2025 Chevrolet Traverse Problems

The contact owns a 2025 Chevrolet Traverse. While driving 5 MPH, the contact attempted to depress the brake pedal, but the vehicle failed to slow down. The message "Limited Braking - No Assistance Braking" was displayed. The vehicle was restarted, and the contact continued driving. The vehicle was taken to a dealer and was awaiting a diagnostic test. The contact was advised that the OnStar modules needed to be replaced, but the vehicle was not repaired. The failure mileage was 16,000.

This started happening about two weeks ago. My check engine light came on and my OBD scanner said a NOX sensor code showed. I told the dealership and I guess they cleared the code and it hasn’t reappeared but the reduced acceleration has maintained. It was [XXX] I had just go of work and needed gas. While traveling to the gas station I got notification that my acceleration was being reduced and it was very noticeable. After arriving and pumping gas, I started the car and got 3 additional messages. The car aside my brake assist and ESC needed service, my ABS system was off, and my forward collision system was off. While driving, I noticed that the brakes were still working but acceleration was still being reduced. This is an everyday use car and I have a 6 children who I don’t feel are safe anymore in the car. Not being able to utilize the brakes and the reduced acceleration is very concerning especially when in traffic. I have a little over 27500 miles on the car. It just came from the dealership to get the telematics module replaced last week because it went out about a month ago. I’ve only had this car a year and it seems like the issues are becoming more common everyday. I will be taking care back to dealership tomorrow. 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 while driving 35 MPH, the Forward Collision Avoidance system activated, and the vehicle abruptly stopped. The Forward Collision Avoidance message was displayed. The contact stated that there were no vehicles nearby during the failure. The contact sustained back pain, right and left shoulders and neck pain due to the abrupt stop. The failure was persistent. The contact deactivated the Forward Collision Avoidance feature and then reactivated the feature. The contact stated that while restarting the vehicle the Forward Collision Avoidance feature was reset. The manufacturer was contacted by phone and a case was filed. The failure mileage was approximately 12,000.

Sudden slamming on the brake automatically when in reverse and there is nothing around the car to cause this. Has happened many times The car will alert that something is too close when turning right by there is nothing there. It is intermittent. When you start the car it the motor reves up very high and will stay there until you push the gas and then it quiets down. This is usually the first start of the day. High and rough idle Super hard intermittent transmission shift or down shifting while normal driving. It jerks really hard and sometime it’s so hard it throws you forward like the brake is being applied. Symbol intermittently shows up on dash. Then goes away after the car has been turned off and restarted. Brakes squeal bad. Acceleration reduction message then check engine light came on 8/30. Roaring loud noise before the light came on. Put 1 gallon coolant in it and light went off. Now runs and idles high.

-Electrical Hazard due to water leaking in the cabin from rearview mirror, overhead speakers, back light etc. -Water leaking on electrical components -Leak has been confirmed by mechanic at dealer -Has been inspected by Chevrolet -No warning lights or signals

This started happening about two weeks ago. My check engine light came on and my OBD scanner said a NOX sensor code showed. I told the dealership and I guess they cleared the code and it hasn’t reappeared but the reduced acceleration has maintained. It was [XXX] I had just go of work and needed gas. While traveling to the gas station I got notification that my acceleration was being reduced and it was very noticeable. After arriving and pumping gas, I started the car and got 3 additional messages. The car aside my brake assist and ESC needed service, my ABS system was off, and my forward collision system was off. While driving, I noticed that the brakes were still working but acceleration was still being reduced. This is an everyday use car and I have a 6 children who I don’t feel are safe anymore in the car. Not being able to utilize the brakes and the reduced acceleration is very concerning especially when in traffic. I have a little over 27500 miles on the car. It just came from the dealership to get the telematics module replaced last week because it went out about a month ago. I’ve only had this car a year and it seems like the issues are becoming more common everyday. I will be taking care back to dealership tomorrow. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Sudden slamming on the brake automatically when in reverse and there is nothing around the car to cause this. Has happened many times The car will alert that something is too close when turning right by there is nothing there. It is intermittent. When you start the car it the motor reves up very high and will stay there until you push the gas and then it quiets down. This is usually the first start of the day. High and rough idle Super hard intermittent transmission shift or down shifting while normal driving. It jerks really hard and sometime it’s so hard it throws you forward like the brake is being applied. Symbol intermittently shows up on dash. Then goes away after the car has been turned off and restarted. Brakes squeal bad. Acceleration reduction message then check engine light came on 8/30. Roaring loud noise before the light came on. Put 1 gallon coolant in it and light went off. Now runs and idles high.

