OnStar Complaints Number and Email Support

If you have a complaint or a question regarding the OnStar, Here you can find specific information about the OnStar complaints number, email & customer service. Which allows you to solve your problem or any of your questions?

Different ways to Contact OnStar

Way 1: Call the OnStar number 1.888.466.7827, if you have a complaint about a service and other related query.

Step 2: Here are the second ways to make a compliant on OnStar Customer Care via email, contactus@onstar.com.

Ways 3: If you have failed to complaint by phone number and email, you can also complaint after through his social media account such as, OnStar facebook page, Twitter, Instagram etc.

OnStar complaints phone number, email and Contact form

OnStar Complaint Phone number: 1.888.466.7827

Complaint Email: contactus@onstar.com

Official Website Support: onstar.com/us/en/home

Make Complaint Using OnStar Contact Form: OnStar Contact Form

OnStar Head Office address: 400 Renaissance Center Detroit, MI 48265

Corporate Office Phone Number: (248)588-6050

Customer service hours of OnStar?

Day Opening Hours Closing Hours
Monday Open 24 Hours Open 24 Hours
Tuesday Open 24 Hours Open 24 Hours
Wednesday Open 24 Hours Open 24 Hours
Thursday Open 24 Hours Open 24 Hours
Friday Open 24 Hours Open 24 Hours
Saturday Open 24 Hours Open 24 Hours
Sunday Open 24 Hours Open 24 Hours

OnStar Customer Service Number & Email

Call on OnStar Customer Care: 1.888.466.7827

Call on OnStar Customer care number at: 1.888.466.7827 to get Customer service tips. This is a OnStar finest customer service phone number that you can use to contact OnStar. You can use this number for various tasks such as:

  • Payments
  • Special Assistance
  • Cancel Account
  • Transfer an account
  • Plans & Pricing

OnStar Email Support

If you are also experiencing some issue or queries with OnStar, especially with their products, order, you can seek assistance from following OnStar customer support email.

OnStar Email support is available contactus@onstar.com.You can use it to solve your general problem.

About OnStar

OnStar is a subsidiary of General Motors that provides subscription-based communications, in-vehicle security, turn-by-turn navigation, hands-free calling, emergency services, and remote diagnostics systems. The OnStar service allows users to contact OnStar call centers during an emergency.


Vehicle Security
Emergency Services
Hands-free calling
Turn-by-turn navigation
Remote diagnostics

Also Read: CareCredit Complaints Number and Email Support

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