2019 Ram 2500 air condition

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DEALER SERVICE ........................................................... 506
Engine Oil — Gas Engine .......................................... 507
Engine Oil Filter ......................................................... 509
Engine Air Cleaner Filter ......................................... 509
Air Conditioner Maintenance ................................. 511
Accessory Drive Belt Inspection ................................ 516
Body Lubrication ....................................................... 517
Windshield Wiper Blades ......................................... 517
Exhaust System ........................................................... 520
Cooling System ........................................................... 522
Brake System ............................................................... 527
Automatic Transmission ............................................ 528
Rear Axle And 4x4 Front Driving Axle Fluid
Level .......................................................................... 529
Transfer Case ............................................................... 530
 HOISTING ......................................................................... 531 
TIRES ..................................................................................531
Tire Safety Information ............................................531
Tires — General Information ...................................541
Tire Types .....................................................................547
Spare Tires — If Equipped .....................................548
Wheel And Wheel Trim Care ..................................551
Tire Chains (Traction Devices) ................................. 552
Tire Rotation Recommendations ..............................553
 DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...............................................555
Treadwear .....................................................................556
Traction Grades............................................................ 556
Temperature Grades ................................................... 556
 STORING THE VEHICLE .............................................557
 BODYWORK ......................................................................557
Protection From Atmospheric Agents ....................557
Body And Underbody Maintenance .........................558
Preserving The Bodywork .......................................... 558
 INTERIORS .......................................................................561
Seats And Fabric Parts ................................................561
Plastic And Coated Parts ............................................562
Leather Parts.................................................................563
Glass Surfaces ..............................................................563

20 GETTING TO KNOW YOUR VEHICLE
The Panic Alarm will stay on for three minutes 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 inthe ACC or ON/RUN position while the Panic Alarm is
activated. However, 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 pushing 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 operation 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 Oper -
ating” for further information.

GETTING TO KNOW YOUR VEHICLE 79
•Transmission In NEUTRAL Position — When the igni-
tion is ON, and the transmission is in the NEUTRAL posi -
tion, the Rain Sensing system will not operate until the
wiper switch is moved, vehicle speed is greater than
5 mph (8 km/h), or the gear selector is moved out of the
NEUTRAL position.
• Remote Start Mode Inhibit — On vehicles equipped with
Remote Starting system, Rain Sensing wipers are not oper -
ational when the vehicle is in the remote start mode. Once
the operator is in the vehicle and has placed the ignition
switch in the RUN position, Rain Sensing wiper operation
can resume, if it has been selected, and no other inhibit
conditions (mentioned previously) exist.
CLIMATE CONTROLS
The Climate Control System allows you to regulate the
temperature, air flow, and direction of air circulating
throughout the vehicle. The controls are located on the
touchscreen (if equipped), on the sides of the touchscreen, or
on the instrument panel below the radio.
Climate Controls Without A Touchscreen Overview
The controls for the manual heating and air conditioning
system in this vehicle consist of a series of outer rotary dials
and inner push knobs. These comfort controls can be set to
obtain desired interior conditions.
Manual Climate Controls
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80 GETTING TO KNOW YOUR VEHICLE
Manual Climate Control DescriptionsIcon Description
MAX A/C Setting
Rotate the temperature control knob until it is set to MAX A/C. This is the coldest setting and puts the
A/C to maximum power.
A/C Button
Push the A/C button to engage the Air Conditioning (A/C). A LED will illuminate when the A/C
system is engaged.
Recirculation Button
Press and release this button on the touchscreen, or push the button on the faceplate, to change the
system between recirculation mode and outside air mode. Recirculation can be used when outside
conditions, such as smoke, odors, dust, or humidity are present. Recirculation can be used in all
modes except for Defrost. Recirculation may be unavailable if conditions exist that could create
fogging on the inside of the windshield. The A/C can be deselected manually without disturbing the
mode control selection. 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.
Temperature Control
Use this control knob to regulate the temperature of the air inside the passenger compartment.
Rotating the knob counterclockwise, from top center into the blue area of the scale, indicates cooler
temperatures. Rotating the knob clockwise, into the red area, indicates warmer temperatures.
Blower Control
There are seven blower speeds. Use this control knob 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.

GETTING TO KNOW YOUR VEHICLE 81
Mode Control
Rotate the Mode Control Knob to change the airflow distribution mode. The airflow distribution
mode can be adjusted so air comes from the instrument panel outlets, floor outlets, defrost outlets and
demist outlets. The Mode settings are as follows:
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 outlets.
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Description
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82 GETTING TO KNOW YOUR VEHICLE
Economy Mode
If ECONOMY mode is desired, push the A/C button to turn
off the LED indicator and the A/C compressor. Rotate the
temperature control knob to the desired temperature. Also,
make sure to select only Panel, Bi-Level or Floor modes.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.
Front Defrost Setting
Turn the Mode Control knob to the Defrost mode. Air comes from the windshield and side window
demist outlets. Use Defrost mode with maximum temperature settings for best windshield and side
window defrosting and defogging.
Rear Defrost Button
Push and release the button on the touchscreen, or push and release the button on the faceplate, to
turn on the rear window defroster and the heated outside mirrors (if equipped). An indicator
illuminates when the rear window defroster is on. The rear window defroster turns off after a short
period of time.
Icon
Description

GETTING TO KNOW YOUR VEHICLE 85
IconDescription
MAX A/C
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.
NOTE: The MAX A/C button is only available on the touchscreen.
A/C Control Knob
A/C Button 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. Recirculation can be used in all modes. Recirculation may be unavailable (button on the
touchscreen greyed out) if conditions exist that could create fogging on the inside of the windshield.
The A/C can be deselected manually without disturbing the mode control selection. 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.
2

GETTING TO KNOW YOUR VEHICLE 89
Panel Mode Panel ModeAir 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 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
This button turns the Climate Control System off.
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Description
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