NHTSA Defect Report (Initial Portal Filing) Manufacturer Target: General Motors (GM) Filer: [XXX] Classification: Mechanical Defect & Administrative Evasion Narrative for Submission I am filing this formal defect report regarding a catastrophic, systemic safety failure present in the 2025 Chevrolet Traverse architecture (VIN: [XXX]), manufactured by General Motors. The vehicle was originally purchased at AutoNation Timonium. THE SAFETY DEFECT AND TELEMETRY PROOF On March 18, 2026, the vehicle suffered a total failure of the transmission and drivetrain systems. It was immediately surrendered to Preston Chevrolet, where it remained completely out of service for 34 consecutive days. GM's own OnStar Diagnostic Telemetry automatically dispatched critical fault alerts while the vehicle was stranded, explicitly logging the following irrefutable failure codes: DTC U1962 (PCM - Engine and Transmission System): Warning stated: "System transferring power to the drive wheels not performing as expected." This indicates a catastrophic decoupling or failure to transfer motive power. If this failure occurs at highway speeds, it results in a total loss of propulsion, creating an extreme rear-end collision hazard. DTC U0452 (VIU - OnStar System): A simultaneous failure in the Wireless Communication and Safety system, meaning that when the drivetrain catastrophically fails, the vehicle's automated emergency SOS and crash-reporting telemetry is actively blocked or compromised. ELEVATION TO ADMINISTRATIVE EVASION General Motors and its authorized dealer network were provided with formal written notice of this defect. The 30-day statutory right to cure window fully expired without any mechanical resolution. Rather than deploying engineering solutions to rectify the severe safety defects they released into the public domain, GM has instead deployed aggressive legal maneuvers designed to evade accountability. Continued text in OFFICIAL_NHTSA_DEFECT_REPORT PDF INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

The car starts it self and then shuts off all by it self. It has done this twice that we know of. Its impossible to do this even if your keys are in your pocket as you have to hit 3 different buttons to do this. I am not the only one having this issue as there are people complaining on FB that their car does the same thing.

Vehicle had large puddle of antifreeze under drivers front of vehicle. Antifreeze reservoir was completely empty upon opening the hood. There is an active drip of antifreeze under the car as displayed by placing a clean piece of cardboard under the vehicle. There were no indicator lights displaying a problem on the dashboard. Upon using an endoscopic camera, there is an active leak at the hose on the radiator. If I had not noticed the active leak, I would have driven the vehicle and overheated the engine with the possibility of seizing the engine. Vehicle is in service currently at Superior Chevrolet. There is a known issue under Special Bulletin N262546590 for the seal at the quick connect inlet on the radiator.

The shark fin antenna cover became loose. The antenna then fell off at some point while driving. This coming off while driving poses a risk to others on the road as it may have fallen off and hit someone else. The only “warning” it gave was stating the emergency call system failure. When googling I found out what the problem may be from. After looking further there are multiple Chevy traverse owners with the same issue after going through a car wash.

Purchased the traverse January 10, 2026 with almost 26k miles on it. Approximately one month later, only 1200 miles or so into owning it, the shark fin antenna cover came off and is missing. It’s not the entire antenna that is hooked into the car, it’s only the plastic cover that covers up the electronics. This plastic piece randomly flying off the car put other motorists at risk, due to the plastic cover potentially striking another vehicles windshield distracting them from keeping their eyes on the roadway, striking another motorists vehicle causing damage to said vehicle, or even striking a person walking down the street potentially resulting in physical harm! I have talked with GM dealerships about this issues along with reading that numerous people have had the same issue, and they have yet to fix the problem.

Onstar Module not working/backorder

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)

While driving the steering wheel will intermittently lock up or make it where you cannot turn the steering wheel at all. The collision sensors will go off and cause vehicle to lock the brakes up when you’re not even close to anything. Also, random messages will appear in dash as shift to neutral while driving ect. See pictures.

Warning light ‘Service Electronic Stability Control’ appeared 2 days ago. Vehicle feels unbalanced, steering wheel has excessive play (like driving a boat), and control is compromised. Mileage over 10,000. Safety concern due to difficulty handling.”

While driving on vacation approximately five hours away from home with my family, I suddenly heard a loud popping sound followed immediately by increased outside wind noise coming from the panoramic moonroof. Based on the sound, I suspected the moonroof glass had shattered. Because my family was in the vehicle, I intentionally did not open the interior sunshade, as I was concerned that broken glass could fall into the cabin and seriously injure my passengers. After safely pulling over, I inspected the roof from the outside and confirmed that the panoramic moonroof glass had completely shattered. During the drive back, the shattered glass panel completely detached from the vehicle and flew off. Fortunately, it landed in the grass and did not strike another vehicle or person, which could have resulted in a serious accident or injuries. Because this occurred over the weekend, I had no immediate access to repairs. To safely transport my family the five-hour drive back home, I had to temporarily cover the opening with a trash bag and tape to protect the vehicle’s interior and reduce exposure to the elements. After returning home, I contacted the dealership, provided photographs of the damage, and explained the circumstances. I was informed that the failure would not be covered under the vehicle’s warranty and that I would be responsible for the repair costs. I am extremely concerned that the moonroof shattered without any apparent impact from road debris or object. Had the interior sunshade been open at the time, pieces of broken glass could have fallen into the passenger compartment, potentially causing serious injuries to my family, including eye injuries or cuts. Additionally, when the glass panel detached from the vehicle, it could have struck another motorist or pedestrian, creating a significant safety hazard. I believe this incident represents a serious safety concern and request that this matter be thoroughly investigated and reconsidered for warranty coverage.

