2020 Defender

ALL TERRAIN PROGRESS CONTROL (ATPC) LIMITATIONS

All Terrain Progress Control (ATPC) does not operate if the following systems are enabled:

  • Advanced tow assist.

  • Any parking feature.

ATPC may also not operate if a system fault is present.

ATPC operation is disabled if the vehicle’s speed rises above 80 km/h (50 mph). In this event, the ATPC information lamp extinguishes.

ATPC operation is suspended if:

  • The vehicle’s speed rises above 30 km/h (19 mph). In this event, the ATPC information lamp flashes. ATPC operation resumes if the vehicle's speed drops below 30 km/h (19 mph).

  • The brake or accelerator pedals are used. ATPC operation resumes when the pedals are no longer being used.

ATPC performance is affected:

  • If a fault is present in the system. In some circumstances, ATPC may operate in descent control mode only. In this event, the SET rocker switch on the right side steering wheel controls can moved upward to increase the descent control mode set speed.

  • If the vehicle’s brakes become overheated. ATPC operation is suspended if brake temperatures continue to rise.

The instrument panel displays messages to inform the driver of any performance or system issues.