OnStar®
Keys and LocksHeating and Air Conditioning System Description and Operation
Engine Coolant
Engine coolant is the key element of the heating system. The thermostat
controls engine operating coolant temperature. The thermostat
also creates a restriction for the cooling system that promotes a positive
coolant flow and helps prevent cavitation. Coolant enters the
heater ...
Power Door Locks Description and Operation
Door Lock System Components
The power door lock system consists of the following components:
Door lock switch - located in the center of the instrument panel
Body control module (BCM)
Driver door latch
Passenger door latch
Left rear door latch
Right rear door latch
Door Lock System ...
Headlamp Aiming Procedure
Open the hood.
Measure from the floor to the center of the headlamp bulb. Some
headlamps have an aim dot marked on the headlamp lens.
At the screen, measure from the floor and place the horizontal tape at
the measured distance.
Measure from the reference line on the floor to the le ...