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 FlashersRemote Control Door Lock, Theft Deterrent, and Remote Start Transmitter Package
Installation
Installation Instructions Part Number
22880351
20997377
95198137
22901614
92233547
Kit Usage
This kit adds remote start to vehicles without option BTV. The vehicle
must also have an automatic transmission. Both can be verified by using the
GM Vehicle Inquiry System (GMVIS) ...
Case Porosity Repair
Some external leaks are caused by case porosity in non-pressurized areas.
Thoroughly clean the area to be repaired with a cleaning
solvent. Air dry the area.
Warning: Epoxy adhesive may cause skin irritations and eye damage.
Read and follow all information on the container label a ...
Range Selector Lever Cable Adjustment
Note: Adjust the automatic transmission range selector cable while
the transmission and the gear selector are in the Park position only. Failure
to do so may cause mis-adjustment.
Set the park brake and chock the wheels.
Verify the transmission range select lever is in the par ...