Horn
Press near or on the horn symbols on the steering wheel pad to sound the horn.
See also:
Tire Messages
TIRE PRESSURE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the vehicle's tires is low.
The low tire pressur ...
Safety Locks
The rear door safety locks prevent passengers from opening the rear doors from
inside the vehicle.
Press to activate the safety locks.
The indicator light will illuminate.
This switch also di ...
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. Press
and request
a vehicle ...