Rear Climate Control System
The lower buttons on the rear seat audio are used to adjust the rear seat climate controls. The temperature of the air coming through the rear outlets is determined by the front passenger’s temperature setting.

(Fan) Press this button
to adjust the
fan speed.
(Mode) Press this button to
change the
direction of airflow in the rear seat area to
either vent, bi-level or floor mode.
(On/Off) Press this button
to turn the rear
climate controls on or off.
The rear control will only turn on if the front is on and not in defrost mode.
See also:
Engine Cooling System Messages
A/C OFF DUE TO HIGH ENGINE TEMP
This message displays when the engine coolant becomes hotter than the normal
operating temperature. To avoid added strain on a hot engine, the air conditioning
com ...
Programmable Unlocking Feature
The following is the list of available programming
options:
Mode 1: Driver’s door unlocks when the
transmission is shifted into PARK (P).
Mode 2: All doors unlock when the transmission
is shi ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...
