Cellular and GPS Antennas

Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception.

Cellular reception is required for OnStar to send remote signals to the vehicle.

    See also:

    Doing Your Own Service Work
    If the vehicle is a hybrid, see the hybrid supplement for more information. WARNING It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, ...

    Instrument Panel Fuse Block
    The instrument panel fuse block is located in the center console between the driver and passenger seats. To access the fuses, open the fuse panel door from the passenger side by pulling it out. ...

    Checking Coolant in the Intercooler System (CTS-V)
    The vehicle must be on a level surface when checking the coolant level. The super charged engine intercooler coolant fill neck is located in the engine compartment on the passenger side of ...