Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery.
If the exterior lamps or any interior light is left on and the ignition is turned off, the battery rundown protection system automatically turns the lamp off after about 10 minutes.
See also:
Capacities and Specifications
Capacities and Specifications
Engine Specifications
...
First Engine Oil Change After Every
240 000 km/150,000 Miles
• Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs ...
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 interfer ...