Ram 2021 3500 dually truck 2021 RAM 3500

User Manual - Page 150

For 2021 RAM 3500.

PDF File Manual, 456 pages, Download pdf file

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148 STARTING AND OPERATING
and set that gear as the top available gear. Once in
ERS mode, tapping the ERS (-) or (+) switch will
change the top available gear.
Electronic Range Select
To exit ERS mode, simply push and hold the ERS
(+
) switch until the gear limit display disappears
from the instrument cluster.
NOTE:
To select the proper gear position for maximum
de
celeration (engine braking), simply push and
hold the ERS (-) switch. The transmission will shift
to the range from which the vehicle can best be
slowed down.
Overdrive Operation
The automatic transmission includes an
electronically controlled Overdrive (FIFTH and
SIXTH gears). The transmission will automatically
shift into Overdrive if the following conditions are
present:
The gear selector is in the DRIVE position.
The transmission fluid has reached an
adequate temperature.
The engine coolant has reached an adequate
temperature.
The vehicle speed is sufficiently high.
The driver is not heavily pressing the acceler-
ator.
When To Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying
a heavy load, etc., and frequent transmission
shifting occurs, push the TOW/HAUL switch to
activate TOW/HAUL mode. This will improve
performance and reduce the potential for
transmission overheating or failure due to
excessive shifting. When operating in TOW/HAUL
mode, transmission upshifts are delayed, and the
transmission will automatically downshift (for
engine braking) when the throttle is closed and/or
during steady braking maneuvers.
TOW/HAUL Switch
1 — GEAR “+” Switch
2 — GEAR “–” Switch
WARNING!
Do not downshift for additional engine braking
on a slippery surface. The drive wheels could
lose their grip and the vehicle could skid,
causing a collision or personal injury.
Transmission
Gear Limit
Display
1 2 3 4 5 6 D
Actual Gear(s)
Al
lowed
1 1-2 1-3 1-4 1-5 1-6 1-6
CAUTION!
When using ERS for engine braking while
descending steep grades, be careful not to
overspeed the engine. Apply the brakes as
needed to prevent engine overspeed.
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