2018 Ram 4500 Chassis Cab air condition

To Unlock The Doors And Tailgate
Push and release the unlock button on the
key fob once to unlock the driver’s door. Push
the unlock button twice within five seconds
to unlock all doors, and the tailgate. The turnsignal lights will flash to acknowledge the
unlock signal. The illuminated entry system
will also turn on.
NOTE:
The instrument cluster display or Uconnect
Settings are setup for driver door first, other-
wise this will unlock all doors.
To Lock The Doors And Tailgate
Push and release the lock button on the key
fob to lock all doors, and the tailgate. The
turn signal lights will flash and the horn will
chirp to acknowledge the signal.
Using The Panic Alarm
To turn the Panic Alarm feature on or off,
push the Panic button on the key fob. When
the Panic Alarm is activated, the turn signals
will flash, the horn will pulse on and off, and
the interior lights will turn on.
The Panic Alarm will stay on for three min-
utes unless you turn it off by either pushing
the Panic button a second time or drive the
vehicle at a speed of 15 mph (24 km/h) or
greater.
NOTE:
• The interior lights will turn off if you place
the ignition in the ACC or ON/RUN position
while the Panic Alarm is activated. How-
ever, the exterior lights and horn will remain
on.
• You may need to be less than 35 ft (11 m) from the vehicle when using the key fob to
turn off the Panic Alarm due to the radio
frequency noises emitted by the system.
General Information
The following regulatory statement applies to
all radio frequency (RF) devices equipped in
this vehicle:
This device complies with Part 15 of the FCC
Rules and with Industry Canada license-
exempt RSS standard(s). Operation is sub-
ject to the following two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference received, including interference that may
cause undesired operation.
Passive Entry Key Fob
1 — Air Suspension
2 — Unlock
3 — Lock
4 — Remote Start
5 — Panic
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Control Descriptions
NOTE:
Icons and descriptions can vary based upon vehicle equipment.
IconDescription
MAX A/C Button
Press and release to change the current setting, the indicator illuminates when MAX A/C is on. Performing this function
again will cause the MAX A/C operation to switch into manual mode and the MAX A/C indicator will turn off.
A/C Button
Press and release the button on the touchscreen, or push and release the button on the faceplate, to change the current
setting, the indicator illuminates when A/C is on.
Recirculation Button
Press and release this button to change the system between recirculation mode and outside air mode.
Recirculation can be used when outside conditions such as smoke, odors, dust, or high humidity are present.
NOTE:
• Continuous use of the Recirculation mode may make the inside air stuffy and window fogging may occur.
Extended use of this mode is not recommended.
• The use of the Recirculation mode in cold or damp weather could cause windows to fog on the inside, because
of moisture buildup inside the vehicle. Select the outside air position for maximum defogging.
• Recirculation can be used in all modes except for Defrost.
• The A/C can be deselected manually without disturbing the mode control selection.
AUTO Button — If Equipped
Automatically controls the interior cabin temperature by adjusting airflow distribution and amount.
Toggling this function will cause the system to switch between manual mode and automatic modes.
Refer to “Automatic Operation” for more information.
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IconDescription
SYNC Button — If Equipped
Press the SYNC button on the touchscreen to toggle the SYNC feature on/off. The SYNC indicator is illuminated when
this feature is enabled. SYNC is used to synchronize the passenger temperature setting with the driver temperature
setting. The SYNC feature also synchronizes the rear passengers’ temperature to the driver temperature setting.
Changing the passenger temperature setting while in SYNC will automatically exit this feature.
Faceplate Knob
Touchscreen Buttons
Blower Control
Blower Control is used to regulate the amount of air forced through the climate system. There are seven blower speeds
available. The speeds can be selected using either the blower control knob on the faceplate or the buttons on the
touchscreen.
• Faceplate: The blower speed increases as you turn the blower control knob clockwise from the lowest blower setting.
The blower speed decreases as you turn the blower control knob counterclockwise.
• Touchscreen:
Use the small blower icon to reduce the blower setting and the large blower icon to increase the blower
setting. Blower can also be selected by pressing the blower bar area between the icons.
Panel Mode
Panel Mode
Air comes from the outlets in the instrument panel. Each of these outlets can be individually adjusted to direct the flow
of air. The air vanes of the center outlets and outboard outlets can be moved up and down or side to side to regulate
airflow direction. There is a shut off wheel located below the air vanes to shut off or adjust the amount of airflow from
these outlets.
