Warranty

OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information.

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    What to Use
    Use a mixture of one-half clean, drinkable water and one-half DEX-COOL® coolant. If you use this coolant mixture, you do not need to add anything else. CAUTION: Adding only plain water to your ...

    Replacement Bulbs
    For replacement bulbs not listed here, contact your dealer. ...

    Windshield Washer
    WARNING: In freezing weather, do not use your washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision. (Washer Fluid): Press and ...