RAM 1500 2021 - Page 292

290 SAFETY
Activation/Malfunction Indicator Light also flashes
when TCS is active. If the ESC Activation/
Malfunction Indicator Light begins to flash during
acceleration, ease up on the accelerator and apply
as little throttle as possible. Be sure to adapt your
speed and driving to the prevailing road conditions.
The ESC OFF Indicator Light indicates
that the Electronic Stability Control (ESC)
is i
n a reduced mode.
NOTE:
 The ESC Activation/Malfunction Indicator Light
and the ESC OFF Indicator Light come on
momentarily each time the ignition is placed in
the ON/RUN mode.
 Each time the ignition is placed in the ON/RUN
mode, the ESC system will be on even if it was
turned off previously.
 The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive
following the maneuver that caused the ESC
activation.
Hill Descent Control (HDC) — If Equipped
HDC is intended for low speed off-road driving
while in 4WD Low. HDC maintains vehicle speed
while descending hills during various driving
situations. HDC controls vehicle speed by actively
controlling the brakes.
HDC Has Three States:
1. O
ff (feature is not enabled and will not
act
ivate).
2. Enabled (feature is enabled and ready but
act
ivation conditions are not met, or driver is
actively overriding with brake or throttle
application).
3. Active (feature is enabled and actively
cont
rolling vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch, but the
follo
wing conditions must also be met to enable
HDC:
 Driveline is in 4WD Low.
 Vehicle speed is below 5 mph (8 km/h).
 The parking brake is released.
 The driver door is closed.
Activating HDC
Once HDC is enabled it will activate automatically
i
f d
riven down a grade of sufficient magnitude. The
set speed for HDC is selectable by the driver, and
can be adjusted by using the gear shift +/-. The
following summarizes the HDC set speeds:
HDC Target Set Speeds
 P = No set speed. HDC may be enabled but will
not activate.
 R = 0.6 mph (1 km/h)
 N = 1.2 mph (2 km/h)
 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
targ
et speed selection, but will not affect the gear
chosen by the transmission. When actively
controlling HDC the transmission will shift appro
-
priately for the driver-selected set speed and corre-
sponding driving conditions.
Driver Override
The driver may override HDC activation with
t
hrot
tle or brake application at any time.