OnStar Description and Operation (UE1): Notes

WARNING: This page is about a different car, the 2021 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

This OnStar® system consists of the following components:

Telematics Communication Module
OnStar® three button assembly
Microphones
Cellular antenna
Navigation antenna
Back up battery
WiFi Support
TTY (Teletypewriter)

This system also interfaces with the factory installed vehicle audio system.