Add-on Electrical Equipment

The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.

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    Freeway Driving
    Mile for mile, freeways — also called thruways, parkways, expressways, turnpikes, or superhighways — are the safest of all roads. But they have their own special rules. The most importan ...

    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 ...

    Making Turns
    Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. The vehicle could be damaged. Avoid making very sharp turns while trailering. When ...