air suspension Ram 2500 2018 Owner's Manual

Air Suspension (Remote Lowering Of The Vehicle)
— If Equipped
For easy entry and loading, your vehicle can be
lowered by pushing the key fob air suspension
lowering button two times. When key fob low-
ering is requested, the vehicle will send a series
of chirps and flashes to alert the customer that the opera-
tion has begun and will continue these alerts until it
successfully lowers.
The following conditions must be met for the vehicle to
lower remotely:
• The vehicle must not already be in Entry/Exit (Park)
ride height.
• The vehicle battery must be fully charged.
• All doors must be closed.
• The key fob must be out of the vehicle. Canceling Remote Lowering
Vehicle lowering can be cancelled at anytime. When vehicle
lowering is canceled, the vehicle will raise up to the next
defined level and lock out the remote lowering feature
until the ignition has been cycled ON/OFF.
To cancel vehicle lowering, push the key fob air suspension
lowering button one time during the lowering process.
When vehicle lowering is canceled, the horn will chirp two
times and the turn signal lamps will flash four times. Once
raising is completed, the horn will chirp one time.
NOTE:
Refer to “Air Suspension System” in “Starting And
Operating” for further information.
Replacing The Battery In The Key Fob With Remote
Control
The recommended replacement battery is one CR2032
battery.
NOTE:
• Perchlorate Material — special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/perchlorate
• Do not touch the battery terminals that are on the back
housing or the printed circuit board.
24 GETTING TO KNOW YOUR VEHICLE

The instrument cluster display screens are located in the
center portion of the cluster and consists of eight sections:
1. Main Screen — The inner ring of the display willilluminate in grey under normal conditions, yellow for
non critical warnings, red for critical warnings, and
white for on demand information.
2. Audio / Phone Information and Submenu Information — Whenever there are submenus available, the position
within the submenus is shown here.
3. Selectable Information (Compass, Outside Temp, Range to Empty, Trip A, Trip B, Average Fuel Economy, Trailer
Trip (distance only), Trailer Brake Gain, Time)
4. Telltales/Indicators
5. Gear Selector Status
6. Selectable Menu Icons
7. Air Suspension Status – If Equipped
8. 4WD Status
9. Selectable Gauge 2 (Trans Temp, Oil Temp, Oil Life, Trailer Brake, Current Fuel Economy) 10. Selectable Gauge 1 (Trans Temp, Oil Temp, Oil Life,
Trailer Brake, Current fuel economy)
The instrument cluster display area will normally display
the main menu or the screens of a selected feature of the
main menu. The main display area also displays “pop up”
messages that consist of approximately 60 possible warn-
ing or information messages. These pop up messages fall
into several categories:
• Five Second Stored Messages
When the appropriate conditions occur, this type of mes-
sage takes control of the main display area for five seconds
and then returns to the previous screen. Most of the
messages of this type are then stored (as long as the
condition that activated it remains active) and can be
reviewed from the “Messages” main menu item. As long as
there is a stored message, an “i” will be displayed in the
instrument cluster display’s compass/outside temp line.
Examples of this message type are “Right Front Turn Signal
Lamp Out” and “Low Tire Pressure.”
• Unstored Messages
This message type is displayed indefinitely or until the
condition that activated the message is cleared. Examples
176 GETTING TO KNOW YOUR INSTRUMENT PANEL

