Certain vehicles equipped with OnStar® now have an additional feature that allows for remote limiting of the vehicle's speed. This OnStar® feature is called Stolen Vehicle Slow-Down and is now part of the OnStar® Stolen Vehicle Assistance service. This feature, when used in conjunction with local law enforcement and strict guidelines at the OnStar® Call Center, will slow the vehicle by interacting with the engine control system.
When the engine control system receives a valid request from the OnStar® telematics communications interface module, it will enter into a reduced engine power/vehicle speed limiting mode, which will decelerate the vehicle. Once the request is active the engine control module begins reducing engine torque to match requested vehicle speed and a REDUCED ENGINE POWER indication is displayed. No DTCs will be set during this process.
Automatic 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 ...
Engine Front Cover with Oil Pump Replacement
Removal Procedure
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Set the engine to TDC. Refer to Camshaft Timing Chain Inspection.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove ...
Fuel Injector Replacement
Fuel Injector Replacement
Callout
Component Name
Preliminary Procedure
Disconnect battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the fuel injection fuel rail assembly. Refer t ...