Forum Discussion
Error message in DIC shows "Service Driver Assist System"
Similar problem on 2025 Sierra Denali Ultimate. Have appointment on 22 Dec 25. This will the third time to have truck in for the problem in the past 6 months. Just under 10,000 miles. I’m not one to be satisfied with repetitive problem with no apparent solution. Less frustrating to just trade it off!
Our team appreciates you bringing this concern with your 2025 GMC Sierra Denali Ultimate's Driver Assist System, @Rockb. We understand how frustrating it can be when difficulties persist without a satisfactory resolution and would be more than happy to help make sure that this trouble is appropriately identified and resolved by your preferred GMC dealership. When you have a moment, please send a private message with some more details to OnStar_Support to best proceed with this support. You may click the envelope icon at the top right of your screen to begin. Our team will be keeping an eye out for your response and hopes to connect again very soon.