See also:

Checking Coolant
The vehicle must be on a level surface when checking the coolant level. The engine coolant reservoir is located in the engine compartment on the driver side of the vehicle. See Engine Compar ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road. - Signs that the headlamps need attention include dimming, failure to light, cracking, o ...