Add-On Electrical Equipment

Notice: Do not add anything electrical to the vehicle unless you check with your dealer first.

Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle's warranty. Some add-on electrical equipment can keep other components from working as they should.

Add-on equipment can drain the vehicle's 12-volt battery, even if the vehicle is not operating.

The vehicle has an airbag system.

Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle on page 3‑40 and Adding Equipment to the Airbag-Equipped Vehicle on page 3‑40.

    See also:

    Cruise Control
    ON/OFF CRUISE : Press to turn the cruise control system on and off. CANCEL : Press to disengage cruise control without erasing the set speed from memory. RES/+: Move the thumbwheel up to make ...

    Transmission Temperature
    Press the trip/fuel button until TRANS TEMP displays. This display shows the temperature of the automatic transmission fluid in either degrees Celsius (°C) or degrees Fahrenheit (°F). ...

    Connections
    OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...