Forum Discussion
Error message in DIC shows "Service Driver Assist System"
I have had constant issues with my SC since the download update in May, 2025. One dealer had the mechanic replicate this issue of it shutting off mid lane change and swerving back but they could not find the reason. They got corporate involved and magically came back with, we can find no issues and it works as intended. I complained relentlessly to GM and got the service driver assist system and the shed to look at it again. After extensive driving by the mechanic over 2 weeks it acted up on the mechanic they talked work GM corporate and magically came back again saying nothing is won't because they came find any failed part. They gave it back to me last week and said to drive it again and see if it acts up. Good luck. GM is losing a 40 year customer with this lack of care, concern. This was on a 24 GMC Sierra ultimate
One more word of advice. If your state is a one party recording state, start recording every conversation.
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