Cold Weather Operation (Below -22°F Or −30°C); After Starting; Starting The Engine - Diesel Engine - RAM Commercial CHASSIS CAB 3500 2021 Owner's Manual

122 STARTING AND OPERATING
CAUTION!
To prevent damage to the starter, do not
crank the engine for more than 10 seconds at
a time. Wait 10 to 15 seconds before trying
again.
If the engine has been flooded, it may start to run,
but not have enough power to continue running
when the ignition button/key is released. If this
occurs, continue cranking with the accelerator
pedal pushed all the way to the floor. Release the
accelerator pedal and the ignition button/key
once the engine is running smoothly.
If the engine shows no sign of starting after a
10 second period of engine cranking with the
accelerator pedal held to the floor, wait 10 to
15 seconds, then repeat the "Normal Starting"
procedure.
C W O
OLD EATHER PERATION
(B –22°F O −30°C)
ELOW R
To ensure reliable starting at these
temperatures, use of an externally powered
electric engine block heater (available from
an authorized dealer) is recommended.
A S
FTER TARTING
The idle speed is controlled automatically, and
it will decrease as the engine warms up.
STARTING THE ENGINE — DIESEL ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belts.
The starter should not be operated for more
than 25-second intervals. Waiting a few
minutes between such intervals will protect the
starter from overheating.
WARNING!
Do not leave children or animals inside

parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
When leaving the vehicle, always remove

the key fob and lock your vehicle.
Never leave children alone in a vehicle, or

with access to an unlocked vehicle. Allowing
children to be in a vehicle unattended is
dangerous for a number of reasons. A child
or others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the gear
selector. Do not leave the key fob in or near
the vehicle (or in a location accessible to chil-
dren), and do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go in
the ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.