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120 SAFETY
D = 0.6 mph (1 km/h)
1st = 0.6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 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 selection, but will not affect the gear chosen by the
transmission. When actively controlling HDC the trans-
mission 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:
Driver overrides HDC set speed with throttle or brake
application
Vehicle speed exceeds 20 mph (32 km/h) but remains
below 40 mph (64 km/h)
Vehicle is on a downhill grade of insufficient magni-
tude, is on level ground, or is on an uphill grade
Vehicle is shifted to PARK (P)
Disabling HDC
HDC will be deactivated and disabled if any of the
following conditions occur:
The driver pushes the HDC switch
The driveline is shifted out of 4L Range
The park brake is applied
Driver door opens (Driver door opens if doors are
attached or driver seatbelt is unbuckled if doors are
detached.)
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 indicator light, which offers feedback to the
driver about the state HDC is in.
The cluster icon and switch indicator light will illumi-
nate and remain on solid when HDC is enabled or acti-
vated. This is the normal operating condition for HDC.
The cluster icon and switch indicator light will flash for
several seconds then extinguish when the driver
pushes the HDC switch but enable conditions are not
met.
The cluster icon and switch indicator light will flash for
several seconds then extinguish when HDC disables
due to excess speed.
The cluster icon and switch indicator light will flash
when HDC deactivates due to overheated brakes. The
flashing will stop and HDC will activate again once the
brakes have cooled sufficiently.
Hill Start Assist (HSA)
The Hill Start Assist (HSA) system is designed to mitigate
roll back from a complete stop while on an incline. If the
driver releases the brake while stopped on an incline, HSA
will continue to hold the brake pressure for a short period.
If the driver does not apply the throttle before this time
expires, the system will release brake pressure and the
vehicle will roll down the hill as normal.
The following conditions must be met in order for HSA to
activate:
The feature must be enabled.
The vehicle must be stopped.
Park brake must be off.
Driver door must be closed. (If the doors are attached,
then the door must be closed. If the doors are
detached then the driver's seatbelt must be buckled).
WARNING!
HDC is only intended to assist the driver in controlling
vehicle speed when descending hills. The driver must
remain attentive to the driving conditions and is
responsible for maintaining a safe vehicle speed.
20_JL_OM_EN_USC_t.book Page 120
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