There are 32 owner-reported electrical system complaints for the 2025 Chevrolet Traversein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Vehicle: 2025 Chevrolet Traverse On [XXX] at approximately [XXX], while driving south on [XXX] , my vehicle suddenly shut off without warning resulting in a complete electrical failure. During this event, I lost the ability to accelerate, activate hazard lights, unlock doors, open or close windows, or use the OnStar system. The vehicle restarted briefly but then shut off two additional times before I could safely move it off the road. There were no warning messages or signals prior to this incident. This created a serious and immediate safety hazard, as I was unable to alert other drivers or exit the vehicle during the failure. I am requesting a formal investigation into this issue, documentation as a safety defect, and immediate corrective action. This incident poses a significant risk to driver and passenger safety. The vehicle has been towed to the dealership it was purchased from. The problem has not been confirmed or reproduced by the service center. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2025 Chevrolet Traverse. The contact stated that while attempting to start the vehicle with the Push-To-Start feature, the vehicle failed to start as intended, and the battery was drained. In addition, AAA Roadside Assistance arrived at the residence to recharge the battery. The vehicle was taken to a local dealer, where it was determined that the On-Star module was draining the battery, preventing the low power mode from activating. The contact stated that the failure had occurred on several occasions. The manufacturer was made aware of the failure. The failure mileage was approximately 13,000.
Onstar Module failed causing battery to drain and no ETA on part -- from Chevy - To drive the vehicle the module is disconnected by the dealer as parasitic battery drain causes all other safety systems to fail - with module disconnected hazard lights will not work - so if situation happens where hazards are necessary to save occupants life they are not working and functioning due to care to able to function.
El 6 de enero de 2026, minutos después de retirar el vehículo del concesionario tras un servicio de frenos, el sistema de enfriamiento presentó pérdida total de refrigerante debido a una manguera del radiador rota. El vehículo fue regresado inmediatamente y quedó retenido por recomendación técnica de no conducirlo por riesgo de sobrecalentamiento del motor. La condición representa un riesgo de seguridad pública si ocurre durante la conducción, ya que puede provocar pérdida súbita de potencia, detención inesperada del vehículo y posible incidente vial. El 21 de enero de 2026, durante inspección previa a entrega, se detectó una segunda falla: módulo OnStar inoperante (GPS no funcional). Ambos eventos fueron diagnosticados por el concesionario autorizado. La pérdida súbita de refrigerante y posible sobrecalentamiento del motor implica riesgo de falla mecánica repentina, pérdida de potencia o detención del vehículo en circulación, lo que puede causar un incidente vial. El concesionario indicó explícitamente que no debía conducirse el vehículo bajo esas condiciones. Sí. Ambos problemas fueron confirmados por el concesionario autorizado: primero la falla del sistema de enfriamiento, luego la falla del módulo OnStar. El vehículo ha sido inspeccionado por el concesionario autorizado. El fabricante ha sido notificado formalmente y existe un caso abierto con su departamento de atención al cliente. No existían advertencias previas. Las alertas y ventilador excesivo aparecieron minutos después de salir del concesionario el 6 de enero. La falla del GPS se detectó el 21 de enero durante inspección previa a entrega. El vehículo continúa retenido por reparación pendiente y no ha sido devuelto en condiciones seguras o funcionales.
Driving home coming up to a traffic light - I turned left onto Rd - After turning lost the brakes. Saw message on dashboard along with many others indicators as well. Saw the same message as the previous time ““Brake Assist failure. Press hard to brake. Speed Limited”.
The vehicle has been brought to an authorized dealership for numerous service visits related to electrical system issues that ultimately affected the braking system. During one service visit, the vehicle was returned to me with multiple active dashboard warning lights illuminated related to the braking system, including Electronic Stability Control and Automatic Emergency Braking. I questioned the presence of these warning at pickup and was advised by the dealer that the vehicle was safe to drive and that the warnings would clear on their own. After driving the vehicle for a short period, I became uncomfortable continuing to operate it with brake-related warning lights still active and returned it to the dealer. Upon further diagnosis by a service technician, it was discovered that the vehicle has significant brake system defects requiring replacement of major components, including the brake control module and master cylinder. During diagnosis, the brakes locked and the parking brake would not disengage, rendering the vehicle undrivable. No collision or injury occurred. However, the vehicle was released to me with active brake system warnings and later found to have serious brake defects. Due to the safety-critical nature of the braking system and the repeated electrical and brake-related service history, I am reporting this for documentation and review.
Driving home - what looked like warning indicators on the dashboard, came on. Lost the ability to brake. Had to push the pedal all the way to the floor to get some braking to happen. A message came on the dashboard “Brake Assist failure. Press hard to brake. Speed Limited”. Once we were able to stop. We turned the car off. then turned it back on. We saw a message on the dashboard to “open the drivers door” and then “roll down the drivers window”. We did that and the car seemed to be normal again
Vehicle currently at dealership for ESC, brake system and ABS warning lights coming on. Unable to use cruise control once these lights came on.
