Hill Descent Control (Hdc) - Chevrolet trailblazer Handbook

10460390) - 2017 - crc - 6/15/16
228 Driving and Operating
attention to the road conditions. The
ESC system is only a
supplementary device for the
vehicle. When the vehicle exceeds
its physical limits, it can no longer
be controlled. Therefore do not rely
on this system. Keep driving safely.
Hill Descent
Control (HDC)
The Hill Descent Control system
(HDC) allows the vehicle to travel
on a steep decline at a low speed
without pressing the brake pedal.
If equipped, HDC can be used when
driving downhill. It sets and
maintains vehicle speed while
descending a very steep incline in a
forward or reverse gear. Some noise
or vibration from the brake system
may be noticed, when the system is
in operation.
Caution
Use only when descending steep
grades while driving off-road. Do
not use when driving on normal
Caution (Continued)
road surfaces. Unnecessary
usage of the HDC function, such
as while driving on normal roads,
may damage the brake system
and the ESC function.
Activation
At speeds below 30 km/h, press
button
indicator
instrument panel. The green control
indicator
(Continued)
instrument panel when the HDC is
5
. The green control
5
will turn on in the
5
will flashes in the
in operation. HDC will neither
activate nor operate at speeds
above 30 km/h, even if the button is
pressed.
HDC can maintain vehicle speeds
between minimum speed of
approximately 7 km/h and 30 km/h
(manual transmission) or
approximately 4 km/h and 30 km/h
(automatic transmission) on an
incline greater than or equal to a 5%
grade. A blinking HDC light
indicates that the system is actively
applying the brakes to maintain
vehicle speed. When HDC is set,
that is the initial set speed. It can be
increased or decreased by applying
the accelerator or brake pedal. This
adjusted speed becomes the new
set speed. When enabled, if the
vehicle is at a speed above 30 km/h
and below than 50 km/h, the
message "Reduce Speed for Hill
Descent Control" will display
on DIC.
When the HDC is active and the
vehicle speed exceeds 30 km/h, the
green control indicator will turn off,
while the HDC function remains on
stand by.