When it is dark enough outside and the exterior lamp control is in the automatic position, the headlamps come on automatically. See Exterior Lamp Controls.

The vehicle has a light sensor on top of the instrument panel. Make sure it is not covered, or the headlamps will be on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
Lights On with Wipers
If the windshield wipers are activated in daylight with the engine on, and the
exterior lamp control is in AUTO, the headlamps, parking lamps, and other exterior
lamps come on. The transition time for the lamps coming on varies based on wiper
speed. When the wipers are not operating, these lamps turn off. Move the exterior
lamp control to
or
to disable this feature.
Daytime Running Lamps (DRL)
Hazard Warning FlashersAdhesives, Fluids, Lubricants, and Sealers
Adhesives, Fluids, Lubricants, and Sealers
Application
Type of Material
GM Part Number
United States
Canada
Wheels
Valve Stem
TPM
Mounting Lubricant
9985709
...
Front Wheel Drive Shaft Inner Joint and Boot Replacement
Special Tools
DT-35910 Drive Axle Boot Clamp Pliers
For equivalent regional tools, refer to Special Tools.
Disassemble Procedure
Note: There are types of inner joints available. If the inner
joint is connected with the CV style joint, the inner joint is not serviced
separa ...
Charging System Description and Operation
Electrical Power Management Overview
The electrical power management system is designed to monitor and control
the charging system and send diagnostic messages to alert the driver of possible
problems with the battery and generator. This electrical power management system
primarily ...