OnStar Help Pages is the best option when trying to contact OnStar customer service. You can contact via OnStar Customer FAQ, Forum, and Online Help.
Contact OnStar Help @ onstar.com/us/en/support
General Problems that OnStar Customers searching for
- Account Access
- Cancel Account
- Plans & Pricing
- Transfer an account
- Emergency Services
- Locked Out of Vehicle
Contacting OnStar Help Pages
This is the official customer support page of OnStar, which contains different options for contacting them about a variety of issues.
If you are looking for OnStar’s best customer help page or faq or forum, this is the best entry point.
OnStar Frequently Asked Questions
How do I report a concern with my OnStar services?
If you are an OnStar Member who is having trouble with your service, please give them a call at 1.888.4ONSTAR (1.888.466.7827).
How do I find my OnStar account number?
You can push your blue OnStar button, call 1.888.4ONSTAR, or refer to your Member card or OnStar monthly diagnostics report for your OnStar account number.
Can I mail my payment?
You can send your annual payment check to:
OnStar Service Plan Center
PO Box 77000
Detroit, MI 48277-0246
How can I get a refund?
Members who are eligible for a refund and request service cancellation will receive a prorated refund for charges made within the previous 30 days. Hands-Free Calling minute purchases are nonrefundable. If you no longer have possession of the vehicle with your active OnStar service plan, please call 1.888.4ONSTAR (1.888.466.7827). Canceling service cannot be done online.
What payment options are available for OnStar?
As an OnStar Member, you can pay for your plan annually or monthly or save money by paying for a multiyear service plan.
How can I cancel my OnStar service?
If at any time you wish to cancel your OnStar service, push your blue button to speak with an Advisor or call 1.888.4ONSTAR (1.888.466.7827). You cannot cancel your service online. If you let your service plan expire or choose to cancel it, your OnStar system will be deactivated. All services — including Automatic Crash Response and Emergency Services — will be shut off. Your vehicle won’t be able to connect with them for help, even in a crash.