2020 Ram 3500 Chassis Cab light

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Page 193 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
STARTING AND OPERATING191
Normal Starting Procedure — Engine 
Manifold Air Temperature Above 66°F 
(19°C)
Observe the instrument panel cluster lights 
when starting the engine.

1. Always apply t

Page 194 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
192STARTING AND OPERATING  
3. After the “Wait to Start” telltale goes off, 
place the ignition switch in the START posi -
tion. Do not press the accelerator during 
starting.
4. After engine sta

Page 196 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
194STARTING AND OPERATING  
NORMAL OPERATION — DIESEL ENGINE
Observe the following when the engine is oper -
ating.
All message center lights are off.
Malfunction Indicator Light (MIL) is off

Page 199 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
STARTING AND OPERATING197
NOTE:
If ambient temperatures are low and the 
coolant temperature is below 180°F (82°C), 
the engine idle speed will slowly increase to 
1,000 RPM after two minutes of id

Page 200 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
198STARTING AND OPERATING  
Idle-Up Feature
The driver-controlled high idle speed feature will 
help increase cylinder temperatures and 
provide additional cab heat, however, excessive 
idling may st

Page 204 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
202STARTING AND OPERATING  
ENGINE BREAK-IN RECOMMENDATIONS — 
GAS ENGINE 
A long break-in period is not required for the 
engine and drivetrain (transmission and axle) in 
your vehicle.
Drive mode

Page 206 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
204STARTING AND OPERATING  
(Continued)
Automatic “Smart” Exhaust Brake
Automatic “Smart” Exhaust Brake technology 
delivers smoother, less aggressive exhaust 
braking characteristics during

Page 207 of 516

Ram 3500 Chassis Cab 2020  Owners Manual 
STARTING AND OPERATING205
(Continued)
(Continued)
AUTOMATIC TRANSMISSION
Do not leave the key fob in or near the 
vehicle, or in a location accessible to chil-
dren, and do not leave a vehicle equ