Forum Discussion
OnStar Light Red - Service Driver Assist Message - '25 Sierra 1500 Denali Ultimate
I purchased a new '25 Sierra 1500 Denali Ultimate about a month ago. At about 900 miles I got a 'Service Driver Assist' message every time I started the truck, and the Supercruise function would not work. The light adjacent to the OnStar button was also red. Everything else was working fine.
Then after a few days, the OnStar suddenly light turned green again and Supercruise was fine again, no more Service Driver Assist message.
Thought I was in the clear but suddenly today the red light and the error message is back, no Supercruise.
I assume a hardware issue but if the module was dead would it work intermittently like this?
Frustrating as this is an $85k truck and these features were a key factor in my purchase decision.
10 Replies
Our team does understand your frustrations. Thank you kindly for bringing these technical concerns to our attention. To clarify, have you brought your Sierra into your certified GMC dealership for an appointment related to your OnStar hardware? Our team would like to help in any way that we can moving forward. If you need assistance alongside your service center, kindly send us a private message. Just 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_Helen to get connected directly to me.
Same issue. Dealer checked it and found nothing. Has been working no it doesn’t
We know how frustrating it can be when your concerns go unaddressed. Our team would be glad to connect and learn more about your concern with your OnStar and that message you are seeing. Please send us a private message, so we can look into this further. Just 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_Ahmed to get connected directly to me.
Mine does the exact same thing it’s so frustrating. Did they ever come up with a fix on yours?
We're sad to hear that you've been experiencing these concerns with your OnStar and Super Cruise. Our team would be glad to connect and look into this for you. 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
I have the exact same thing. Randomly it will come on and work the next day. When I bring it in to have it looked at, they cannot recreate the error. So when I make my next appointment, what can I tell them to specifically reference to fix this issue? It seems to me this cannot be new and not have a resolution.
Have the dealer look for a watchdog error. It is an error that can be intermittent and will force a system reboot depending on the parameters. This will cause the red light issue. It can reset itself especially after a restart of vehicle.
It can also indicate a hardware failure. If the tech doesn't actually troubleshoot, they may miss it.
For more info, Google "OnStar watchdog error"
We know how frustrating this concern with your OnStar must be. This is not the experience we strive to provide. We'd be glad to connect and learn more. To get started, 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. Please include your full contact information, VIN, mileage, and the name of your preferred dealership. 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.
Having similar issues with my Lyriq. Back to the dealer, who was of no help last time, again.