•Engage Park Brake To Prevent Rolling
• Transmission Too Cold Idle With Engine On
• Washer Fluid Low
• Service Air Suspension System
• Heavy Duty Air Suspension System Disabled
• Selected Ride Height Not Permitted Due To Speed
• Selected Ride Height Not Permitted Due To Payload
• Selected Ride Height Not Permitted - Payload Too Light
• Battery Low Start Engine To Change Ride Height
• Normal Ride Height Achieved
• Aerodynamic Ride Height Achieved
• Off Road 1 Ride Height Achieved
• Off Road 2 Ride Height Achieved
• Entry/Exit Ride Height Achieved
• Selected Ride Height Not Permitted
• Service Air Suspension System Immediately
• Reduce Speed To Maintain Selected Ride Height
• Air Suspension System Cooling Down Please Wait •
Vehicle Cannot Be Lowered Door Open
• Off Road 2 Watch For Clearance
• Entry/Exit Watch For Clearance
• Air Suspension Temporarily Disabled For Jacking And
Tire Change
• Battery Low Start Engine To Change Ride Height
The Reconfigurable Telltales section is divided into the
white telltales area on the right, yellow telltales in the
middle, and red telltales on the left.
Display Menu Items
Push and release the upordown arrow button until the
desired selectable menu icon is highlighted in the instru-
ment cluster display.
Speedometer
Push and release the upordown arrow button until the
speedometer menu item is highlighted in the instrument
cluster display. Push and release the rightarrow button to
cycle the display between mph and km/h.
Vehicle Info
Push and release the upordown arrow button until the
Vehicle Info menu item is highlighted in the instrument
180 GETTING TO KNOW YOUR INSTRUMENT PANEL

cluster display. Push and release therightarrow button to
enter the submenus items of Vehicle Info. Follow the
directional prompts to access or reset any of the following
Vehicle Info submenu items:
• Tire Pressure
• Transmission Temp (Automatic only)
• Oil Temp
• Oil Life
• Air Suspension — If Equipped
• Coolant Temp — If Equipped
• Oil Pressure — If Equipped
• Battery Voltage — If Equipped
• Gauge Summary — If Equipped
• Engine Hours
Fuel Economy
Push and release the upordown arrow button until the
Fuel Economy menu item is highlighted in the instrument
cluster display. Push and Hold the rightarrow button to
reset Average Fuel Economy.
• Current Fuel Economy Gauge •
Average Fuel Economy Value
• Range To Empty
Trip A/Trip B
Push and release the upordown arrow button until the
Trip menu item is highlighted in the instrument cluster
display. Push and release the rightarrow button to enter
the submenus of Trip A and Trip B. The Trip A or Trip B
information will display the following:
• Distance
• Average Fuel Economy
• Elapsed Time
Push and hold rightarrow button to reset all information.
Trailer Tow
Push and release the upordown arrow button until the
Trailer Tow menu item is highlighted in the instrument
cluster display. Push and release the rightarrow button
and the next screen will display the following trailer trip
information:
• Trip (trailer specific) Distance: Push and hold the right
arrow button to reset the distance.
• Trailer Brake
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 181

Setting NamesSetting Names
Abbreviated (Left Submenu Layer) Sub-Menus (Right Submenu Layer)
22 Commercial Settings Commercial
• Aux Switches
• Power Take-Off
• PIN Setup
NOTE: If the vehicle’s PIN is forgotten or not known,
see an authorized dealer to have the PIN reset.
23 Air Suspension Display Alerts Air Susp. Alerts
All; Warnings Only
24 Aero Ride Height Mode Aero Mode
On; Off
25 Tire/Jack Mode Tire/Jack Mode On; Off
26 Transport Mode Transport Mode On; Off
27 Wheel Alignment Mode Wheel Alignment
On; Off
28 Horn w/ Remote Lower Horn w/ Rmt Lwr
On; Off
29 Lights w/ Remote Lower Lights w/ Rmt Lwr
On; Off
30 Trailer Select Trailer SelectTrailer 1; Trailer 2; Trailer 3; Trailer 4
31 Brake Type Brake Type Light Electric; Heavy Electric; Light EOH; Heavy EOH
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 185

