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Vehicle Overview
Though gas mileage ratings for GM's full-size SUVs are impressive among their competitive set, they aren't likely to bring smiles to anyone at the pump; their combined ratings still linger in the ...

Security Light
The security light should come on briefly as the engine is started. If the system is working normally, the indicator light turns off. If it does not come on, have the vehicle serviced by your dealer ...

Reactivation for Subsequent Owners
Push 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 ava ...