Adjustable Speed Limiter (ASL) Operation
The Adjustable Speed Limiter (ASL) feature is mutually exclusive of the cruise control system. The feature allows the driver to set a desired speed that the vehicle cannot exceed during normal driving conditions. Unlike cruise control, the vehicle slows down when the accelerator pedal is released.
ASL inputs are received by the SCCM and sent to the GWM on the HS-CAN. The GWM sends the switch information to the PCM on the HS-CAN indicating the system is activated.
The front wheel speed sensors monitor the vehicle speed. When the vehicle reaches the selected set speed, the PCM limits the amount of fuel delivered to the engine, preventing the vehicle from traveling beyond the set speed.
The ASL speed limit can be overridden, without pressing the steering wheel switch or by pressing the accelerator pedal to 90% of travel. The speed limit automatically resumes when the accelerator pedal is released and the vehicle slows down to below the set speed limit. If the system is not overridden and the set speed limit is exceeded, an audible chime sounds and a message displays in the instrument cluster.
The ASL operates exclusive of the cruise control and is not connected to the brakes. Applying the brake pedal does not override or deactivate the ASL.