety defect in the 2024 Chevrolet Traverse Z71.
SERVICE BRAKES07/07/2026
My breaks have been squealing on my 2024 Traverse since about 6 months after my purchase in 2024. I have taken it to the dealership on multiple occasions and they stated that GM knows of the issue but there is no fix. The system states my front breaks are low. I recently took my Traverse to a break repair/replacement shop and they stated my breaks are not low and they look great and numerous people have brought their Traverse in with the same squealing complaint. With the amount of complaints why hasn't GM done anything about it?
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE,LANE DEPARTURE07/06/2026
My cars brakes on its own at any speed with no surrounding objects. Car is always popping up with service issues. Super cruise bar in steering wheel cracked from summer heat now just dangles. Car locks and will not let you out of the vehicle.
SERVICE BRAKES05/22/2026
My brakes are very squeaky and loud 3 months into buying my brand new car its been squeaking and the dealership is ignoring my issue they said my breaks were fine and tbe pads have alot of life left Its been a year and its still making noise
SERVICE BRAKES05/17/2026
I have had a constant squeek with my brakes since the day I got the car.
SERVICE BRAKES05/16/2026
I took my vehicle in several times for issues regarding the brakes. I was told for months nothing was wrong. The brake percentage was rapidly declining on the display and they just kept saying it would fix itself in an update. Finally the service brake alert came on prompting me to take it to the dealership again for the brakes. I was told my front brakes were completely gone and needed new pads and rotors and my back brake lines were severed and pouring brake fluid everywhere. I was told I was lucky I brought it when I did because I could have gone to stop and just not been able to. It was concerning because there was no warning or indication there was anything wrong and I kept being told everything was fine
UNKNOWN OR OTHER05/08/2026
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.
Other/I am not sure04/24/2026
On the car seat there are two indicators to tell you if the seat is locked in place because it is a rotating car seat. Both indicators never fully go in the “green” meaning the seat is fully locked into place. The car seat is less than two years old and both indicators are malfunctioning, they aren’t going fully in the green. I reached out to the company with pictures and videos and they have done nothing to help. They said from the video it looks like the car seat is functioning properly and they will not fix or replace it.
UNKNOWN OR OTHER03/30/2026
Car stalled in middle of intersection. Had to get out push it out of the way turned on again after trying few times. Stalled again at stop sign won’t turn on locked out turned off car tried few more times got out pushed it out of the way tried few more times turned on again.
SERVICE BRAKES03/20/2026
At purchase, I noticed that the brakes felt spongy and were screeching when the salesmen pulled up. The salesmen stated that new brakes always screech due to burned plastic. Weeks later, I scheduled a servicing appointment with Chevy Crews in North Charleston, due to brake screeching, the repairmen told me again that the brakes had condensation on them, so he dusted them off and the screeching would stop in 3 weeks. 3 weeks later I returned again, the salesmen told me that GMC made the vehicles with faulty brakes. My vehicle was seen over 4 times for screeching brakes, thousands of consumers have complained about the same issue, and GMC has failed to act.
STEERING,FORWARD COLLISION AVOIDANCE03/20/2026
The 2024 Chevy Traverse has super cruise. It is basically an auto drive feature. It has sensors in the top part of the steering wheel. This plastic area is known for cracking and the dealership said there is nothing they can do. This is absurd. They know there is an issue with the wheels cracking and they are not fixing them under the warranty.
POWER TRAIN,ELECTRICAL SYSTEM,SERVICE BRAKES03/11/2026
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.
Showing 12 of 124 complaints.
