Hill Descent Control (Hdc) - Chevrolet Silverado 2020 Owner's Manual

Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.
To turn off only TCS, press and
release . The traction off light
displays in the instrument cluster.
The appropriate message will
display in the DIC. To turn TCS on
again, press and release
traction off light displayed in the
instrument cluster will turn off.
If TCS is limiting wheel spin when
is pressed, the system will not turn
off until the wheels stop spinning.
To turn off both TCS and StabiliTrak/
ESC, press and hold until the
traction off light and the
StabiliTrak/ESC OFF light
on and stay on in the instrument
cluster, then release. The
appropriate message will display in
the DIC.
To turn TCS and StabiliTrak/ESC on
again, press and release
traction off light
StabiliTrak/ESC OFF light
instrument cluster turn off.
StabiliTrak/ESC will automatically
turn on if the vehicle exceeds
56 km/h (35 mph). Traction control
will remain off.
The vehicle has a Trailer Sway
Control (TSC) feature and a Hill
Start Assist (HSA) feature. See
Trailer Sway Control (TSC) 0 304 or
. The
Hill Start Assist (HSA) 0 231.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications
0 325.
Hill Descent
Control (HDC)
If equipped, Hill Descent Control
come
(HDC) sets and maintains vehicle
speed while driving down steep
grades in a forward or reverse gear.
The HDC switch is on the center
stack, below the climate controls.
Driving and Operating
Press
. The
Vehicle speed must be below
50 km/h (31 mph).
and the
in the
When enabled, the HDC light
displays on the instrument cluster.
A blinking HDC light indicates the
system is actively applying the
brakes to maintain vehicle speed.
HDC can maintain vehicle speeds
between 1 and 22 km/h (1 and
14 mph) on grades greater than or
equal to 10%.
If HDC is to be used for more than
three minutes or on grades steeper
than 25%, the transfer case should
be put into Four-Wheel Drive Low
(4 ) to reduce the possibility of
brake overheating.
Noise from the Electronic Brake
Control Module (EBCM) is normal
when HDC is active.
233
to enable or disable HDC.