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 on page 9‑112. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Mixed-Band Presets
Each page can store six preset stations. The presets within a page can be from
different radio bands. To scroll through the pages, press the FAV button located
on the faceplate or the FAV screen b ...
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chime may sound when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overh ...
Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...