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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    Starting the Engine
    Place the transmission in the proper gear. Move your shift lever to PARK (P) or NEUTRAL (N). Your engine will not start in any other position -- this is a safety feature. To restart when you a ...

    Safety Chains
    You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes sep ...

    Driving Uphill
    Once you decide you can safely drive up the hill, you need to take some special steps. • Use a low gear and get a firm grip on the steering wheel. • Get a smooth start up the hill and try to ...