Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is sta ...
COOLANT LEVEL LOW ADD
COOLANT
This message will display if the
coolant is low. See Engine Coolant. ...
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 ...