Forum Discussion
Defective Telematics Module 2025 Yukon Denali!
Unfortunately, my 2025 Yukon Denali keeps giving me nothing but problems.
My truck has been without OnStar service for the last 20 days because of DEFECTIVE Telematics module and unfortunately the dealer can only provide the Backorder with no ETA for the modules to become available.
This means no OnStar, No emergency support in case of an accident, Super Cruise, Wi-Fi, Entertainment System and a BIG Check Engine light!!! (thanks for the Check Engine Light GMC)!!
GMC / Onstar need to step up and provide the parts and service to the customers, this is a not a dealer problem, this is a known quality repetitive issue that must be resolved Immediately.
It's amazing the number of complaints that can be found in this community from owners having the same problem.
6 Replies
My suburban and Yukon are same. GMC customer support enthusiastically called me, and the dealership enthusiastically helped me file a claim with GMC. However, GMC denied my claim to replace telecom module . I recently reviewed numerous Chevrolet and GMC Carfax records and found that most vehicles had their communication modules replaced free of charge through a friend program. This is a clear product defect, yet GMC not only failed to disclose this information, but is charging some owners for it. If GMC charges any owner whose communication module is damaged, I recommend that they obtain a lawyer to represent them and sue GMC for compensation.
After waiting months for resolution for my damaged Telematics module, the quick answer is there is no support, parts, lack of will to help or intention from GMC and On-Star to solve the problem.
The only way we may find any resolution will be will a Class Action Lawsuit against whoever is responsible for this clown party!
some weeks ago, I had a real car emergency, and thanks to my damaged Telematics Module, we didn't have any support or way to call for help!!
All information has been documented to proceed accordingly!!
We're saddened to hear of thar emergency you experienced. Our team be glad to document your experience. We do see that we currently have an open conversation, please feel free to send us a private message there with more information.
Our team regrets to learn that you've encountered such difficulties with the OnStar hardware in the 2025 GMC Yukon Denali that you love and rely on, @Chobe77. We recognize how critical these connected services are to your overall experience and can understand your current dissatisfaction. OnStar and GMC want a better experience for our Members. It would be our pleasure to learn more about this situation to better assess how we may best assist you alongside your participating dealership to ensure the quickest resolution to this trouble and restore your OnStar service. To proceed with this support, we kindly ask that you send us a private message with your OnStar account number and/or VIN, as well as the name of your participating dealership. You only need to select the envelope icon at the top right of your screen to get started. When creating a new message, please be sure to enter Advisor_Jack to get connected directly to me. Our team hopes to hear from you again very soon. 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
I tried to send you a private message, but the window would never close and show that the message was sent.
Can you please confirm if you received my message.
Thank You.
Thank you for following up with us here, @Chobe77. Our team has not received a private message from you at this time. We recommend refreshing your browser before attempting to send it again. Our team will be keeping an eye out for your message and hopes to from you again very soon.