How to Reach OnStar Customer Service

You can reach OnStar customer service by dialing their 800 support number which is 1-888-466-7827. Live customer service is available via this number 24/7..

Below is a phone menu you can use to reach real human from customer service. Please note that some of the live support options may change since the time we called OnStar last time:

  • Press 1: For emergencies, roadside assistance, door unlocked or stolen vehicle missing person
  • Press 2: For service plan maintenance including purchase data plans and free calling minutes or to renew your service plan billing and cancellation inquiries
  • Press 3: For technical assistance

OnStar Customer Service on Social Networks

You can also reach OnStar customer service via social networks. You can reach OnStar Facebook page at or via OnStar Twitter page at

OnStar Brief History

OnStar was founded in 1996. Its first headquarters were located in .

OnStar Customer Service Options

OnStar Online Customer Service and Other Useful Links

OnStar Phone Numbers

    For customer service dial 1-888-466-7827. OnStar Customer Support Phone

  • Call OnStar 800 number via 1-888-466-7827

OnStar Customer Service Working Hours

You can call OnStar customer service and reach live customer service agent during following working hours: 24/7. Call center phone number is 1-888-466-7827.

Read more information about OnStar.