2019 RAM CHASSIS CAB air condition

9
 DEALER SERVICE ........................................................... 417 
Engine Oil — Gas Engine .......................................... 418
Engine Oil Filter ......................................................... 419
Engine Air Cleaner Filter ......................................... 420
Air Conditioner Maintenance ................................. 421
Accessory Drive Belt Inspection ................................ 426
Body Lubrication ....................................................... 428
Windshield Wiper Blades ......................................... 428
Exhaust System ........................................................... 431
Cooling System ........................................................... 433
Brake System ............................................................... 438
Automatic Transmission ............................................ 439
Rear Axle And 4x4 Front Driving Axle Fluid
Level .......................................................................... 442
Transfer Case ............................................................... 444
 HOISTING ......................................................................... 444
 TIRES .................................................................................. 444 
Tire Safety Information ............................................ 444
Tires — General Information ................................... 454
Tire Types ..................................................................... 460
Spare Tires — If Equipped ..................................... 461
Wheel And Wheel Trim Care ................................. 464
Tire Chains (Traction Devices) ................................. 465

Tire Rotation Recommendations ............................... 466  DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...............................................468 
Treadwear .....................................................................469 
Traction Grades............................................................ 469 
Temperature Grades ................................................... 469
 STORING THE VEHICLE .............................................470
 BODYWORK ......................................................................470 
Protection From Atmospheric Agents ....................470 
Body And Underbody Maintenance .........................471 
Preserving The Bodywork .......................................... 471
 INTERIORS .......................................................................472 
Seats And Fabric Parts ................................................472 
Plastic And Coated Parts ............................................473 
Leather Parts.................................................................474 
Glass Surfaces ..............................................................474
TECHNICAL SPECIFICATIONS  IDENTIFICATION DATA ...............................................475 
Vehicle Identification Number ................................. 475
 BRAKE SYSTEM ...............................................................476 
Hydraulic Brake Assist ...............................................476
 WHEEL AND TIRE TORQUE SPECIFICATIONS .....476

Torque Specifications ................................................477

GETTING TO KNOW YOUR VEHICLE 77
• 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 2

78 GETTING TO KNOW YOUR VEHICLE
Manual Climate Control Descriptions
Icon 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 79
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.Icon Description
2

80 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 83
Icon Description
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 87
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.
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.Icon Description
2

88 GETTING TO KNOW YOUR VEHICLE
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:
• For Manual Climate Controls, if the system is in Mix, Floor
or Defrost Mode, the A/C can be turned off, but the A/C
system shall remain active to prevent fogging of the
windows.
• If fog or mist appears on the windshield or side glass,
select Defrost mode, and increase 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 radiator), for an accumulation of dirt or insects.
Clean with a gentle water spray from the front of the radi -
ator and through the condenser. MAX A/C
MAX A/C sets the control for maximum cooling perfor -
mance.
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 position can be
adjusted to desired user settings. Pressing other settings will
cause the MAX A/C operation to switch to the selected
setting and MAX A/C to exit.
Recirculation
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 condi -
tions exist that could create fogging on the inside of the
windshield.
On systems with Manual Climate Controls, if equipped, the
Recirculation mode is not allowed in Defrost mode to
improve window clearing operation. Recirculation is
disabled automatically if this mode is selected. Attempting
to use Recirculation while in this mode causes the LED in the
control button to blink and then turns off.