GMC Sierra Owners Manual

Reactivation for Subsequent Owners
OnStar / OnStar Additional Information / Reactivation for Subsequent Owners

Push GMS Sierra: Reactivation for Subsequent Owners. The Advisor will update vehicle records and will explain the OnStar service offers and options available. and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.

The Advisor will update vehicle records and will explain the OnStar service offers and options available.


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