2020 Ram 1500 air suspension

STARTING AND OPERATING 421
Tow/Haul Mode
To reduce potential for automatic transmission overheating,
activate TOW/HAUL mode when driving in hilly areas, or
select a lower gear range (using the Electronic Range Select
(ERS) shift control) on more severe grades.
Speed Control — If Equipped
• Do not use on hilly terrain or with heavy loads.
• When using the speed control, if you experience speeddrops greater than 10 mph (16 km/h), disengage until you
can get back to cruising speed.
• Use speed control in flat terrain and with light loads to maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over -
heating, take the following actions:
City Driving
In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase engine idle speed. Highway Driving
• Reduce speed
• Temporarily turn off air conditioning
Air Suspension System

To aid in attaching/detaching the trailer from the vehicle, the air
suspension system can be used. Refer to “Air Suspension
System” in “Starting And Operating” for further information.

NOTE:
The vehicle must remain in the engine running position
while attaching a trailer for proper leveling of the air suspen
-
sion system.
SNOWPLOW
NOTE:
Do not use this model vehicle for snowplow applications.
WARNING!
Snowplows and other aftermarket equipment should not
be added to the front end of your vehicle. The airbag
crash sensors may be affected by the change in the front
end structure. The airbags could deploy unexpectedly or
could fail to deploy during a collision resulting in
serious injury or death.
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422 STARTING AND OPERATING
RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
NOTE:
• When towing your vehicle, always follow applicable stateand provincial laws. Contact state and provincial
Highway Safety offices for additional details. • Vehicles equipped with Active-Level Four Corner Air
Suspension must be placed in Transport mode before
tying them down (from the body) on a trailer or flatbed
truck. Refer to “Active-Level Four Corner Air Suspension
– If Equipped” for more information. If the vehicle cannot
WARNING!
Attaching a snowplow to this vehicle could adversely
affect performance of the airbag system in a collision. Do
not expect that the airbag will perform as described
earlier in this manual.CAUTION!
Using this vehicle for snowplow applications can cause
damage to the vehicle.
Towing Condition Wheels OFF The
Ground Two-Wheel Drive
Models Four-Wheel Drive Models
Flat Tow NONENOT ALLOWED See Instructions
• Transmission in PARK
• Transfer case in NEUTRAL (N)
• Tow in forward direction
Dolly Tow Front
NOT ALLOWED NOT ALLOWED
Rear OK NOT ALLOWED
On Trailer ALLOK OK
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STARTING AND OPERATING 423
be placed in Transport mode (for example, engine will not
run), tie-downs must be fastened to the axles (not to the
body). Failure to follow these instructions may cause fault
codes to be set and/or cause loss of proper tie-down
tension.
Recreational Towing — Two-Wheel Drive Models
DO NOT flat tow this vehicle. Damage to the drivetrain
will result.
Recreational towing (for two-wheel drive models) is allowed
ONLY if the rear wheels are OFF the ground. This may be
accomplished using a tow dolly or vehicle trailer. If using a
tow dolly, follow this procedure:
NOTE:
If vehicle is equipped with air suspension, ensure the vehicle
is set to Normal Ride Height.
1. Properly secure the dolly to the tow vehicle, following the dolly manufacturer's instructions.
2. Drive the rear wheels onto the tow dolly.
3. Apply the parking brake. Place the transmission in PARK. 4. Properly secure the rear wheels to the dolly, following the
dolly manufacturer's instructions.
5. Turn the ignition OFF.
6. Install a suitable clamping device, designed for towing, to secure the front wheels in the straight position.
Recreational Towing — Four-Wheel Drive Models
NOTE:
The transfer case must be shifted into NEUTRAL (N) for
recreational towing. The transmission must be shifted into
PARK for recreational towing. Refer to the following for the
proper transfer case NEUTRAL (N) shifting procedure for
your vehicle. CAUTION!
Towing with the rear wheels on the ground will cause
severe transmission damage. Damage from improper
towing is not covered under the New Vehicle Limited
Warranty.
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STARTING AND OPERATING 425
1. Bring the vehicle to a complete stop on level ground, withthe engine running. Apply the parking brake.
2. Press and hold the brake pedal.
3. Shift the transmission to NEUTRAL. The driver's door must be closed (or the driver's seat belt buckled) so that
the transmission will remain in NEUTRAL when the
brake pedal is released.
NOTE:
If vehicle is equipped with air suspension, ensure the vehicle
is set to Normal Ride Height.
4. Using a ballpoint pen or similar object, push and hold the recessed transfer case NEUTRAL (N) button (at the center
of the transfer case switches). The NEUTRAL (N) indi -
cator light will illuminate, and remain lit, when the shift
to NEUTRAL (N) is complete. After the shift is completed
and the NEUTRAL (N) light stays on, release the
NEUTRAL (N) button. 5. Release the parking brake.
6. Shift the transmission into REVERSE.
7. Release the brake pedal for five seconds and ensure that
there is no vehicle movement.
