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.
Key with Integrated Transmitter Programming
Theft Deterrent Module ReplacementWindshield Washer Pump Replacement
Windshield Washer Pump Replacement
Callout
Component Name
Preliminary Procedure
Remove the front left front wheelhouse liner. Refer to Front Wheelhouse
Liner Replacement.
1
Windshield Washer Pum ...
Aluminum Wheel Porosity Repair
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
Inflate the tire to the manufacturer specified pressure as stated on the
tire.
Submerge the tire/wheel into a water bath in order t ...
Data Link Communications Description and Operation
Note: This is an overview of different serial data buses used by GM
devices to communicate with each others. Use Data Communication Schematics to
find out which serial data buses are configured for a specific vehicle.
Circuit Description
There are many components in a vehicle t ...