2025 Chevrolet Equinox

I am submitting this letter to formally notify the NHTSA of a safety critical defect in my 2025 Chevrolet Equinox Activ starting on 12/9/25 involving the Telematics Control Module (TCM), GM part number 85669062. This defect results in intermittent or complete failure of essential OnStar safety functions, including Automatic Crash Response, emergency communication, and accurate GPS location reporting. During normal driving, the vehicle experiences the following failures: •Loss of telematics connectivity •Inability of OnStar services to initialize or maintain a connection •GPS location drift or inaccurate positioning •Failure to reliably transmit vehicle location or contact emergency services These failures occur without user action and under normal operating conditions. The defect directly impairs systems intended to provide crash detection and emergency communication. If a collision occurs, the vehicle may not contact emergency services or may transmit an incorrect location. This represents a loss of a safety system that General Motors advertises as part of the vehicle’s crash response capability. On December 9, 2025, my Chevrolet dealer confirmed that the Telematics Control Module had failed and requires replacement. General Motors has placed this part on national backorder with no estimated availability, leaving the vehicle in an unsafe condition with no available remedy. General Motors has not issued a recall, service bulletin, or customer satisfaction program addressing this defect. The absence of available replacement parts suggests a potential supplier level issue affecting multiple vehicles. Given the safety implications, part unavailability, and potential for a broader pattern of failures, I respectfully request that NHTSA: •Review this defect as a potential systemic issue •Evaluate whether similar failures are occurring in other GM vehicles •Consider opening a Preliminary Evaluation (PE) if warranted. Thank you.

Telematics unit in my Chevrolet equinox EV 2025 has failed. GPS/navigation/wifi does not work anymore. Calls to onStar for collision data / support in emergencies also do not work anymore. Also, basic features on the myChevrolet app to unlock/lock the car do not work. This happened gradually over time. Around 6 months after owning the vehicle, the GPS unit would sometimes randomly turn on/off and show my current location 1-2 miles away from my actual location. Then around 9 months after owning the vehicle, the unit as a whole failed and the whole tablet doesn’t work anymore. The dealer initially claimed that it was an issue with my onStar plan, but it is actually an issue with the telematics unit that needs to be replaced. This is a very well known problem is searched online across all newer GM vehicles that depend on Onstar.

The vehicle became completely disabled due to a sudden battery drain at approximately 5482 miles. I purchased the car with 2553 on it in May. The vehicle would not start a few times and had to be towed to the dealership on Friday Dec. 26, 2025. The dealer confirmed that the OnStar/telematics module is malfunctioning and continuously draining the battery. The defective module is on backorder with no estimated arrival date, leaving the vehicle unusable. They also do not know if they have a loaner for me. This creates a safety risk because the vehicle can become inoperable without warning, potentially stranding the driver. The issue has been reproduced and confirmed by the dealership. Prior to the failure, the OnStar system stopped functioning, but no warning lights appeared on the dashboard. My Chevy App stopped working 26 days ago as well. I now have a Loan payment to make for a car that isn't even working and brand new. Dealership doesn't know a timeframe either.

I am the owner of a 2025 Chevrolet Equinox EV and have experienced ongoing and unresolved issues with the vehicle’s connectivity systems — including OnStar, internet access, GPS functionality, and over-the-air (OTA) updates. The problem first began in late July 2025, when I suddenly lost both internet connectivity and GPS navigation. During that episode, I was unable to use the OnStar system or navigation tools. Although the issue self-corrected after a few days, the instability raised concerns. The issue returned later in the year, and I visited my local Chevrolet dealer on November 24th, 2025, where a reset was attempted. While temporarily effective, the problem recurred. A follow-up service appointment on December 8th, 2025, confirmed that the Telematics Communication Control Module had failed — the same hardware component that controls OnStar access, vehicle geo-location, navigation, and software updates. At that time, I was informed by the service advisor that several other EVs were experiencing the same issue and that the replacement part was on national backorder, with some customers waiting more than two months. I was not given a clear estimate of when the part would arrive. This issue has effectively disabled: All OnStar connectivity (a paid subscription service), The vehicle’s ability to receive manufacturer-recommended OTA software updates, GPS navigation and location services, including vehicle tracking — a feature relied upon by my insurance company. Given the widespread nature of this issue, the lack of available parts, and the critical role of these systems in vehicle safety and functionality, I believe this constitutes a serious safety and consumer-protection concern.

No component failures at this time. My dealer stated that the continued on/off of my check engine light is that of a " GM engineering flaw/ issue" without any remedy at this time. I have been advised to continue to drive the vehicle with check engine light on as no remedy is available at this time. The flaw was disclosed by GM in 4/2025, bought my vehicle in 6/25 - No remedy as of 12/12/2025 - This is more of an FYI than formal complaint.

Telematic Module System is malfunctions with a nationwide recall on the part. Chevy representatives have no date for when the part will be in. The computer system in the car is not working. I can't reach OnStar the internet I pay for doesn't work. My car has been in the service department for a month this year for the same problem and it's out again. Engineers from Chevy have worked on it as well. I need help with this situation. It's possible that the this failure could drain my battery causing it stop while driving. The service department and Chevy customer service just keep apologizing with no real dates on when this part will be in.