Forum Discussion
OnStar Module Broke
Brought my 2023 Yukon XL with 38K miles in to fix a recall and when I got it back now my “telematic control module/OnStar module” is broken and needs to be replaced. Dealer is telling me it will cost $900 and they have no idea when the part would even be in? This is ridiculous, not only should I not have to pay for this, but it shouldn’t have broke and if it needs fixing it should be done immediately.
52 Replies
I have a Sierra 1500 Denali Ultimate 2022; the module failed yesterday. I called OnStar to find a solution. I was surprised to learn that they don't have knowledge or a position on this issue. I canceled my subscription. There is no timeline to fix it.
How disappointing after overpaying for this truck. This level of service is what makes me change brands.
We never intend to disappoint our valued Members and understand your desire for repairs to your module, Amas. Our team would like to learn more of what you have encountered so that we may determine how to best proceed and potentially connect to your involved dealership. Please send us a private message to OnStar_Support so we can look into this further. Just select the envelope icon at the top right of your screen to get started.
My OnStar failed 2 months ago. The dealer (Henna in Austin Tx) has had my Silverado EV for 6 weeks waiting on the telematics part. They won't let me drive the truck until the part comes in because they say GM won't pay them to put the truck back together then take it apart again.
This is not the Silverado EV experience we wish for you to have. Rest assured, you did the right thing by bringing these module concern to the attention of your dealer, as they are in the best position to complete the proper repairs and guide you through this process. If you would like an additional layer of support alongside the technicians, please feel free to private message OnStar_Support with additional details. Just select the envelope icon at the top right of your screen to get started.
I just bought a 2021 Yukon SLT with 69,000 miles on it. 9/25/2025. Got home and went to register my onstar and there is no green light. Looked on a coulpe forums and said to check all the fuses, did that to no avail. After doing some more reading and with all the others reporting I guess I have a bad module. You would think paying 50,000 for a vehicle everything would work. Of course the dealership is ghosting me now. If this is that much of a problem there should be a recall. Especially if its a safety issue. I’m sure onstar is losing money, who is gonna pay a subscription if you cant ever connect. VERY FRUSTRATING!!!!
Hello there, Scott. Your frustration is completely understandable as we'd expect the same after purchasing a 2021 Yukon. If you are having some troubles contacting your dealer, let us be the connection that can aid in setting up a diagnosis appointment to see what is going on with your OnStar services. If interested, please send a private message to OnStar_Support so we can look into this further. Just select the envelope icon at the top right of your screen to get started.
I was able to get in touch with the Service department, It will be a month just to get it in and look at it, but the dealership itself, the salesman or finance dept, has nothing to say so far. I will probably not ever deal with this dealer again.
Here is the NHTSA Safety Complaint form again if you need to report your module. It is a safety hazard especially if your vehicle SHUTS DOWN MID DRIVE… National Highway Traffic Safety Administration
I also contacted the law firm and left my information with Michelle.
2158753000based in Philadelphia. Call them! The more people that call and leave their information the more recognition this will get! Let’s do this!
This is the latest response I got from OnStar. What a joke they are!
We understand your frustration, Carla. Please know, that when an attorney is hired, our customer care teams will no longer be able to assist with your concern. We do see that you were referred to your dealer by your case advisor, and to reach back out to them if you had any questions or need further assistance. If you needed any further assistance, we recommend reconnecting with them by calling 1-888-4ONSTAR (1-888-466-7827) or push the blue OnStar button inside you vehicle. I told them. YOU HAVe BEEN NO HELP. I HAVE CALLED AND HELLO- THE BLUE ONSTAR BUTTON DOESN;T WORK!!!
https://www.nhtsa.gov/report-a-safety-problem
REPORT YOUR MODULES TO THIS LINK!!!
NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION!!!I think we all can see this is happening to many owners, the common response is how surprised they are and please contact to assist. I save you the trouble they will do absolutely nothing, it’s a run around.
Yeah OnStar as a company is a complete joke. They use cheap parts and when an abundance of them start going out they don’t own up to it. I’ve seen class actions like this for other things.
My 2025 Yukon AT4 with 900 miles module failed. I had it for three weeks. No ETA and it’s been at the dealer for 6 weeks. I don’t know what to do.
This is the latest response I got from OnStar. What a joke they are!
We understand your frustration, Carla. Please know, that when an attorney is hired, our customer care teams will no longer be able to assist with your concern. We do see that you were referred to your dealer by your case advisor, and to reach back out to them if you had any questions or need further assistance. If you needed any further assistance, we recommend reconnecting with them by calling 1-888-4ONSTAR (1-888-466-7827) or push the blue OnStar button inside you vehicle. I told them. YOU HAVe BEEN NO HELP. I HAVE CALLED AND HELLO- THE BLUE ONSTAR BUTTON DOESN;T WORK!!!
Wow! Is that a threat? You’re still a paying customer for their service and they do not have the right to refuse you assistance just because you are consulting with an attorney about a particular issue… Their empty threats won’t make a difference anyway because they can’t and won’t help. I tried to get assistance from them as well, in the infamous “PRIVATE” chats, and after sending them quotes, giving them the dealership info, and sending them all of the transcripts of conversations I had with We Are Listening GM Representatives, they finally told me they couldn’t help me because my warranty wouldn’t cover the repair and that I was out of warranty anyway. So don’t feel bad… The care team doesn’t care ANYWAY!
What i did i stop using onstar cancel my subscription and since lot of vehicle have same issue and no recall from GM issue , its their faulty equipment and now they are wasting our time at dealerships , what a decline GM , i wrote 6 7 month ago and issue is still there ,
I have a 22 Yukon XL Denali and when it hit 38K miles as well, the Telematic Control Module ALSO stopped working. I contacted the dealer and they informed me that I would need to bring it in for a diagnostic test, but that it was around $800-900 to replace. My car just ran out of the warranty. So I have just gone without. Today, my dealer sent a mobile technician to my home to look into a recall for an over-the-air update, that could potentially drain the battery affecting vehicle performance. They were not able to update my vehicle becuase of the Telematic Control Module is not working. Now that I am reading that EVERYONE has had the same issue, I agree that GM should be replacing these at no charge. What a mess! Now we also have to deal with the fear of a sudden loss of propulsion. I would truly appreciate if GM would address this issues for us.
Our team would like to assist alongside your certified GMC dealership to the best of our abilities. While we cannot expedite parts, or make any guarantees related to warranties, we can provide open communication and assistance alongside your dealer throughout the repair process. So we may learn more, please send a private message to OnStar_Support.