8. Repeat steps 6 and 7 with the transmission in DRIVE.
9. Shift the transmission to NEUTRAL. Apply the parking brake. Turn OFF the engine. For vehicles with Keyless
Enter-N-Go, push and hold the ENGINE START/STOP
button until the engine shuts off. The transmission will
automatically select PARK when the engine is turned off.
10. Turn the ignition to the OFF mode.
11. Attach the vehicle to the tow vehicle using a suitable tow bar.
12. Turn the ignition to the ON/RUN mode, but do not start the engine.
13. Release the parking brake.
14. Turn the ignition OFF.
CAUTION!
It is necessary to follow these steps to be certain that the
transfer case is fully in NEUTRAL (N) before
recreational towing to prevent damage to internal parts.
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426 STARTING AND OPERATING
NOTE:
• Steps 2 and 3 are requirements that must be met beforepushing the NEUTRAL (N) button, and must continue to
be met until the shift has been completed. If any of these
requirements are not met before pushing the NEUTRAL
(N) button or are no longer met during the shift, the
NEUTRAL (N) indicator light will flash continuously until
all requirements are met or until the NEUTRAL (N) button
is released.
• The ignition must be in the ON/RUN mode for a shift to take place and for the position indicator lights to be oper -
able. If the ignition is not in the ON/RUN mode, the shift
will not take place and no position indicator lights will be
on or flashing.
• A flashing NEUTRAL (N) position indicator light indi -
cates that shift requirements have not been met.
• If the vehicle is equipped with air suspension, the engine should be started and left running for a minimum of 60
seconds (with all the doors closed) at least once every 24
hours. This process allows the air suspension to adjust the
vehicle’s ride height to compensate for temperature
effects. Shifting Out Of NEUTRAL (N)
Use the following procedure to prepare your vehicle for
normal usage:
1. Bring the vehicle to a complete stop, leaving it connected
to the tow vehicle.
2. Press and hold the brake pedal.
3. Start the engine. Apply the parking brake. Shift the trans -
mission into NEUTRAL.
4. Using a ballpoint pen or similar object, push and hold the recessed transfer case NEUTRAL (N) button (at the center
of the transfer case switches).
5. When the NEUTRAL (N) indicator light turns off, release the NEUTRAL (N) button.
6. Turn the engine OFF. The transmission will automatically select PARK when the engine is turned off.
7. Release the brake pedal.
8. Disconnect vehicle from the tow vehicle.
9. Press and hold the brake pedal.
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446 IN CASE OF EMERGENCY
F11––Spare
F12 20 Amp Blue –Trailer Tow Park Lamp
F13 ––Spare
F14 –10 Amp Red AC Clutch
F15 –5 Amp Tan Intelligent Battery Sensor (IBS)
F16 ––Spare
F17 –20 Amp Yellow Air Suspension
F18 –15 Amp Blue AGS / Rear Axle Cooling Valve / Active Air
Dam
F19 ––Spare
F20 –20 Amp Yellow Adjustable Pedals
F21 30 Amp Pink –Power Side Step
F22 50 Amp Red –I Air Module
F23 ––Spare
F24 –20 Amp Yellow TCM SBW
F25 40 Amp Green –Exterior Lights 2
F26 50 Amp Red –ESP Module
F27 30 Amp Pink –Front Wiper
F28 –10 Amp Red PCM / ECM
F29 40 Amp Green –ESP Module
Cavity
Cartridge Fuse Micro Fuse Description
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IN CASE OF EMERGENCY 453
(Continued)
F6050 Amp Red –Mod Inverter
F61 ––Spare
F62 A&B –10 Amp Red ITBM / Mod Occupant Class / Mod IAIR
Suspension / Mod HVAC Snsr Incar Temp /
Rear Coolant Temp / PTS / Mod IRCM
F63 ––Spare
F64 ––Spare
F65 –10 Amp Red Mod ORC
F66 –10 Amp Red Run - Accessory Feed
Cavity
Cartridge Fuse Micro Fuse Description
CAUTION!
• When installing the power distribution center cover, it is important to ensure the cover is properly positioned
and fully latched. Failure to do so may allow water to
get into the power distribution center and possibly
result in an electrical system failure.
• When replacing a blown fuse, it is important to useonly a fuse having the correct amperage rating. The use
of a fuse with a rating other than indicated may result
in a dangerous electrical system overload. If a properly
rated fuse continues to blow, it indicates a problem in
the circuit that must be corrected. CAUTION!
(Continued)
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454 IN CASE OF EMERGENCY
JACKING AND TIRE CHANGING NOTE:
If your vehicle is equipped with an air suspension system,
there is a feature which allows the automatic leveling to be
disabled to assist with changing a tire.
This feature can be activated through the Uconnect system.
Refer to “Uconnect Settings” in “Multimedia” for further
information.
Jack Location
The jack and jack tools are stored under the front passenger
seat.
WARNING!
• Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to
avoid the danger of being hit when operating the jack
or changing the wheel.
• Being under a jacked-up vehicle is dangerous. The vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center where
it can be raised on a lift.
• Never start or run the engine while the vehicle is on a jack.
• The jack is designed to be used as a tool for changing tires only. The jack should not be used to lift the
vehicle for service purposes. The vehicle should be
jacked on a firm level surface only. Avoid ice or slip -
pery areas.
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