Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push 
and request a vehicle diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
Lumbar Adjustment
Lumbar Adjustment
To adjust the lumbar support,
if available:
• Press and hold the front or rear
of the control to increase or
decrease lumbar support.
• Press and hold the top or botto ...
Customer Assistance for TextTelephone (TTY) Users
To assist customers who are deaf, hard of
hearing, or speech-impaired and who use Text
Telephones (TTYs), Buick has TTY equipment
available at its Customer Assistance Center. Any
TTY user can comm ...
Arming the System
To arm the system, press Q on the RKE transmitter.
The alarm automatically arms after about 30 seconds. The security light, located
on the instrument panel, flashes.
PressVon the RKE transmitter t ...