Beginning in May 2025, my 2025 Chevrolet Traverse began exhibiting a false “rear liftgate open” condition when the liftgate is fully closed. This defect triggers a continuous audible alarm that occurs before every drive and persists for the entire duration of the drive, stopping only when the vehicle is turned off. As a result of this defect, the rear windshield wiper and washer are disabled, eliminating rear visibility during rain and snow. The vehicle alarm system also cannot be armed, creating a security risk. The continuous alarm causes significant driver distraction, and the loss of rear visibility impairs safe operation of the vehicle, particularly in adverse weather. Minor children are frequent passengers, and the defect has occurred while they were in the vehicle. The vehicle has been presented to an authorized Chevrolet dealership on four separate occasions for the same issue. Multiple repair attempts, including diagnostics, software updates, component replacement, and latch assembly replacement, have failed to correct the defect. Because the alarm cannot be armed, the vehicle was left unsecured and was subsequently broken into, resulting in theft of personal property. General Motors has been notified and declined repurchase, directing me back to repeated diagnostics despite the unresolved safety-related defect. Problem Category: ☑ Electrical System ☑ Visibility / Wipers ☑ Warning Systems ☑ Vehicle Safet

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.

Owned brand new vehicle for 48 hours. Fuel injector failure on cylinder 4 at 120 miles on the dash. Check engine light was on. Vehicle is currently at dealership. Engine unreliable/unsafe. Dealer confirmed. Dealer stated up to 10 days waiting on parts. Unknown if further damage has been caused. Wife states vehicle had a rough idle. Diag code P0300, P050D.

I was in t-boned on the passenger side of my vehicle. All side air bags went off but did not deflate. I had to crawl onto my floor to get out of the vehicle. Also when the emergency collision park kicked in it locked my doors so had I been unconscious I would have been locked in the car.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at approximately 45 MPH through a green light, another vehicle failed to yield at 50 MPH for a red light due to being impaired, causing a collision in which the contact’s vehicle was T-boned. No warning lights were illuminated before the crash. The front and side curtain air bags failed to deploy. The contact reported that no injuries were immediately sustained, and no medical attention was provided at the scene. However, the contact was later transported to a local emergency facility and diagnosed with a back injury. A police report was filed.. The vehicle was towed to an independent mechanic, where it was diagnosed that the air bags, service brakes, and battery of the vehicle had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 13,000.

Name: [XXX] •Address: [XXX] •Phone: [XXX] •Email: [XXX] Date of Incident: October 7, 2025 Description of Problem: While driving our 2025 Chevrolet Traverse on October 7, 2025, our son was sitting in the third-row seat and somehow managed to buckle two seatbelts at once—one from the right side and one from the left—crossing them over his chest and neck. Once both belts were latched, they locked in place. When we tried to loosen one side, the opposite side only tightened further, causing him to be choked. We tried multiple ways to release the seatbelts, but the locking mechanism prevented any movement. Several adults tried to help, but no one could free him. We ultimately had to cut one of the seatbelts to safely release him. He was left with visible red marks on his neck, and the incident caused significant fear and distress. The seatbelts were crisscrossed, which explains why attempting to loosen one side made the other side tighten. This appears to be a dangerous design issue, as there was no safe or quick way to release the belts in this situation. We are deeply concerned that this design could pose a serious strangulation hazard to children or other passengers in the future. Attachments: •Photos showing the crisscrossed seatbelts •Photos showing the red marks on the neck after the incident We request that NHTSA review this complaint to determine if this is a vehicle safety defect and take any appropriate action to prevent similar incidents from occurring. 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 while driving approximately 70 MPH, the vehicle shifted into LIMP Mode, causing the vehicle to decelerate unintendedly. During the failure the headlights and the interior lights flashed and flickered, and the ABS, traction control, and several unknown messages were displayed. While depressing the brake pedal, the brake pedal extended to the floor and the vehicle failed to immediately stop. The vehicle was later towed to the local dealer who recharged the battery and performed a software update to the Crucial Control Module. The contact stated that three weeks later the same failure had reoccurred. The local dealer and manufacturer were notified of the failure. The failure mileage was 9,995.