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When the vehicle is stationary, press and hold the brake pedal to maintain control of the vehicle when selecting or adjusting the set speed.


Selecting very low speeds when pulling away on slippery surfaces can affect the vehicle's ability to make progress. For improved pulling away performance, it is recommended to select a set speed that is sufficient to maintain the vehicle's progress.


Light and gentle application of the accelerator pedal may temporarily override operation of the All Surface Progress Control (ASPC) system. In some events, completely releasing the accelerator pedal may return the ASPC system back to the previously selected set speed.

When the ASPC system is enabled, the desired set speed for the vehicle can be selected and adjusted. Use the controls mounted on the right side of the steering wheel.

Operate as follows:

  1. Speed control switch and RES: Press to resume the set speed. For example, if the vehicle’s speed is lowered, from a current set speed, by gently pressing the brake pedal.


    Make sure that the set speed is known before being resumed. Inappropriate use may potentially lead to an accident, resulting in vehicle damage or personal injury.

  2. SET + position: Move the speed control switch up and release to incrementally increase the set speed. Alternatively, move up and hold for larger increases of the set speed. The maximum speed for the ASPC system is 19 mph (30 km/h).

  3. - position: Move the speed control switch down and release to incrementally decrease the set speed. Alternatively, move down and hold for larger decreases of the set speed.

  4. CANCEL button: Press to exit full function mode and revert the ASPC system to descent control mode. See USING ALL SURFACE PROGRESS CONTROL (ASPC).


    Pressing the CANCEL button retains the set speed for future use, unless the ASPC system or the vehicle's electrical system is switched off.

The incremental increases or decreases of the set speed are influenced by the current set speed:

  • 0.3 mph (0.5 km/h) increments if the set speed is between 0 and 3 mph (0 and 5 km/h).

  • 0.6 mph (1 km/h) increments if the set speed is between 3 and 6 mph (5 and 10 km/h).

  • 1.2 mph (2 km/h) increments if the set speed is between 6 and 19 mph (10 and 30 km/h).

When the vehicle is traveling at speeds between 19 mph (30 km/h) and 50 mph (80 km/h), ASPC operation is suspended. The system enters stand-by mode and the instrument panel flashes the ASPC warning lamp. ASPC operation resumes when the vehicle's speed is less than 19 mph (30 km/h). If the vehicle’s speed exceeds 50 mph (80 km/h), the ASPC system disables and the ASPC warning lamp extinguishes. If required, the ASPC system has to be switched on again.