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 ...

Vehicle Overview
Cadillac created a new niche for itself in 2002 by borrowing a concept from Chevrolet and giving it the full luxury treatment. Chevrolet had already launched its Avalanche, and Cadillac followed w ...

Engine Coolant Heater
Vehicles with the engine coolant heater can use this option in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug i ...