2019 Ram 3500 air suspension

462 IN CASE OF EMERGENCY
F41–10 Amp Red Active Grille Shutter / Active Air Dam – If
Equipped
F42 –20 Amp Yellow Horn
F43 –15 Amp Blue Heated Steering Wheel – If Equipped (HD Only)
F44 –10 Amp Red Diagnostic Port
F46 –10 Amp Red Upfitters Relay Coil – If Equipped (HD Only)
Spare (DS 1500 Only)
F49 –10 Amp Red Instrument Panel Cluster / HVAC (DS 1500
Only)
Instrument Cluster / MOD CSG (HD Only)
F50
– 20 Amp Yellow Air Suspension Control Module – If Equipped
F51 –10 Amp Red Ignition Node Module / Keyless Ignition Node
Module, Radio Frequency Hub Module /
Electric Steering Column Lock - If Equipped
F52 –5 Amp Tan Battery Sensor
F53 –20 Amp Yellow Trailer Tow – Left Turn/Stop Lights - If
Equipped
F54 –20 Amp Yellow Non Memory Adjustable Pedals - If Equipped
F56 –15 Amp Blue Additional Diesel Content - If Equipped (DS
1500 Only)
Cavity
Cartridge Fuse Micro Fuse Description

466 IN CASE OF EMERGENCY
F82–10 Amp Red Steering Column Control Module / Cruise
Control
F83 ––No Connection
F84 –15 Amp Blue ASBM / HVAC / ICS / Rear Heated Seat
Switches
F85 –10 Amp Red Airbag Module
F86 –10 Amp Red Airbag Module
F87 –10 Amp Red Air Suspension / ITBM / Steering Column
Control Module / MOD Gateway CAN-C
Trailer TPM (HD Only)
Air Suspension / Trailer Tow / DC/DC
Converter (Voltage Stabilizer) / Steering
Column Control Module / Occupant
Classification Sensor (DS 1500 Only)
F88 –15 Amp Blue Instrument Panel Cluster
F90/F91 –20 Amp Yellow IGN or BATT Customer Selectable – If Equipped
(HD Only)
Power Outlet (Rear Seats) Customer Selectable
(DS 1500 Only)
F93 –20 Amp Yellow Cigar Lighter - If Equipped
Cavity
Cartridge Fuse Micro Fuse Description

IN CASE OF EMERGENCY 469
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.
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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IN CASE OF EMERGENCY 495
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service.
If the transmission and drivetrain are operable, disabled
vehicles may also be towed as described under “Recreational
Towing” in the “Starting And Operating” section.
NOTE:
Vehicles equipped with the Air Suspension System must be
placed in Transport mode, before tying them down (from the
body) on a trailer or flatbed truck. If the vehicle cannot 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.
Refer to "Air Suspension System — If Equipped" in "Starting
And Operating" for more information.
CAUTION!
• Racing the engine or spinning the wheels may lead to transmission overheating and failure. Allow the engine
to idle with the transmission in NEUTRAL for at least
one minute after every five rocking-motion cycles. This
will minimize overheating and reduce the risk of trans -
mission failure during prolonged efforts to free a stuck
vehicle.
• When “rocking” a stuck vehicle by shifting between DRIVE and REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
• Revving the engine or spinning the wheels too fast may lead to transmission overheating and failure. It can also
damage the tires. Do not spin the wheels above 30 mph
(48 km/h) while in gear (no transmission shifting occur -
ring).
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546 SERVICING AND MAINTENANCE
(Continued)
NOTE:
Wheel Valve Stem must be replaced as well when installing
new tires due to wear and tear in existing tires.
Keep dismounted tires in a cool, dry place with as little expo-
sure to light as possible. Protect tires from contact with oil,
grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for wear
and correct cold tire inflation pressures. The manufacturer
strongly recommends that you use tires equivalent to the
originals in size, quality and performance when replacement
is needed. Refer to the paragraph on “Tread Wear Indica -
tors” in this section. Refer to the Tire and Loading Informa -
tion placard or the Vehicle Certification Label for the size
designation of your tire. The Load Index and Speed Symbol
for your tire will be found on the original equipment tire
sidewall.
See the Tire Sizing Chart example found in the “Tire Safety
Information” section of this manual for more information
relating to the Load Index and Speed Symbol of a tire. It is recommended to replace the two front tires or two rear
tires as a pair. Replacing just one tire can seriously affect
your vehicle’s handling. If you ever replace a wheel, make
sure that the wheel’s specifications match those of the orig
-
inal wheels.
It is recommended you contact an authorized tire dealer or
original equipment dealer with any questions you may have
on tire specifications or capability. Failure to use equivalent
replacement tires may adversely affect the safety, handling,
and ride of your vehicle.
WARNING!
• Do not use a tire, wheel size, load rating, or speed rating other than that specified for your vehicle. Some combi -
nations of unapproved tires and wheels may change
suspension dimensions and performance characteris -
tics, resulting in changes to steering, handling, and
braking of your vehicle. This can cause unpredictable
handling and stress to steering and suspension compo -
nents. You could lose control and have a collision
resulting in serious injury or death. Use only the tire
and wheel sizes with load ratings approved for your
vehicle.