WARNING!
If you continue operating the vehicle when the Trans-
mission Temperature Warning Light is illuminated you
could cause the fluid to boil over, come in contact with
hot engine or exhaust components and cause a fire.
CAUTION!
Continuous driving with the Transmission Tempera-
ture Warning Light illuminated will eventually cause
severe transmission damage or transmission failure.
— Rear Fog Indicator — If Equipped
This indicator will illuminate when the rear fog lights are
on.
— Air Suspension Payload Protection Indicator
Light — If Equipped
This telltale will turn on to indicate that the maximum
payload may have been exceeded or load leveling cannot
be achieved at its current ride height. Protection Mode will
automatically be selected in order to “protect” the air
suspension system, air suspension adjustment is limited
due to payload.
— TOW/HAUL Indicator Light
This light will illuminate when TOW/HAUL mode is
selected.
— Cargo Light — If Equipped
The cargo light will illuminate when the cargo light is
activated by pushing the cargo light button on the head-
light switch.
— Air Suspension Off-Road 1 Indicator Light —
If Equipped
This light will illuminate when the air suspension system is
set to the Off-Road 1 setting. For further information, refer
to “Air Suspension System” in “Starting And Operating.”
— Air Suspension Off-Road 2 Indicator Light —
If Equipped
This light will illuminate when the air suspension system is
set to the Off-Road 2 setting. For further information, refer
to “Air Suspension System” in “Starting And Operating”.
— Air Suspension Ride Height Raising Indicator
Light— If Equipped
This light will blink and alert the driver that the vehicle is
changing to a higher ride height.
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 197

— Air Suspension Ride Height Lowering
Indicator Light— If Equipped
This light will blink and alert the driver that the vehicle is
changing to a lower ride height.
— Air Suspension Entry/Exit Indicator Light— If
Equipped
This light comes on when the vehicle is automatically
lowered from ride height position downward for easy
entry and exit of the vehicle.
– 4WD Indicator Light — If Equipped
This light alerts the driver that the vehicle is in the
four-wheel drive mode, and the front and rear driveshafts
are mechanically locked together forcing the front and rear
wheels to rotate at the same speed.
— 4WD Low Indicator Light — If Equipped
This light alerts the driver that the vehicle is in the
four-wheel drive LOW mode. The front and rear drive-
shafts are mechanically locked together forcing the front
and rear wheels to rotate at the same speed. Low range
provides a greater gear reduction ratio to provide increased
torque at the wheels. Refer to “Four-Wheel Drive Operation — If Equipped” in
“Starting And Operating” for further information on four-
wheel drive operation and proper use.
Green Indicator Lights
— Park/Headlight On Indicator Light
This indicator will illuminate when the park lights or
headlights are turned on.
— Front Fog Indicator Light — If Equipped
This indicator will illuminate when the front fog lights are
on.
— Turn Signal Indicator Lights
When the left or right turn signal is activated, the turn
signal indicator will flash independently and the corre-
sponding exterior turn signal lamps will flash. Turn signals
can be activated when the multifunction lever is moved
down (left) or up (right).
NOTE:
•
A continuous chime will sound if the vehicle is driven
more than 1 mile (1.6 km) with either turn signal on.
• Check for an inoperative outside light bulb if either
indicator flashes at a rapid rate.
198 GETTING TO KNOW YOUR INSTRUMENT PANEL

▫Four-Position Electronically Shifted Transfer Case
(Eight Speed Transmission Only) —
If Equipped ..........................336
▫ Five-Position Electronically Shifted Transfer Case
(Eight Speed Transmission Only) —
If Equipped ..........................339
 AIR SUSPENSION SYSTEM (1500 MODELS) —
IF EQUIPPED ..........................344
▫ Description .......................... .344
▫ Air Suspension Modes ...................347
▫ Instrument Cluster Display Messages .........348
▫ Operation ............................348
 AIR SUSPENSION SYSTEM
(REBEL MODELS ONLY) — IF EQUIPPED .....350
▫ Description .......................... .350
▫ Air Suspension Modes ...................353
▫ Instrument Cluster Display Messages .........354
▫ Operation ............................354 
AIR SUSPENSION SYSTEM (2500/3500 MODELS) —
IF EQUIPPED .......................... .356
▫ Description .......................... .356
▫ Air Suspension Modes ...................357
▫ Instrument Cluster Display Messages .........358
▫ Operation ............................358
 AXLE LOCKER SYSTEM — POWER WAGON
MODELS ONLY (IF EQUIPPED) ..............359
 STABILIZER/SWAY BAR SYSTEM — POWER
WAGON ONLY ........................ .361
 SAFE OFF-ROAD DRIVING — POWER WAGON
ONLY ................................362
▫ Off-Road Driving Tips And Vehicle
Characteristics ........................362
▫ Driving In Snow, Mud And Sand ............364
▫ Crossing Obstacles (Rocks And Other High
Points) ............................. .366
▫ Hill Climbing ..........................368
▫ Driving

