See also:

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 Advi ...

Manual Operation of Power Liftgate
To change the liftgate to manual operation, turn the mode selector switch to OFF. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and clo ...

Vehicle Overview
Cadillac takes another step into rear-wheel-drive territory with its new STS sedan, which replaces the front-wheel-drive Seville. Built on a Sigma-based architecture, like the automaker's smaller ...