Hill Descent; Control (Hdc) - GMC Canyon 2015 Owner's Manual

Adding accessories can affect the
vehicle performance. See
Accessories and Modifications on
page 10-3.

Hill Descent

Control (HDC)

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.
The HDC switch is on the center
stack, below the climate controls.
Press to enable or disable HDC.
Vehicle speed must be below
60 km/h (37 mph).
The HDC light displays on the
instrument cluster when enabled.
HDC can maintain vehicle speeds
between 4 and 30 km/h (3 and
19 mph) on an incline greater than
or equal to a 10% 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. Smaller
HDC speed control adjustments are
accomplished using the cruise up or
down buttons. Each tap of the
+RES will increase the set speed by
0.8 km/h (0.5 mph), while each tap
of the SET will decrease the set
speed by 0.8 km/h (0.5 mph). This
adjusted speed becomes the new
set speed.
HDC will remain enabled between
30 and 60 km/h (19 and 37 mph),
however vehicle speed cannot be
set or maintained in this range.
Driving and Operating
It will automatically disable if the
vehicle speed is above 80 km/h
(50 mph) or above 60 km/h
(37 mph) for at least 30 seconds.
must be pressed again to
re-enable HDC.
When enabled, if the vehicle is at a
speed above 30 km/h (19 mph) and
less than 60 km/h (37 mph), a DIC
message will display instructing the
driver to reduce speed for HDC
operation.
Cruise control will not function while
HDC is enabled and vehicle speed
is below 40 km/h (25 mph).
9-45