Bi-Level Mode
Bi-Level Mode
Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and
side window demister outlets.
NOTE:
Bi-Level mode is designed under comfort conditions to provide cooler air out of the panel outlets and warmer air from
the floor outlets.
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IconDescription
Floor Mode
Floor Mode
Air comes from the floor outlets. A slight amount of air is directed through the defrost and side window demister
outlets.
Mix Mode
Mix Mode
Air is directed through the floor, defrost, and side window demister outlets. This setting works best in cold or snowy
conditions that require extra heat to the windshield. This setting is good for maintaining comfort while reducing
moisture on the windshield.
Climate Control OFF Button
Press and release this button on the touchscreen, or push the faceplate button, to turn the Climate Control System off.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
• Use care when washing the inside of the rear window. Do not use abrasive
window cleaners on the interior surface
of the window. Use a soft cloth and a
mild washing solution, wiping parallel
to the heating elements. Labels can be
peeled off after soaking with warm
water.
CAUTION!
• Do not use scrapers, sharp instru-ments, or abrasive window cleaners on
the interior surface of the window.
• Keep all objects a safe distance from
the window.
Climate Control Functions
A/C (Air Conditioning)
The Air Conditioning (A/C) button allows the
operator to manually activate or deactivate
the air conditioning system. When the air conditioning system is turned
on, cool dehumidified air will flow through
the outlets into the cabin. For improved fuel
economy, press the A/C button to turn off the
air conditioning and manually adjust the
blower and airflow mode settings. Also, make
sure to select only Panel, Bi-Level, or Floor
modes.
NOTE:
• If fog or mist appears on the windshield or
side glass, select Defrost mode, and in-
crease blower speed if needed.
GETTING TO KNOW YOUR VEHICLE
42

• If your air conditioning performance seemslower than expected, check the front of the
A/C condenser (located in front of the ra-
diator), for an accumulation of dirt or in-
sects. Clean with a gentle water spray from
the front of the radiator and through the
condenser.
MAX A/C
MAX A/C sets the control for maximum cool-
ing performance.
Press and release to toggle between MAX A/C
and the prior settings. The button illuminates
when MAX A/C is on.
In MAX A/C, the blower level and mode posi-
tion can be adjusted to desired user settings.
Pressing other settings will cause the MAX
A/C operation to switch to the selected set-
ting and MAX A/C to exit.
Recirculation
When outside air contains smoke, odors, or
high humidity, or if rapid cooling is desired,
you may wish to recirculate interior air by
pressing the Recirculation control button.
The Recirculation indicator will illuminate when this button is selected. Press the button
a second time to turn off the Recirculation
mode and allow outside air into the vehicle.
NOTE:
In cold weather, use of Recirculation mode
may lead to excessive window fogging. The
Recirculation feature may be unavailable
(button on the touchscreen greyed out) if
conditions exist that could create fogging on
the inside of the windshield.
Automatic Temperature Control
(ATC) — If Equipped
Automatic Operation
1. Push the AUTO button on the faceplate,
or the AUTO button on the touchscreen on
the Automatic Temperature Control (ATC)
Panel.
2. Next, adjust the temperature you would like the system to maintain by adjusting
the driver and passenger temperature
control buttons. Once the desired tem-
perature is displayed, the system will
achieve and automatically maintain that
comfort level. 3. When the system is set up for your comfort
level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system
to function automatically.
NOTE:
• It is not necessary to move the temperature settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.
• The temperature can be displayed in U.S. or Metric units by selecting the US/Metric
customer-programmable feature. Refer to
the “Uconnect Settings” in “Multimedia”
in your Owner’s Manual at www.mopar.com/
en-us/care/owners-manual.html (U.S.
Residents) or www.owners.mopar.ca
(Canadian Residents) for further information.
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
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Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Use of the Air Recircula-
tion mode during Winter months is not rec-
ommended, because it may cause window
fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for
about five minutes, in fresh air with the
blower setting on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc-
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust
and pollen from the air. Contact an autho-
rized dealer to service your cabin air filter,
and to have it replaced when needed.
HOOD
To Open The Hood
To open the hood, two latches must be re-
leased.
Hood Release Lever Location
GETTING TO KNOW YOUR VEHICLE
44

5 MPH (8 km/H) if the DEF system is not
serviced within less than 200 miles (322 km)
of the fault being detected.
