If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview.
Roadside Assistance ProgramAutomatic Headlamp System
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 ...
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF
in each shift lever position.
For automatic transmission vehicles, the ignition should turn to LOCK/OFF
only when the shift lever is in P (Park).
For manual transmission vehicles, the ignition should turn t ...
Camshaft Position Actuator Adjuster Installation
Special Tools
EN-6340 Camshaft Adjuster Locking Tool
EN-6628-A Camshaft Locking Tool
EN-45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Note: Note the arrows.
Turn the camshaft by the hexagon until the groove on the end of the camshafts
is ...