Cancelling OnStar requires a phone call or visit to your dealership. The process varies slightly depending on your plan type and whether you're still within a trial period. This guide covers both methods to help you end your subscription.
OnStar requires phone or in-person cancellation - there's no online cancel option. Even if you signed up through your vehicle's touchscreen or the mobile app, you'll need to call their customer service line to end your subscription.
Here's how to cancel OnStar by phone. This is the primary method since online cancellation isn't available.
Call 1-888-4-ONSTAR (1-888-466-7827) to speak with a representative. Have your account information ready, including your vehicle identification number (VIN).
When prompted, say "Cancel service" or press the option for account changes. You may need to verify your identity with account details.
The representative will likely transfer you to a retention specialist who may offer discounts or plan changes. Be clear that you want to cancel completely.
Ask when the cancellation takes effect and whether you'll receive a confirmation email. Get the representative's name and a confirmation number for your records.
Check your next billing statement to ensure charges have stopped. Some features may continue working until your current billing period ends.
A few things that might affect your OnStar cancellation or save you money.
These details can affect your cancellation timing or whether it goes through properly.
Different OnStar plans have different cancellation policies. Premium plans may have different notice requirements than basic safety plans.
OnStar typically bills monthly on the same date. Cancelling mid-cycle usually means you keep access until the period ends.
If you rely on OnStar for navigation or emergency assistance during travel, plan alternative solutions before cancelling.
If cost is the issue, you might be able to downgrade instead of cancelling completely.
If you can't reach OnStar by phone, you may be able to cancel through your vehicle dealership.
This is the primary method - OnStar requires phone cancellation for all plans.
1-888-4-ONSTAR (1-888-466-7827)
Visit your GM dealership if you can't reach OnStar by phone or prefer in-person service.
Contact your local Chevrolet, GMC, Cadillac, or Buick dealership
Common questions about cancelling OnStar and what to expect.
Step-by-step guides for other automotive services.
See all cancellation guides