My 2015 GMC Sierra 1500 Denali is having multiple issues. It randomly loses the nav points & paired phones I store can't find my thumb drive with my music on it.
Is there a replaceable battery for it to retain stored Data? If so how do you replace it. It is also randomly giving me error messages about the error with the driver assistance system. I said something to the service manager @
Joe ball gmc said to not cancel the error message and bring it in so they can see what the error code is. When I attempted to do just that they couldn't be bothered with it. Shutting the vehicle down clears said message. Really unhappy with the way they treated me. For the most part its the radar censors in the front bumper that act up when it's very cold or going through a car wash