When the DEF system needs to be serviced
the following warnings will display:
•Service DEF System See Dealer — This mes-
sage will display when the fault is initially
detected, each time the vehicle is started,
and periodically during driving. The mes-
sage will be accompanied by a single
chime. We recommend you drive to your
nearest authorized dealer and have your
vehicle serviced as soon as possible.
• 5 MPH Max Speed in 150 mi Service DEF
System See Dealer — This message will
display if the DEF system has not been
serviced after the “Service DEF System –
See Dealer” message is displayed. This
message will continuously display until the
mileage counter reaches zero, and will be
accompanied by a periodic chime. The
message will continue to countdown until it
reaches zero unless the vehicle is serviced.
We recommend you drive to your nearest
authorized dealer and have your vehicle
serviced immediately. NOTE:
Under some circumstances this mileage
counter may start with a value of less than
150 miles (241 km). For example, if recur-
ring faults are detected in a time interval of
less than 40 hours, the counter may restart
at the value where it stopped when a previ-
ous fault was temporarily remedied, or at a
minimum of 50 miles (80 km).
•
5 MPH Max Speed on Restart, Long Idle or
Refuel Service DEF See Dealer — This mes-
sage will continuously display when the
mileage counter reaches zero, and will be
accompanied by a periodic chime.
The vehicle will only be capable of a maxi-
mum speed of 5 MPH upon the first of the
following conditions to occur: – If the vehicle is shutoff and restarted.
– If the vehicle is idled for an extendedperiod of time, approximately one hour
or greater.
– If the system detects that the level of fuel in the tank has increased. •
5 MPH Max Speed Service DEF System See
Dealer — This message will continuously
display, and will be accompanied by a pe-
riodic chime. Although the vehicle can be
started and placed in gear, the vehicle will
only operate at a maximum speed of
5 MPH. Your vehicle will require towing,
see your authorized dealer for service.
NOTE:
When this message is displayed, the engine
can still be started. However, the vehicle
will only operate at a maximum speed of
5 MPH.
• Incorrect DEF Detected See Dealer — This
message will display when the fault is ini-
tially detected, each time the vehicle is
started, and periodically during driving.
The message will be accompanied by a
single chime. We recommend you drive to
your nearest authorized dealer and have
your vehicle serviced as soon as possible.
RAM Active Air System
Your vehicle is equipped with an advanced
Ram Active Air system that provides en-
hanced performance, especially when towingGETTING TO KNOW YOUR INSTRUMENT PANEL
58

WARNING LIGHTS AND MESSAGES
Red Warning Lights
— Seat Belt Reminder Warning Light
This light indicates when the driver or pas-
senger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or
ACC/ON/RUN position and if the driver’s seat
belt is unbuckled, a chime will sound and the
light will turn on. When driving, if the driver
or front passenger seat belt remains unbuck-
led, the Seat Belt Reminder Light will flash or
remain on continuously and a chime will
sound. Refer to “Occupant Restraints Sys-
tems” in “Safety” for further information.
— Air Bag Warning Light
This light indicates a fault with the air bag,
and will turn on for four to eight seconds as a
bulb check when the ignition is placed in the
ON/RUN or ACC/ON/RUN position. This light
will illuminate with a single chime when a
fault with the air bag has been detected, it
will stay on until the fault is cleared. If thelight is either not on during startup, stays on,
or turns on while driving, have the system
inspected at an authorized dealer as soon as
possible.
— Brake Warning Light
This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on it may
indicate that the parking brake is applied,
that the brake fluid level is low, or that there
is a problem with the anti-lock brake system
reservoir.
If the light remains on when the parking
brake has been disengaged, and the fluid
level is at the full mark on the master cylinder
reservoir, it indicates a possible brake hy-
draulic system malfunction or that a problem
with the Brake Booster has been detected by
the Anti-Lock Brake System (ABS) / Elec-
tronic Stability Control (ESC) system. In this
case, the light will remain on until the condi-
tion has been corrected. If the problem is
related to the brake booster, the ABS pump
will run when applying the brake, and a brake
pedal pulsation may be felt during each stop.The dual brake system provides a reserve
braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in
either half of the dual brake system is indi-
cated by the Brake Warning Light, which will
turn on when the brake fluid level in the
master cylinder has dropped below a speci-
fied level.
The light will remain on until the cause is
corrected.
NOTE:
The light may flash momentarily during sharp
cornering maneuvers, which change fluid
level conditions. The vehicle should have
service performed, and the brake fluid level
checked.
If brake failure is indicated, immediate repair
is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
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