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:
BRAKE FLUID LOW
This message is displayed when the
brake fluid level is low. See Brake
Fluid. ...
Air Quality Sensor
This will allow you to select whether
the system will operate at high or
low sensitivity. Only vehicles with
the dual zone climate control will
have this option.
Press SELECT when Air Quality ...
Cold Temperature Operation
If in an area of extreme cold, where the temperature
falls below −20°F (−29°C), use either an SAE 5W-30
synthetic oil or an SAE 0W-30 engine oil. Both provide
easier cold starting ...