RAM 1500 2020 Owner's Manual page 148

146 SAFETY
The "ESC Activation/Malfunction Indicator
Light" (located in the instrument cluster) starts
to flash as soon as the tires lose traction and
the ESC system becomes active. The "ESC
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.
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.
The "ESC OFF Indicator Light"
indicates the customer has elected to
have the Electronic Stability Control
(ESC) in a reduced mode.
Hill Descent Control (HDC) — If Equipped
Hill Descent Control (HDC) is intended for low
speed off-road driving while in 4L Range. 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. Off (feature is not enabled and will not
activate).
2. Enabled (feature is enabled and ready but
activation conditions are not met, or driver
is actively overriding with brake or throttle
application).
3. Active (feature is enabled and actively
controlling vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch, but
the following conditions must also be met to
enable HDC:
Driveline is in 4L Range

Vehicle speed is below 5 mph (8 km/h)

Park brake is released

Driver door is closed

Activating HDC
Once HDC is enabled it will activate
automatically if driven 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)
