air condition Ram 2500 2018 User Guide

NOTE:
• The interior lights will turn off if you placethe 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.
Air Suspension (Remote Lowering Of The
Vehicle) — If Equipped
For easy entry and loading, your
vehicle can be lowered by push-
ing the key fob air suspension
lowering button two times. When
key fob lowering 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 any-
time. 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 dur-
ing the lowering process. When vehicle low-
ering 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 “Start-
ing And Operating” for further information.
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.
NOTE:
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.
GETTING TO KNOW YOUR VEHICLE
16

Manual Climate Control With Touchscreen Descriptions
IconDescription
MAX A/C Setting
Press the button to select MAX A/C. This is the coldest setting and will put the A/C to its maximum power.
A/C Button
Push the A/C button on the touchscreen or faceplate to engage the Air Conditioning (A/C). A LED will illuminate when
the A/C system is engaged.
Recirculation Button
Push 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.
Front Defrost Setting
Push the button to activate Defrost mode. Air comes from the windshield and side window demist outlets. Use De-
frost mode with maximum temperature settings for best windshield and side window defrosting and defogging.
Rear Defrost Button
Push and release the Rear Defrost Control button to turn on the rear window defroster and the heated outside mirrors
(if equipped). An indicator will illuminate when the rear window defroster is on. The rear window defroster automati-
cally turns off after ten minutes.
GETTING TO KNOW YOUR VEHICLE
38

IconDescription
Temperature Control
Press the arrows on the touchscreen or faceplate to regulate the temperature of the air inside the passenger compart-
ment. Pressing the down arrow indicates cooler temperatures, and pressing the up arrow indicates warmer tempera-
tures.
Blower Control
There are seven blower speeds. Press the buttons to regulate the amount of air forced through the system in any mode
you select. The blower speed increases as you move the control clockwise from the off position.
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.
Floor Mode
Floor Mode
Air comes from the floor outlets. A slight amount of air is directed through the defrost and side window demister out-
lets.
39

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 Opera-
tion” for more information.
43

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 set-
ting. 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 touch-
screen.
• 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. For Uconnect 3, press the button
to access the blower screen and control the blower.
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.
45

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 ModeMix Mode
Air is directed through the floor, defrost, and side window demister outlets. This setting works best in cold or snowy con-
ditions 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.
• Do not use scrapers, sharp instru- ments, or abrasive window cleaners on
the interior surface of the window.
CAUTION!
• 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 dehu-
midified 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.
• If your air conditioning performance seems lower than expected, check the front of the
A/C condenser (located in front of the ra-
diator), for an accumulation of dirt or in-
GETTING TO KNOW YOUR VEHICLE
46

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 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.
47

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.
GETTING TO KNOW YOUR VEHICLE
48

WARNING!
• Your motorized door or gate will openand close while you are programming
the universal transceiver. Do not pro-
gram the transceiver if people or pets are
in the path of the door or gate.
• Do not run your vehicle in a closed
garage or confined area while program-
ming the transceiver. Exhaust gas from
your vehicle contains Carbon Monoxide
(CO) which is odorless and colorless.
Carbon Monoxide is poisonous when in-
haled and can cause you and others to
be severely injured or killed.
Programming HomeLink To A
Miscellaneous Device
Refer to “Programming HomeLink To A Ga-
rage Door Opener” for the procedure on how
to program HomeLink to a miscellaneous
device, as it follows the same procedure. Be
sure to determine if the device has a rolling
code, or non-rolling code before beginning
the programming process. NOTE:
Canadian radio frequency laws require trans-
mitter signals to time-out (or quit) after sev-
eral seconds of transmission, which may not
be long enough for HomeLink to pick up the
signal during programming. Similar to this
Canadian law, some U.S. gate operators are
designed to time-out in the same manner.
The procedure may need to be preformed
multiple times to successfully pair the device
to your HomeLink buttons.
Reprogramming A Single
HomeLink Button
To reprogram a single HomeLink button that
has been previously trained, without erasing
all the channels, follow the procedure below.
Be sure to determine whether the new device
you want to program the HomeLink button to
has a Rolling Code, or Non-rolling Code.
1. Cycle the ignition to the ON/RUN
position. NOTE:
For vehicle’s equipped with Keyless
Enter-N-Go, place the ignition in the RUN
position with the Engine ON. Make sure to
program HomeLink with the vehicle out-
side of the garage, or with the garage door
open at all times.
2. Push and hold the desired HomeLink but- ton until the instrument cluster display
shows the “CHANNEL # TRAINING”
message. Do not release the button.
3. Without releasing the button, proceed with
Step 2 in “Programming HomeLink To A
Garage Door Opener” and follow all re-
maining steps.
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, andGETTING TO KNOW YOUR VEHICLE
54

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 towing
73