OnStar Phone Number

OnStar Phone number helpline is available 24 hours a day, 7 days a week for consumers to get support. Calling OnStar toll free number is best option to get your problem solved.

onstar phone number

OnStar Toll Free Number

1.888.466.7827Customer Service

Calling OnStar phone number is one of the best ways to contact OnStar Services, Using this toll free number, you can directly speak with a customer care executive within a few seconds.

You can call 1.888.466.7827 this helplines are open 24 hours a day, 7 days a week.

Other Phone Numbers

Customer service1.888.466.7827
TTY for Hearing/Speech Impaired1.877.248.2080

OnStar’s Best Toll-Free/800 Phone Number

Call 1.888.466.7827

This is OnStar’s best customer service phone number that you can use. Using this toll free 800 number, you can directly contact the OnStar customer agent. You can use this number for various tasks such as

  • Account Access
  • Payments
  • Plans & Pricing
  • Emergency Services
  • Cancel Account
  • Transfer an account
  • Special Assistance
  • Locked Out of Vehicle
  • A different issue

OnStar Head Office Phone Number

Corporate Head office address of OnStar.

400 Renaissance Center Detroit, MI 48265

For any general inquiries, please contact OnStar head office number : (248)588-6050

General Problems or Reasons that OnStar Customers Calling

  • Which vehicles have OnStar?
  • How do I cancel my account?
  • Can I transfer an account?
  • How do I activate or renew my account?
  • How do I report a concern with my OnStar services?
  • Can I mail my payment?
  • How much does OnStar cost?
  • What payment options are available for OnStar?
  • How can I get a refund?
  • What is my OnStar PIN?

Common Problem Categories

  • Cancel Service
  • Payments
  • Active / Transfer Account
  • Refund

Activate or Renew Account

You can manage your account and active connected services online by visiting your vehicle Owner Center or calling 1.888.4ONSTAR (1.888.466.7827).

OnStar Payment Department

If you have any problem or query regarding this department to visit on Payment department webpage.

Cancel Account

If at any time you wish to cancel your OnStar service, push your blue OnStar button to speak with an Advisor or call 1.888.4ONSTAR (1.888.466.7827). You cannot cancel your service online.

Reference Link



Why is OnStar being discontinued?
The reason for this change is the upgrade of cellular carriers from a 2G network to a 4G or 5G connectivity. As older GM vehicles use a 2G connection, these cars will lose their in-car OnStar services. In the US, most major network providers will complete the transition from the 2G network in December 2022.

What services do I get with OnStar?
Welcome to OnStar. Where you can get Roadside Assistance* or navigation when you need it, Emergency Services* 24/7, and a vehicle mobile app* that connects you to your car from anywhere. You’ll even discover hands-free driving with Super CruiseTM* and OnStar Smart Driver* to help you boost your safe driving skills.

Can I get OnStar for free?
Here’s how: It starts with your free 30-day OnStar® trial. You’re going to love the experience. So during that 30 days, choose a monthly renewing plan. When you do, the next two months of that plan are complimentary for eligible vehicles* — it will start right after your 1-month trial ends.

Is OnStar exclusive to GM?
Since 2014 OnStar offers LTE Wi-Fi service on select GM cars. Starting June 14, 2021, the OnStar Guardian app was made available to any driver in the United States or Canada.

More Ways to Contact OnStar

All Contacts of OnStar
OnStar Customer Service
Contact OnStar Through Social Media
OnStar Email Support
Help Pages Support
OnStar Corporate Office
OnStar Hours
Make Complaint to OnStar
Login in to OnStar

OnStar Customer Reviews

Average rating:  
 1 reviews
 by jolly on OnStar

My cell phone and banking information was stolen by an employee who was working with me. I had no way to contact my bank so
I figured Onstar. Could help. Thankfully Kevin at Onstar helped me. Thank you so much