climate control RAM CHASSIS CAB 2019 User Guide

84 GETTING TO KNOW YOUR VEHICLE
AUTO Control
Knob
AUTO Button AUTO
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” within this section for more information.
Front Defrost Button
Press and release the touchscreen button, or push and release the button on the faceplate, to change
the current airflow setting to Defrost mode. The indicator illuminates when this feature is on. Air
comes from the windshield and side window demist outlets. When the defrost button is selected, the
blower level may increase. Use Defrost mode with maximum temperature settings for best
windshield and side window defrosting and defogging. When toggling the front defrost mode
button, the climate system will return to previous setting.
Rear Defrost Button
Press 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 will
illuminate when the rear window defroster is on. The rear window defroster automatically turns off
after ten minutes.Icon Description

GETTING TO KNOW YOUR VEHICLE 85
Driver and Passenger Temperature Up and Down Buttons
Provides the driver and passenger with independent temperature control. Push the red button on the
faceplate or touchscreen or press and slide the temperature bar towards the red arrow button on the
touchscreen for warmer temperature settings. Push the blue button on the faceplate or touchscreen or
press and slide the temperature bar towards the blue arrow button on the touchscreen for cooler
temperature settings.
NOTE:
The numbers within the temperature display will only appear if the system is equipped with an auto -
matic climate control system.
SYNC
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. Changing the passenger’s temperature setting while in
SYNC will automatically exit this feature.
NOTE:
The SYNC button is only available on the touchscreen.Icon Description
2

86 GETTING TO KNOW YOUR VEHICLE
Blower Control
Knob
Blower Control
Buttons Blower Control
Blower Control is used to regulate the amount of air forced through the climate system. There are
seven blower speeds available. Adjusting the blower will cause automatic mode to switch to manual
operation. 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 counter -
clockwise.
• 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.
NOTE:
On Uconnect 4C NAV With 12–inch display radios, pressing the blower control button below one
turns the Climate Control system OFF.
Mode Control
Knob
Mode Controls
Button Modes Control
Control Knob: Push 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.
Touchscreen: Select Mode by pressing one of the Mode buttons on the touchscreen 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.Icon Description

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.

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
2

120 GETTING TO KNOW YOUR VEHICLE
All power inverters are designed with built-in overload
protection. If the power rating of 400 Watts is exceeded, the
power inverter shuts down. Once the electrical device has
been removed from the outlet the inverter should reset.
Rear Center Console Power Inverter Outlet
NOTE:
400 Watts is the maximum for the inverter, not each outlet. If
three outlets are in use, 400 Watts is shared amongst the
devices plugged in. If equipped, there may be a 115 Volt (400 Watts Maximum)
inverter located to the right of the center stack, just below the
climate controls. This inverter can power cellular phones,
electronics and other low power devices requiring power up
to 400 Watts. Certain high-end video game consoles exceed
this power limit, as will most power tools.
Center Stack Power Inverter
To turn on the power outlet, simply plug in the device. The
outlet turns off when the device is unplugged.

166 SAFETY
6. Push the “ESC Off” button located in the lower switch
bank below the climate control four times within 20
seconds. The “ESC Off Indicator Light” should turn on
and turn off two times.
7. Rotate the steering wheel back to center and then an addi -
tional slightly more than one-half turn to the right.
8. Turn the ignition to the OFF mode and then back to ON. If the
sequence was completed properly, the “ESC Off Indicator
Light” will blink several times to confirm HSA is disabled.
9. Repeat these steps if you want to return this feature to its
previous setting.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of the
driven wheels. If wheel spin is detected, the TCS may apply
brake pressure to the spinning wheel(s) and/or reduce engine
power to provide enhanced acceleration and stability. A
feature of the TCS, Brake Limited Differential (BLD), functions
similar to a limited slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is spinning
faster than the other, the system will apply the brake of the
spinning wheel. This will allow more engine power to be
applied to the wheel that is not spinning. BLD may remain
enabled even if TCS and ESC are in a reduced mode. Electronic Stability Control (ESC)
This system enhances directional control and stability of the
vehicle under various driving conditions. ESC corrects for
oversteering or understeering of the vehicle by applying the
brake of the appropriate wheel(s) to assist in counteracting
the oversteer or understeer condition. Engine power may
also be reduced to help the vehicle maintain the desired path.
ESC uses sensors in the vehicle to determine the vehicle path
intended by the driver and compares it to the actual path of
the vehicle. When the actual path does not match the
intended path, ESC applies the brake of the appropriate
wheel to assist in counteracting the oversteer or understeer
condition.
• Oversteer — when the vehicle is turning more than appro -
priate for the steering wheel position.
• Understeer — when the vehicle is turning less than appro -
priate for the steering wheel position.

240 SAFETY
Transporting Pets
Air Bags deploying in the front seat could harm your pet. An
unrestrained pet will be thrown about and possibly injured,
or injure a passenger during panic braking or in a collision.
Pets should be restrained in the rear seat (if equipped) in pet
harnesses or pet carriers that are secured by seat belts.
SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO AREA. Exhaust Gas
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.WARNING!
• Do not leave children or animals inside parked vehicles
in hot weather. Interior heat build-up may cause
serious injury or death.
• It is extremely dangerous to ride in a cargo area, inside or
outside of a vehicle. In a collision, people riding in these
areas are more likely to be seriously injured or killed.
• Do not allow people to ride in any area of your vehicle
that is not equipped with seats and seat belts.
• Be sure everyone in your vehicle is in a seat and using
a seat belt properly. WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing (CO), follow
these safety tips:
• Do not run the engine in a closed garage or in confined
areas any longer than needed to move your vehicle in or
out of the area.
• If you are required to drive with the trunk/liftgate/rear
doors open, make sure that all windows are closed and
the climate control BLOWER switch is set at high
speed. DO NOT use the recirculation mode.
• If it is necessary to sit in a parked vehicle with the
engine running, adjust your heating or cooling controls
to force outside air into the vehicle. Set the blower at
high speed.

SERVICING AND MAINTENANCE 469
Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
times as well on the government course as a tire graded
100. The relative performance of tires depends upon the
actual conditions of their use, however, and may depart
significantly from the norm due to variations in driving
habits, service practices, and differences in road charac -
teristics and climate.
Traction Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These grades represent the tire's ability to stop on
wet pavement, as measured under controlled conditions
on specified government test surfaces of asphalt and
concrete. A tire marked C may have poor traction perfor -
mance. Temperature Grades
The Temperature grades are A (the highest), B, and C,
representing the tire's resistance to the generation of heat
and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the material of the
tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance, which all
passenger vehicle tires must meet under the Federal
Motor Vehicle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory
test wheel, than the minimum required by law. WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or peak
traction characteristics.
7