Forum Discussion
Onstar Module Needs Replaced
Onstar,
Mileage has nothing to do with the forced Onstar contact placed on 2023 models by GMC. The contract stated 3 years of service, there is no provision for a mileage limitation in the Onstar contract. GMC should supply a device that will provide the service for the contracted time frame regardless of mileage. Selling a 3-year non-refundable service implies 3 years of implied warranty of merchantability for the device supplying the service.
That does make sense! Mine started working on my 2022 Blazer, but our truck has something draining the battery 2023 $80000 vehicle! New battery, checked 5 times now, towed in, wouldn't even jump. What the heck is wrong with these trucks?
I have a 2023 Sierra 1500 with the Duramax. I have encountered the same issue. Came out to my truck one morning to find it DEAD. Was finally able to jump start it, but had to leave the cables connected for about 20 minutes.
When I took it to the local O'Reilly Auto Parts, I borrowed their scan tool and got a Diagnostic Trouble Code (DTC) of P262B - Control Module Power Off Timer Performance.
My truck is currently at the dealership to have the OnStar Telematics Module replaced (after waiting 7 months) and this is supposed to be addressed as well. I know there was an update that was supposed to address this, but it cannot be installed without a functional Telematics Module.
After having my telematics module replaced yesterday and talking with the service department, these vehicles do not "jump start" like older vehicles. You have to leave the jumper cables attached for awhile and let the battery build up a charge.
The first time my 2023 Sierra Denali was dead (the one with the bad telematics module), it took 20 min of having the cables connected to my 2024 Sierra AT4X before the Denali would start.