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SAFETY 229
Enabling HDC
HDC is enabled by pushing the HDC switch, but the
followin
g conditions must also be met to enable HDC:
• Driveline is in 4WD Low Range
• Vehicl
e speed is below 5 mph (
8 km/h).
• Parking brake is released.
• Driver
door is closed. (If doors are attached, then door
must b
e closed. if doors are detached, then driver seatbelt
must be buckled.)
Activating HDC
Once HDC is enabled it will activate automatically if driven
down a gr
ade of sufficient magnitude. The set speed for
HDC is selectable by the driver, and can be adjusted by using
the gear shift +/-. The following summarizes the HDC set
speeds:
HDC Target Set Speeds
• P = No set speed. HDC may be enabled but will not acti-
vate
• R
=
0.6 mph (
1 km/h)
• N = 1.2 mph (
2 km/h)
• D = 0.6 mph (1 km/h)
• 1s
t = 0.6 mph (
1 km/h)
• 2nd = 1.2 mph (
2 km/h)
• 3rd = 1.8 mph (3 km/h)
• 4t
h = 2.5 mph (
4 km/h)
• 5th = 3.1 mph (
5 km/h)
• 6th = 3.7 mph (
6 km/h)
• 7th = 4.3 mph (
7 km/h)
• 8th = 5.0 mph (
8 km/h)
• 9th = 5.6 mph (
9 km/h) – If Equipped
NOTE:
During HDC the +/- shifter input is used for HDC target
speed s
election, but will not affect the gear chosen by the
transmission. When actively controlling HDC the transmis
-
sion will shift appropriately for the driver-selected set speed
and cor
responding driving conditions.
Driver Override
The driver may override HDC activation with throttle or
brake ap
plication at anytime.
4
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