FORD 2013 Explorer v.1 - Manual (Page 240)

If the system becomes inoperable, selecting some modes may not be
possible and a message is displayed. If it becomes inoperable due to a
system malfunction, all of the mode indicators on the control turn off and
one of the following messages appears in the information display:
TERRAIN MANAGEMENT SYSTEM FAULT: Cycling the key may
clear the fault. If key cycling does not work, have the system serviced by
an authorized dealer.
MODE CHANGE NOT ACCEPTED, RETRY: A mode change cannot
be made at the time of driver request. Try the mode change again.
HILL DESCENT CONTROL™ (if equipped)
WARNING: Hill descent control cannot control descent in all
surface conditions and circumstances, such as ice or extremely
steep grades. Hill descent control is a driver assist system and cannot
substitute for good judgment by the driver. Failure to do so may result
in loss of vehicle control, crash or serious injury.
WARNING: Hill descent control does not provide hill hold at
zero mph (0 km/h). When stopped, the parking brake must be
applied and/or the vehicle must be placed in P (Park) or it may roll
away.
Hill descent control allows the driver to set and maintain vehicle speed
while descending steep grades in various surface conditions.
Hill descent control can maintain vehicle speeds on downhill grades
between 3 mph (5 km/h) and 20 mph (32 km/h). Above 20 mph
(32 km/h), the system remains armed, but descent speed cannot be set
or maintained.
Hill descent control requires a cooling down interval after a period of
sustained use. The amount of time that the feature can remain active
before cooling varies with conditions. The system will provide a warning
in the message center and a chime will sound when the system is about
to disengage for cooling. At this time, manually apply the brakes as
needed to maintain descent speed.
240 Terrain Response
2013 Explorer (exp)
Owners Guide gf, 1st Printing
USA (fus)