See also:

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 ...

Starting the Engine
When first starting the vehicle, the engine idle speed will be elevated to allow the catalytic converter, an emissions control device, to quickly reach operating temperature. After approximat ...

Fuel System Messages
FUEL LEVEL LOW This message displays when the vehicle is low on fuel. Refuel as soon as possible TIGHTEN GAS CAP This message displays when the fuel cap is not on tight. Tighten the fuel ca ...