2019 Ram 4500 Chassis Cab Owner's Manual

GETTING TO KNOW YOUR VEHICLE 87
Panel ModePanel 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
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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, Flooror 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.

GETTING TO KNOW YOUR VEHICLE 89
Automatic Temperature Control (ATC)
Automatic Operation
1. Push the AUTO button on the faceplate, or the AUTObutton 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 tempera -
ture is displayed, the system will achieve and automati -
cally 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 func -
tion 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”
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.
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
NOTE:
Refer to the chart at the end of this section for suggested
control settings for various weather conditions.
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90 GETTING TO KNOW YOUR VEHICLE
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. OAT
coolant (conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration of
coolant is used. Use of the Air Recirculation mode during
Winter months is not recommended, 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 adequate 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.
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 instruments, or abrasive window cleaners on the interior surface of the window.
• Keep all objects a safe distance from the window.

GETTING TO KNOW YOUR VEHICLE 91
Outside Air Intake
Make sure the air intake, located directly in front of the wind-
shield, is free of obstructions, 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 authorized dealer to service your cabin air
filter, and to have it replaced when needed. Operating Tips Chart
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92 GETTING TO KNOW YOUR VEHICLE
WINDOWS
Power Windows
Power Window ControlsPower Window Switches

The power window controls located on the driver's door trim
panel have up-down switches that give you fingertip control of
all power windows. There is a single opening and closing
switch on the front passenger door for passenger window
control and on the rear doors for rear window control. The
windows will operate when the ignition switch is turned to the ON/RUN or ACC position, and for up to 10 minutes after the
ignition is turned OFF or until a front door is opened.

NOTE:
The Key Off Power Delay feature will allow the power
windows to operate for up to 10 minutes after the ignition is
turned OFF. This feature is cancelled when either front door
is opened.
Auto-Down
Both the driver and front passenger window switch have an
Auto-Down feature. Push the window switch past the first
detent, release, and the window will go down automatically.
WARNING!
Never leave children unattended in a vehicle. Do not
leave the key fob in or near the vehicle or in a location
accessible to children, and do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go in the ACC
or ON/RUN mode. Occupants, particularly unattended
children, can become entrapped by the windows while
operating the power window switches. Such entrapment
may result in serious injury or death.

GETTING TO KNOW YOUR VEHICLE 93
To cancel the Auto-Down movement, operate the switch in
either the up or down direction and release the switch.
To stop the window from going all the way down during the
Auto-Down operation, pull up on the switch briefly.
To open the window part way, push to the switch to the first
detent and release it when you want the window to stop.
Auto-Up Feature With Anti-Pinch Protection — If
Equipped
Pull the window switch fully upward to the second detent,
release, and the window will go up automatically.
To stop the window from going all the way up during the
Auto-Up operation, push down on the switch briefly.
To close the window part way, lift the window switch to the
first detent and release when you want the window to stop.
NOTE:
If the window runs into any obstacle during the
Auto-Closure, it will reverse direction and then go back
down. Remove the obstacle and use the window switch
again to close the window. Any impact due to rough road
conditions may trigger the auto reverse function unexpect-edly during auto closure. If this happens, pull the switch
lightly to the first detent and hold to close the window manu-
ally.
Reset Auto-Up
Should the Auto-Up feature stop working, the window may
need to be reset. To reset Auto-Up:
1. Make sure the door is fully closed.
2. Pull the window switch up to close the window
completely and continue to hold the switch up for an
additional two seconds after the window is closed.
3. Push the window switch down firmly to the second detent to open the window completely and continue to
hold the switch down for an additional two seconds after
the window is fully open.
WARNING!
There is no anti-pinch protection when the window is
almost closed. Be sure to clear all objects from the
window before closing.
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94 GETTING TO KNOW YOUR VEHICLE
Window Lockout Switch
The window lockout switch on the driver's door allows you
to disable the window control on the rear passenger doors.
To disable the window controls on the rear passenger doors,
push the window lock switch into the latched or down posi-
tion. To enable the window controls, push the window lock
switch again and return the switch to the released or up posi -
tion.
Window Lockout Switch Power Sliding Rear Window — If Equipped
The switch for the power sliding rear window is located on
the overhead console.
Power Sliding Rear Window Switch
Push the switch rearward to open the glass. Pull the switch
forward to close the glass.