OnStar®
OnStar OverviewHill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat
or rolling terrain. Tips for driving in these conditions include:
Keep the vehicle serviced and in good shape.
Check all fluid levels and brakes, tires, cooling system, and transmission.
Shift to a lower gear whe ...
Radio Controls without Touchscreen
The infotainment system is operated by using the pushbuttons, multifunction knobs,
and menus shown on the display.
Turning the System On or Off
/VOL (Power/Volume): Press to turn
the radio on and off.
Automatic Switch-Off
If the infotainment system has been turned on after the ignition is tu ...
Engine Exhaust
Warning
Engine exhaust contains carbon monoxide (CO) which cannot be seen
or smelled. Exposure to CO can cause unconsciousness and even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas with poor ventilation (parking
garages, tunnels, deep snow that may block underbody a ...