AT&T Onstar customer service


As of my last knowledge update in September 2021, AT&T and OnStar were collaborating to provide connectivity services for OnStar-equipped vehicles. If you need customer service or support for OnStar services through AT&T, I recommend contacting OnStar directly, as they would be the primary point of contact for assistance related to their services.
AT&T and Onstar with recurring
AT&T and OnStar often work together to provide seamless connectivity and safety features for your vehicle. Many OnStar plans include data services powered by AT&T, which means your monthly bill might include charges from both companies. To manage your account and payments, you can typically use either the AT&T or OnStar customer portal. If you have questions about specific charges or need to modify your plan, it's recommended to contact either AT&T or OnStar directly for assistance.
Does OnStar use AT&T?
Yes
How do I cancel my AT&T connected car?.
Online: Visit the AT&T website and log in to your account. Look for options to manage or cancel connected car services.
Phone: Contact AT&T customer service directly. They can assist you with the cancellation process over the phone. You may need to provide your account information and the vehicle's identification number (VIN).
Visit a Store: If you prefer in-person assistance, you can visit an AT&T store. Bring necessary identification and your vehicle information.