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NOTE:
•
The ESC Activation/Malfunction Indicator Light and the
ESC OFF Indicator Light come on momentarily each
time the ignition is placed in the ON/RUN mode.
•
Each time the ignition is placed in the ON/RUN
mode, the ESC system will be on even if it was
turned off previously.
•
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the sounds
will stop when ESC becomes inactive following the
maneuver that caused the ESC activation.
Hill Descent Control (HDC) — If Equipped
HDC is intended for low speed off-road driv-
ing while in 4WD Low. HDC maintains vehicle
speed while descending hills during various
driving situations. HDC controls vehicle
speed by actively controlling the brakes.
HDC Has Three States:
1. Off (feature is not enabled and will not activate).
2. Enabled (feature is enabled and ready but activation
conditions are not met, or driver is actively overrid-
ing with brake or throttle application).
3. Active (feature is enabled and actively controlling
vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch, but the fol-
lowing conditions must also be met to enable HDC:
•
The driveline is in 4WD Low.
•
The vehicle speed is below 5 mph (8 km/h).
•
The parking brake is released.
•
The driver door is closed.
Activating HDC
Once HDC is enabled it will activate automatically if
driven down a grade of sufficient magnitude. The set
speed for HDC is selectable by the driver, and can be
adjusted by using the gear shift +/-. The following sum-
marizes the HDC set speeds:
HDC Target Set Speeds
•
P = No set speed. HDC may be enabled but will not
activate.
•
R=0.6mph(1km/h)
•
N=1.2mph(2km/h)
•
D=0.6mph(1km/h)
•
1st=0.6mph(1km/h)
•
2nd=1.2mph(2km/h)
•
3rd=1.8mph(3km/h)
•
4th=2.5mph(4km/h)
•
5th=3.1mph(5km/h)
•
6th=3.7mph(6km/h)
•
7th=4.3mph(7km/h)
•
8th=5.0mph(8km/h)
•
9th = 5.6 mph (9 km/h) – If Equipped
NOTE:
During HDC the +/- shifter input is used for HDC target
speed selection, but will not affect the gear chosen by
the transmission. When actively controlling HDC the
transmission will shift appropriately for the driver-
selected set speed and corresponding driving
conditions.
Driver Override
The driver may override HDC activation with throttle or
brake application at any time.
Deactivating HDC
HDC will be deactivated but remain available if any of
the following conditions occur:
•
The driver overrides HDC set speed with throttle or
brake application.
•
The vehicle speed exceeds 20 mph (32 km/h) but
remains below 40 mph (64 km/h).
•
The vehicle is on a downhill grade of insufficient
magnitude, is on level ground, or is on an uphill
grade.
•
The vehicle is shifted to PARK.
Disabling HDC
HDC will be deactivated and disabled if any of the fol-
lowing conditions occur:
•
The driver pushes the HDC switch.
•
The driveline is shifted out of 4WD Low.
•
The parking brake is applied.
•
The driver door opens.
•
The vehicle is driven greater than 20 mph
(32 km/h) for greater than 70 seconds.
•
The vehicle is driven greater than 40 mph
(64 km/h) (HDC exits immediately).
•
HDC detects excessive brake temperature.
Feedback To The Driver
The instrument cluster has an HDC icon and the HDC
switch has an LED icon, which offers feedback to the
driver about the state HDC is in.
•
The cluster icon and switch light will illuminate and
remain on solid when HDC is enabled or activated.
This is the normal operating condition for HDC.
•
The cluster icon and switch light will flash for several
seconds, then extinguish when the driver pushes
the HDC switch but enable conditions are not met.
SAFETY 231
6
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