HOW TO CHANGE OR CANCEL YOUR ONSTAR® PLANS
Difficulty Level: Novice | Time Required: 5 Minutes | Tools Required: None | Related Parts, Products, Services or Technology: OnStar-equipped vehicle with an OnStar subscription
Here’s how to activate, renew, change and cancel your OnStar plans online. You can also complete these actions by speaking with an OnStar Advisor: push the blue OnStar button or call 1.888.466.7827.
ACTIVATE YOUR SERVICES OR
PURCHASE A PLAN
Your vehicle needs to be in an Active state to purchase a plan online.
To check if OnStar is active on your vehicle:
- Visit My Account – Plans & Services.
- Select your vehicle.
- If you see a View My Plans button under OnStar, you can select it to view your current services or explore plans available to purchase online.
- If you see “OnStar is not active for this vehicle,” you will need to push the blue OnStar button in your vehicle or call 1.888.466.7827 to speak with an Advisor. You may be eligible for a special trial. To learn more about current offers, click here.
RENEW YOUR PLAN
1. If your OnStar trial or plan has expired, or is expiring soon, you can renew by visiting My Plans.
2. If you are in your trial period, your paid service plan will begin once your trial ends.
CHANGE YOUR PLAN
To add additional services to your existing plan, view available add-ons here.
To change your subscription to a different plan, push the blue OnStar button or call 1.888.466.7827 to speak with an Advisor.
CANCEL YOUR PLAN
To cancel your plan, push the blue OnStar button or call 1.888.466.7827 to speak with an Advisor.
To cancel your plan online (California and Vermont residents only):
- Visit My Plans.
- Follow the cancellation prompts on screen.
For your security, please don't include personal info such as phone number, address or credit card details.
RELATED LINKS AND RESOURCES
Q&As
Family Sharing allows you to share your GM vehicle(s) and available OnStar services with your Family Members, without the need to share your sign-in or security PIN on your account.
To share your account:
1. Go to cadillac.com.
2. Select the account icon.
3. Sign in to My Account.
4. Select the Family Sharing tile from the homescreen.
5. Select the Invite Family Member button.
6. You’ll be taken to an information page that explains what a Family Member can do once the account is shared. Select Next.
7. Enter your Family Member’s contact information. Select Next.
8. Select the vehicle(s) you want to assign to your Family Member. Select Next.
9. Confirm the information. If it looks good, select Send email invite.
10. The system will send the invite. You will receive an email when they
accept.
By inviting a Family Member, you’re sharing your vehicle with them, so make sure it’s someone you know and trust. You’ll receive an email when they accept your invitation.
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Information on this page is specific to the Cadillac models below. If your vehicle is not on the list or these instructions don't apply, then please see your Owner's Manual.
