OnStar Description and Operation (UI3): Notes
WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
The Emergency Road Assistance Global Navigation Satellite System (ERA GLONASS) consists of the following components:
- Telematics communication interface control module
- Telematics two button assembly
- Microphone
- Cellular antenna
- GPS antenna
- Back up battery
- Backup speaker
This system also interfaces with the factory installed vehicle audio system.