Forum Discussion
Error message in DIC shows "Service Driver Assist System"
Purchased a New 2024 CT4. Super Cruise & Lane Keep do not work. Called OnStar and they confirmed my account active and the highways were Super Cruise compatible. Set adaptive cruise and then Super cruise button but no white steering wheel icon appears. The DIC shows "Service Driver Assist System" at start-up.
10 Replies
I am experiencing the same issues with 2025 Sierra 1500 Denali Ultimate. DIC shows "Service Driver Assist System" at start-up and Super Cruise does not work. I have verified via OnStar app that account and services are active. When using Super Cruise I receive a message that no connection available. I am logged into Google and able to use Google Maps.
eejd : Is there a fix?
eejd: Does the Lane Assist button need to be on to use Super Cruise?
Firstly, our team would like to take this moment to congratulate you on the purchase of your new 2024 Cadillac CT4. We are happy to welcome you to both the Cadillac and OnStar families. We're sorry to hear that you've been having troubles engaging your vehicles' Super Cruise functions. Our team would like the opportunity to look into this alongside you and your preferred dealership in order to best ensure that these service difficulties are resolved and restored in as timely a manner as possible. When you see this, please send an email with these details to socialmedia@gm.com, with, "ATTN: OS Community/dasto," in the subject line so that we can locate your message. We're looking forward to receiving your message and providing further support on this matter.
Today (12/30/2024) I went to the Sebring Cadillac dealer and they set an appointment for January 14th to look at my car.
It sounds like you're on the right track to have these concerns addressed and resolved as quickly as possible. Our team would be more than happy provide an added layer of support between yourself and the service team through this process. If you would like to proceed with this assistance, kindly send us an email with the instructions from out previous message. We're looking forward to seeing you out there using Super Cruise in your new Cadillac. Our team will keep an eye on our inbox.
Status: Went to my appointment at dealer on Jan 14th. Dealer has ordered a part.
We're glad to know that these concerns are being actively addressed by our friends at Sebring Cadillac. Our team is confident in their ability to get you back on the road with the Cadillac you love and rely on in no time. If at any point you decide that you'd like an additional layer of support between yourself and the dealer during the repair process, please don't hesitate to send us an email (with the appropriate subject that we mentioned in our previous message) so that we may connect further on this matter. Our team is always happy to help our dedicated and loyal members. We hope to hear from you soon.
My 2024 CT4 has been at Alan Jay Cadillac since January 24th and no news on progress of a solution for non-functional Super Cruise since purchase.
Thank you for keeping us in the loop on this matter with your 2024 CT4. We can certainly understand your frustration over not receiving any updates on the status of your Cadillac. Our team would be happy to reach out to the service department on your behalf in order to provide you with the most current information on the status of these repairs. In order to proceed, please send us an email with these details to socialmedia@gm.com with, "ATTN:OS Community/dasto," so that we may continue to best support you through this process. Our team hopes to hear from you soon.