OnStar Personal Identification Number (PIN)

GMC Sierra / GMC Sierra Owners Manuals / OnStar / OnStar Additional Information / OnStar Personal Identification Number (PIN)

A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To change the OnStar PIN, call OnStar and provide the Advisor with the current number.

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