My 2024 Equinox EV 2RS (Purchased brand new in November '24, only 1,568 miles on to-date) is now in the dealership for the third time due to what was thought to be a 12v battery problem. Turns out, it was a faulty Telematic Control Module that needs replacing, and the dealership that's working on it says GM has no timetable/ETA for the part?! The amount of posts on here reflecting how frequently this is happening should make GM want to have THOUSANDS of these parts on hand for immediate deployment, not arbitrarily informing dealerships, "There's no ETA." I'm a new mom and back to work for the first time since giving birth in October, and being unable to count on a vehicle to simply work is beyond defeating.

GMC Sierra. Bad telematics module. No ETA from GM or the alleged manufacturer of the module. Also, no loaner vehicles. Unacceptable! They told me it isn’t safe to drive…after I questioned them, now all of a sudden it’s “ok to drive”. This issue seems like a class action lawsuit.

We are currently going through the EXACT SAME ISSUE AND EXPERIENCE!!! We purchased our 2023 Yukon Denali last July and in November our OnStar as well as Wifi and other features quit working. These are one of the main features why we bought the vehicle. We have had to take it to the dealer 5-6 times already and it's the same song and dance, the part is on back order with no ETA. How is there not a recall already made by GM? Then to top it all off, we had to have the Yukon towed last week because it would not go into gear due to this model. So just like others, we are paying for a vehicle we can't use and an On-Star subscription that we can't use. This is extremely inconvenience and frustrating because we don't even feel safe with the vehicle anymore. Please GM figure our a solution for not just us but everyone else too!!

I'm have the same problem. My 2024 Equinox Ev 2RS has been at the dealership for 10 days now and the told me there is ETA for the part.

Same exact thing here on my 2025 Silverado.

Same for my 2022 Chevy Tahoe Z71 -everyone I see on here has been waiting months. Only 1 person so far that I saw got one after a couple months.

Telematic Control Module needs replacement, but backordered with no ETA?! UNACCEPTABLE

99 Replies

Jr3660
New Contributor II
20 days ago
Same issue with my ‘22 Sierra. OTA’s have never worked, I’ve had to take into the dealer many times for them to do them. Having a complete telematics failure now, OnStar confirmed truck is offline and I’m paying for th connected plan. TCU seem to be a complete dud. We need a class action here.
- Advisor_Brendan
  Moderator
  19 days ago
  Send us a private message with more details including your name, VIN, email, mileage and dealership at your earliest convenience, @Jr3660. We can imagine these concerns with your Sierra to be frustrating, and we would like to learn more about any ways we may offer support while your truck is addressed. Just select the envelope icon at the top right of your screen to start. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.
  - Jr3660
    New Contributor II
    19 days ago
    Hi Brendan,
    
    Thank you for reaching out. I have sent a private message and am also posting here without personal details.
    
    I am experiencing a complete telematics failure on my 2022 GMC Sierra Denali 6.2L.
    
    Symptoms:
    - OnStar blue button unresponsive
    - Vehicle Wi-Fi hotspot disabled and grayed out
    - OnStar has confirmed the truck is offline
    - OTA updates have never worked since ownership
    - GPS and connected services not functioning
    
    Troubleshooting completed:
    - Vehicle sleep reset
    - Battery disconnect reset
    - Remote reset attempted by OnStar
    
    The system remains non-functional and I am paying for connected services I cannot use. Based on troubleshooting this appears consistent with a telematics control module failure.
    
    Mileage approximately 33000.
    
    I am scheduled for dealer diagnosis tomorrow and wanted to see what support or guidance GM or OnStar may be able to provide.
    
    Thank you.