Through Water ...................370
284 STARTING AND OPERATING

AIR SUSPENSION SYSTEM (1500 MODELS) — IF
EQUIPPED
Description
The air suspension system provides full time load leveling
capability along with the benefit of being able to adjust
vehicle height by the push of a button.
1 — Up Button
2 — Down Button
3 — Entry/Exit Mode Indicator (Customer selectable)
4 — Normal Ride Height Indicator (Customer selectable)
5 — Off-Road 1 Indicator (Customer selectable)
6 — Off-Road 2 Indicator (Customer selectable)
NOTE:The vehicle will automatically enter Aero Mode
when the vehicle speed remains between 62 mph (100 km/h)
and 66 mph (106 km/h) for greater than 20 seconds or if the
vehicle speed exceeds 66 mph (106 km/h).
• Normal Ride Height (NRH) – This is the standard
position of the suspension and is meant for normal
driving.
• Off-Road 1 (OR1) (Raises the vehicle approximately
1 in (26 mm)) – This position should be the primary
position for all off-road driving until Off Road 2 (OR2) is
needed. A smoother and more comfortable ride will
result. To enter OR1, push the “Up” button once from
the NRH position while the vehicle speed is below
35 mph (56 km/h). When in the OR1 position, if the
vehicle speed remains between 40 mph (64 km/h) and
50 mph (80 km/h) for greater than 20 seconds or if the
vehicle speed exceeds 50 mph (80 km/h), the vehicle
will be automatically lowered to NRH. Off-Road 1 may
not be available due to vehicle payload, an instrument
cluster message will be displayed when this occurs.
Refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information.
Air Suspension Switch
344 STARTING AND OPERATING

in Entry/Exit or drive the vehicle over 15 mph
(24 km/h). Entry/Exit mode may not be available due to
vehicle payload, an instrument cluster message will be
displayed when this occurs. Refer to “Instrument Clus-
ter Display” in “Getting To Know Your Instrument
Panel” for further information.
NOTE: Entry/Exit mode may be achieved using your key
fob for easier entry/loading. Refer to “Keys” in “Getting To
Know Your Vehicle” for further information.
CAUTION!
When in ENTRY/EXIT setting, be aware of your sur-
roundings, you may not have the clearance required for
certain areas and vehicle damage may occur.
The system requires that the ignition be in ON/RUN
position or the engine running for all user requested
changes. When lowering the vehicle all of the doors, must
be closed. If a door is opened at any time while the vehicle
is lowering the change will not be completed until the open
door(s) is closed. This system uses a lifting and lowering pattern which
keeps the headlights from incorrectly shining into oncom-
ing traffic. When raising the vehicle, the rear of the vehicle
will move up first and then the front. When lowering the
vehicle, the front will move down first and then the rear.
After the engine is turned off, it may be noticed that the air
suspension system operates briefly, this is normal. The
system is correcting the position of the vehicle to ensure a
proper appearance.
To assist with changing a spare tire, the air suspension
system has a feature which allows the automatic leveling to
be disabled. Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for further
information.
NOTE:
If equipped with a touch screen radio all enabling/
disabling of air suspension features must be done through
the radio. Refer to “Uconnect Settings” in “Multimedia” for
further information.
WARNING!
The air suspension system uses a high pressure vol-
ume of air to operate the system. To avoid personal
(Continued)
346 STARTING AND OPERATING