MULTIMEDIA 589
Suspension — If Equipped
After pressing the “Suspension” button on the touchscreen, the following settings will be available:Setting Name
Selectable Options
Auto Entry/Exit — If Equipped OnOff
Setting Name Selectable Options
Auto Entry/Exit Suspension OnOff
NOTE:
When the “Auto Entry/Exit Suspension” feature is selected, the vehicle automatically lowers from ride height position when
vehicle shifted to park for easy entry/exit. Display Suspension Messages AllWarning Only
Tire Jack Mode OnOff
NOTE:
When this feature is selected the air suspension system is disabled to prevent auto leveling of the suspension, while the
vehicle is on a jack changing a tire. Transport Mode OnOff
NOTE:
When the “Transport Mode” feature is selected, the air suspension system is disabled to assist with flat bed towing. Wheel Alignment Mode OnOff

NOTE:
The “Wheel Alignment Mode” feature prevents auto leveling of the air suspension while performing a wheel alignment service.
Before performing a wheel alignment, this mode must be enabled. Refer to an authorized dealer for further information.

9

MULTIMEDIA 615
Air Suspension — If Equipped
After pressing the “Suspension” button on the touchscreen, the following settings will be available:Setting Name Selectable Options
Display Suspension Messages All
Warnings Only
Tire Jack Mode On Off
NOTE:
When the “Tire Jack Mode” feature is selected, the air suspension system is disabled to assist with changing a spare tire. Transport Mode On Off
NOTE:
When the “Transport Mode” feature is selected, the air suspension system lowers and then disables to assist with flat bed
towing. Wheel Alignment Mode On Off
NOTE:
Before performing a wheel alignment, the “Wheel Alignment Mode” must be enabled. Refer to an authorized dealer for
further information. Four Corner Air Suspension Modes — If Equipped Tire Jack Mode
Transport Mode Wheel Alignment Mode
NOTE:
There are four air suspension modes designed to protect the system in unique situations. Tire Jack Mode is selected to assist
in changing a spare tire. Transport Mode is selected to assist when the vehicle is being flat bed towed. Wheel Alignment
Mode is selected before performing a wheel alignment, refer to an authorized dealer for information.
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MULTIMEDIA 635
Suspension — If Equipped
After pressing the “Suspension” button on the touchscreen, the following settings will be available:Setting Name Selectable Options
Display Suspension Messages All
Warning Only
Tire Jack Mode On Off
NOTE:
When the “Tire Jack Mode” feature is selected, the air suspension system is disabled to assist with changing a spare tire. Transport Mode On Off
NOTE:
When the “Transport Mode” feature is selected, the air suspension system lowers and then disables to assist with flat bed
towing. Wheel Alignment Mode On Off
NOTE:
Before performing a wheel alignment, the “Wheel Alignment Mode” must be enabled. Refer to an authorized dealer for
further information. Four Corner Air Suspension Modes — If Equipped Tire Jack Mode
Transport Mode Wheel Alignment Mode
NOTE:
There are four air suspension modes designed to protect the system in unique situations. Tire Jack Mode is selected to assist
in changing a spare tire. Transport Mode is selected to assist when the vehicle is being flat bed towed. Wheel Alignment
Mode is selected before performing a wheel alignment, refer to an authorized dealer for information.
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