2025 CHEVROLET Equinox

My Equinox EV telematics module does not work. Prevents the use of navigation features and Onstar navigation features.

This complaint is to clarify and supplement a previous report. The issues began in August 2025, not September. Initially, the vehicle presented abnormal fuel range fluctuations, including while stationary, as well as intermittent “Key Missing” warnings while driving and display black spots. These issues were reported to dealerships and GM without resolution. Over time, the condition has progressively worsened, and additional symptoms have developed, including abnormal noises and, more recently, transmission hesitation during the initial gears, requiring me to reduce speed for the vehicle to respond properly. The escalation of these issues over time raises ongoing safety concerns.

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.

Check engine light was on after just sitting in the snow for two days. Dealer is saying that it is a fuel injector and something with the gas. I hope this fixes it.

My car threw on the check engine light and a note flashed on the screen and car just slowed down immediately. I had to press on the brakes really hard to get it home and then the transmission wouldn’t go in reverse. I took it to the dealer and they couldn’t duplicate the problem but said the battery contacts weren’t tight.

My daughter was driving and she said the check engine light started blinking and the car slowed down immediately. She had to press the gas to get it into a gas station.

- The telematics module is bad, resulting in vehicle having no connectivity (GPS, entertaintment system, updates) - The car has no other means of hands-free operation for navigation software (no CarPlay or similar phone projection technology) - GM is unable or unwilling to supply the parts for warranty repair. - It is illegal to use the phone while operating vehicle in my state (Florida)

The vehicle has ongoing and worsening electronic and safety-related issues. The fuel range and fuel economy fluctuate abnormally and frequently, sometimes even while the vehicle is stopped. The infotainment screen has experienced intermittent black areas/partial blackout while driving, affecting system reliability. Recently, the automatic transmission began hesitating during the initial gears, behaving abnormally and requiring me to reduce speed for the vehicle to respond properly. This occurs consistently. These issues have been reported multiple times to the dealership and GM with no resolution, and communication has stopped. I am concerned the vehicle is unsafe to drive and could fail unexpectedly.

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.