OnStar Description and Operation: Notes
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This OnStar® system consists of the following components:
- Communication Interface Module (CIM)
- OnStar® button assembly
- Microphone
- Cellular antenna
- Navigation antenna
- Bluetooth ® antenna (If Equipped)
- Back Up Battery (BUB) (If Equipped)
This system also interfaces with the factory installed vehicle audio system.