Navigational (global Positioning System) Gps Problems of 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.

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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.

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.

Telematics module failure. Vehicle is no longer able to provide gps location. This is rendered all safety features and onstar features for accident detection useless. Dealer states parts are on backorder with no eta. Calls the gm result in no estimated eta or part availability.

This car is equipped with a telematics module that feeds information to navigation system, blue cruise hands-off driving, and provides speed limit information in a heads-up display based on map data. The same module also controls connectivity to on-star, a safety monitoring service. There appears to be a bug in the software whereby the module doesn't appropriately initialized properly. This has several effects. The onstar system ceases to function (and the attendant feature of calling emergency services in a collision). The bug also causes false gps coordinate data to be fed to the car; since the reporting of the speed limit and other alerts are based on this data, along with the blue cruise hands-off driving, the driver is presented with false information about the speed limit on the current road (instead using data about the road at the false gps coordinates). If using guidance, the guidance presents the driver with false and confusing directions (which change frequently as the system believes the driver is in a different place). This bug has happened about 6 times in the past 6 months. There's no mechanism to reset the unit other than disconnecting the battery or fuse. The attached file shows a typical event. The guidance clearly shows the car in the middle of the charles river in boston, and the navigation system is instructing the driver to get on memorial drive. The hud (not shown) indicates that the current speed limit is 20 mph. This picture was taken while on interstate 93 in medford MA (speed limit 65 mph).

Telematics module failure. Causes gps to provide erroneous navigation prior to complete failure. Started as 1/2 mile, then grew to over 30 mile deviation from actual location. The module also takes out several safety and monitoring systems monitored by onstar. All in-car communications are lost, which means driver has to revert to using a cell phone directly for basic functions proved through infotainment system.

The vehicle had a fault in its gps and it also had no communication with emergency assistance. This also caused battery problems that generated on two occasions that the vehicle did not start.

Lcd screen as part of the infotainment system blanks out then repeatedly restarts. This goes for the entire drive. The gps is not picking up the correct temperature and reports in celsius not fahrenheit. I'm not able to use any of the infotainment features including not being able to use the phone feature. Also the radio volume increases and decreases on its own. All of this is very distracting as I drive.

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First time owner of this vehicle. The end of June, 2014 began noticing that the gps would not save destinations when traveling, would have to reenter address anytime the ignition was turned off and back on. Shortly after this, the clock stopped working, when the time was corrected, if would reset after ignition was turned off and back on to the incorrect time. The bluetooth also began randomly disconnecting and would not connect anymore. Sept. 24th, the vehicle was brought to dealership where purchased to see what was wrong. Owner was told the entire navigation system would have to be replaced, for quoted $1300. Owner not satisfied, was told that it was a defect from the manufacturer, and that there was bad wiring. Owner feels that gm should cover the defective part. If bad wiring exists, this could be a safety hazard. Owner also found service bulletin pi-0285-d, which was consistent with the problems that had been occurring. Due to the fact that the owner did not purchase an extended warranty, gm will only cover a percentage of the cost to replace the defective part.

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