Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them.
• To mute a call, press 
, and then say “Mute call.” . To cancel mute, press , and then say “Un-mute call.”
See also:
Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with the brake system warning light if there is a problem with the brake system. See Brake System Warning Light on page 5‑27. If this message ap ...
Ignition Positions
The ignition switch has four different positions.
To shift out of P (Park), the ignition must be in ON/RUN or ACC/ ACCESSORY and the regular brake pedal must be applied.
A (STOPPING THE ENGINE/ LO ...