Satellite Radio Antenna

The XM Satellite Radio antenna is located on the roof of the vehicle.

Keep the antenna clear of obstructions for clear radio reception.

If the vehicle has a sunroof, the performance of the XM system (if equipped) may be affected if the sunroof is open.

    See also:

    New for 2010
    GM has dropped the long-running 6.0-liter V-8 engine from the Sierra lineup, leaving the powerful 6.2-liter V-8 for heavy towing needs. The rest of the Sierra's eight-cylinder lineup benefits from ...

    Shocks and Struts
    Shocks and struts help aid in control for a smoother ride. • Signs of wear may include steering wheel vibration, bounce/ sway while braking, longer stopping distance, or uneven tire wear. • As p ...

    Power Windows
    WARNING Leaving children in a vehicle with the keys is dangerous for many reasons. Children or others could be badly injured or even killed. They could operate the power windows or other controls or ...