Brake assistance failure. Brakes failed! ESC SERVICE I was able to set it up for inspection Could of caused a accident hurting other people or hurting my family, I use this vehicle to transport my 2 babies Vehicle would not brake properly could have cause serious injuries For my vehicle not yet has not been inspected it was towed, from what I have heard from current Traverse owners they have experienced this same issue with even lower milage No warning lights no indications of failure just happend instant twice
I own a 2025 GMC Traverse purchased in July 2025. The vehicle is experiencing ongoing electrical system issues. The GPS and OnStar systems are inoperative, including vehicle location services. The vehicle cannot connect to OnStar or detect a Wi-Fi connection. In addition, the adaptive cruise control is not functioning properly. These systems have been inoperative for approximately 4 weeks. The vehicle was taken to the dealership and I was informed that parts are required, but no repair timeline has been provided. The loss of GPS, OnStar emergency services, and adaptive cruise control presents a safety concern, as emergency response, vehicle tracking, and driver assistance features are unavailable while driving. The issue remains unresolved.
A car approached my blind spot and the blind spot detection did not alert. I tried to change lanes assuming the system was functioning and nearly ran someone off the road. Shortly after this the “service blind spot detection light” came on. Following this failure the vehicle telematics went out rendering the paid on star safety system useless. Parts to remedy the issue on indefinite back order per GM on 12/8/25.
Brake booster failure, master brake cylinder failure
Telematic control module failed. vehicle has 7k miles on it and brand new. Still under bumper to bumper warranty. Dealership diagnosed the emergency services /navigation system failure and ordered the part which is on significant backorder to due to nationwide shortage. No eta for repair. Problem occurred oct 25, 2025. This needs to be a recall. dealership not providing suitable and comparable loaner due to not having 3 row available. stating enterprise does not have one. put me on waiting list for suitable loaner. escalated to gm customer care, gm customer care supervisor, gm executive resolution, dealership supervisor with no immediate solution. Will be filing lemon law case.
The master cylinder and ABS braking system failed, rendering the vehicle inoperable and leaving my family stranded approximately 285 miles from home. This represents a serious safety defect, as the braking system malfunctioned while the vehicle was in operation. The dealership has confirmed the issue, and the vehicle has remained in their possession for over two weeks awaiting parts and repair. During the failure, multiple warning indicators illuminated, including the ABS, Service ESC, and brake system lights. Once the brake system engaged, I was unable to release it or drive the vehicle any further.
All connected services do not work. The car cannot receive any updates to software/hardware posing potential safety issues. There was no warning. They all just stopped working. The vehicle was brought to the dealer in the beginning of October 2025 and I still do not have a fix or solution or potential timeline.
Initially, the engine would intermittently fail to start and at times would not start at all. I took the vehicle to a certified Chevrolet service center, where the battery was tested and found to be functioning properly. They later concluded that a faulty front-view camera was disrupting the electrical system and ordered a replacement (my first visit was Friday, 9/26/25). I took the car home for the weekend due to family obligations. On Monday, 9/29, while driving back to the service center, the engine suddenly shut off on a local road. The brakes went completely to the floor for 3–5 seconds before the engine restarted—just before I nearly collided with another vehicle at a red light. I reported this immediately, and the dealership kept the car for further testing. On Thursday, 10/2, they informed me they found no additional issues and believed the camera was the root cause. However, the problem persisted. On Sunday, 10/5, while stopped at a red light at Hawthorn St. and Memorial Dr., the engine shut off again as I began to accelerate. The brakes sank to the floor, and I had no steering control for approximately 5–7 seconds before the vehicle restarted. My wife and I were extremely shaken, especially with our children in the car. On Monday, 10/6, we contacted roadside assistance to tow the vehicle back to the service center. After additional testing, we were informed that the battery had failed this time and was replaced. However, replacing the battery does not reassure us that the engine and braking system will not fail again while driving, or the brake failure would happen again when the battery is low - which poses a serious safety risk to our family. When my wife called GM to report this issue, all they offered was 200 points worth of rewards....We originally bought this car for safety, but not this has been compromised and we no longer feel safe. Thank you for your attention to this matter. I am happy to provide any additional information if needed.
Service ESC & Brake Assist lights came on after only 4 months with the vehicle. The vehicle also abruptly slammed on the automatic brakes when backing into a parking spot with no obstacle present prior to the service lights indicating any issues. The vehicle was diagnosed with a failed brake master cylinder nearly two weeks ago, but the part is still on national backorder and will be stuck at the dealership for an undetermined amount of time with no loaners available. There are plenty other accounts of this same issue happening to other newly-bought '25 Traverses, and the N242482170 bulletin related to the '24 model hints at this being a recurring issue. This safety issue on a brand new vehicle without recognition/resolve is unacceptable.
the whole dashboard lit up with break and park indicator lit up in red on dashboard. warning flashed about automatic break system failure and ESC warning
Several alerts came on, including ABS light, SERVICE ESC, SERVICE BRAKE ASSIST, ADAPTIVE CRUISE CONTROL UNAVAILABLE. Blind spot alert stopped working. Dealership reset everything but the issue came back within a few hours. They said it may have something to do with the brake system
Dashboard started showing brake assist and esc needed service. Four lights lit up: brake, abs, traction, and collision
Showing 1–20 of 32 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026