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230 SAFETY
Deactivating HDC
HDC will be deactivated but remain available if any of the
followin
g conditions occur:
• Driver overrides HDC set speed with throttle or brake
applic
ation.
• Vehicle speed exceeds 20 mph (
32 km/h) but remains
below 40 mph (64 km/h).
• V
ehicle is on a downhill grade of insufficient magnitude,
is on
level ground, or is on an uphill grade.
• Vehicle is shifted to park.
Disabl
ing HDC
HDC will be deactivated and disabled if any of the following
conditi
ons occur:
• The driver pushes the HDC switch.
• The dr
iveline is shifted out of 4WD Low Range.
• The pa
rking brake is applied.
• Driver
door opens (Driver door opens if doors are attached
or dri
ver 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.
Feedbac
k 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 illuminate
and re
main on solid when HDC is enabled or activated.
This is the normal operating condition for HDC.
• The cluster icon and switch indicator light will flash for
severa
l 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
severa
l seconds then extinguish when HDC disables due
to excess speed.
• The cluster icon and switch indicator light will flash when
HDC de
activates due to overheated brakes. The flashing
will stop and HDC will activate again once the brakes have
cooled sufficiently.
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