OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview.

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    Consistency of Readings
    Always check the fluid level at least twice using the procedures described. Consistency (repeatable readings) is important to maintaining proper fluid level. If fluid is added, it may take 15 minu ...

    Vehicle Overview
    Cadillac stepped into rear-wheel-drive territory with its STS sedan, which replaced the front-wheel-drive Seville for 2005. Built on a Sigma-based architecture, like the company's smaller CTS seda ...

    Power Door Locks
    Press or on the Remote Keyless Entry (RKE) transmitter. See Remote Keyless Entry (RKE) System Operation  . Premium Trim Shown, Up-Level Similar (Lock): Press to lock the doors. (Unloc ...