OnStar Description and Operation: Notes
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The OnStar® system on this vehicle will be one of 2 systems, Generation 4 (Gen. 4) or Generation 5 (Gen. 5). Both systems are diagnosed identically, differing only in the audio prompt responses and output voltage to the microphone. To determine which system this vehicle is equipped with, install a scan tool and access the Module I.D. Information screen. The Gen. 4 and Gen. 5 versions of OnStar® both consist of the following components:
- Vehicle communication interface module (VCIM)
- OnStar® button assembly
- Microphone
- Cellular antenna
- Navigation antenna
This system also interfaces with the factory installed vehicle audio system.