Ram 3500 Chassis Cab 2020 Repair Manual

GETTING TO KNOW YOUR VEHICLE59
Faceplate Temperature
Knobs
Touchscreen
Temperature Buttons Driver and Passenger Temperature Up and Down Buttons
Provides the driver and passenger with independent temperature control. Push the red button (or rotate knob if equipped)
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 (or rotate knob if equipped) 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 automatic climate control
system.
Up and down buttons are only available on vehicles equipped with a 12-inch display.
SYNC
Press the SYNC button on the touchscreen to toggle the SYNC feature on/off. The SYNC indicator illuminates when SYNC is
on. SYNC synchronizes 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
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60GETTING TO KNOW YOUR VEHICLE
Faceplate Blower Knob
Touchscreen Blower Buttons Blower Control
Blower Control regulates 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 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 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.
NOTE:
On Uconnect 4C NAV With 12–inch display radios, pressing the blower control button below one turns the Climate Control
system OFF.
Faceplate Mode Button
Touchscreen Mode Buttons Mode Control
Mode Control regulates the airflow distribution. The airflow distribution outlets are: instrument panel outlets, floor outlets,
defrost outlets, and demist outlets.
Faceplate: Push the Mode button to change the airflow distribution mode.
Touchscreen:
Press one of the “MODE” buttons to change the airflow distribution mode.
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.
Icon Description

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GETTING TO KNOW YOUR VEHICLE61
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
Press and release this button to turn the Climate Control system ON/OFF.
Icon Description
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62GETTING 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 condi -
tioning system is turned on, cool dehumidified
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 manu -
ally 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 radi -
ator), for an accumulation of dirt or insects.
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 cooling
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 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 Recircu
-
lation feature may be unavailable (button on
the touchscreen greyed out) if conditions 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.
Automatic Temperature Control (ATC)
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 temperature is
displayed, the system will achieve and auto -
matically 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.

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GETTING TO KNOW YOUR VEHICLE63
The temperature can be displayed in U.S. or
Metric units by selecting the U.S./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.
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 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 Recirculation
mode during Winter months is not recom -
mended, 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 lubri -
cation 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.
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64GETTING TO KNOW YOUR VEHICLE
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, 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
WINDOWS
Power Windows — If Equipped
Power Window Controls

Power 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 placed in the
ON/RUN or ACC position, and for up to
10 minutes after the ignition is placed in the
OFF position or until a front door is opened.
WEATHER CONTROL
SETTINGS
Hot Weather And
Vehicle Interior Is Very Hot Set the mode control
to , on, and
blower on high. Roll
down the windows for a minute to flush out
the hot air. Adjust the
controls as needed to achieve comfort.
Warm Weather Turn on and set
the mode control to
the position.
Cool Sunny Operate in
position.
Cool & Humid Conditions Set the mode control
to position and
turn on to keep windows clear.
Cold Weather Set the mode control to the position. If windshield fogging
starts to occur, move
the control to the position.
WEATHER CONTROL
SETTINGS

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GETTING TO KNOW YOUR VEHICLE65
NOTE:
The Key Off Power Delay feature will allow the
power windows to operate for up to 10 minutes
after the ignition is placed in the OFF position.
This feature is cancelled when either front door
is opened.
Auto-Down — If Equipped
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. 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 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 unexpectedly
during auto closure. If this happens, pull the
switch lightly to the first detent and hold to close
the window manually.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!
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.
WARNING!
There is no anti-pinch protection when the
window is almost closed. Be sure to clear all
objects from the window before closing.2

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66GETTING TO KNOW YOUR VEHICLE
Window Lockout Switch — If Equipped
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
position. To enable the window controls, push
the window lock switch again and return the
switch to the released or up position.

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 window.
Pull the switch forward to close the window.
Manual Sliding Rear Window — If Equipped
A locking device in the center of the window
helps to prevent entry from the rear of the
vehicle. Squeeze the lock to release the
window.
Wind Buffeting
Wind buffeting can be described as the percep -
tion of pressure on the ears or a helicopter-type
sound in the ears. Your vehicle may exhibit wind
buffeting with the windows down, or the sunroof
(if equipped) in certain open or partially open
positions. This is a normal occurrence and can
be minimized. If the buffeting occurs with the rear windows open, open the front and rear
windows together to minimize the buffeting. If
the buffeting occurs with the sunroof open,
adjust the sunroof opening to minimize the
buffeting or open any window.
HOOD
To Open The Hood
To open the hood, two latches must be
released.

1. Pull the hood release lever located below
the steering wheel at the base of the instru -
ment panel.

Hood Release

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GETTING TO KNOW YOUR VEHICLE67
2. Reach into the opening beneath the center
of the hood and push the safety latch lever
to the left to release it, before raising the
hood.

Safety Latch Location

To Close The Hood

Lower the hood to approximately 12 inches (30 cm)
from the engine compartment and drop it. Make
sure that the hood is completely closed.

GARAGE DOOR OPENER — IF EQUIPPED
HomeLink® replaces up to three hand-held
transmitters that operate devices such as
garage door openers, motorized gates, lighting
or home security systems. The HomeLink® unit
is powered by your vehicle’s 12 Volt battery.
The HomeLink® buttons that are located on the
sun visor designate the three different Home -
Link® channels.

HomeLink® Buttons
NOTE:
HomeLink® is disabled when the Vehicle Secu
-
rity Alarm is active.
WARNING!
Be sure the hood is fully latched before
driving your vehicle. If the hood is not fully
latched, it could open when the vehicle is in
motion and block your vision. Failure to follow
this warning could result in serious injury or
death.
CAUTION!
To prevent possible damage, do not slam the
hood to close it. Use a firm downward push at
the front center of the hood to ensure that
both latches engage.
WARNING!
Your motorized door or gate will open and
close while you are programming the
universal transceiver. Do not program the
transceiver if people, pets or other objects
are in the path of the door or gate. Only use
this transceiver with a garage door opener
that has a “stop and reverse” feature as
required by Federal safety standards. This
includes most garage door opener models
manufactured after 1982. Do not use a
garage door opener without these safety
features.
Vehicle exhaust contains carbon monoxide,
a dangerous gas. Do not run your vehicle in
the garage while programming the trans -
ceiver. Exhaust gas can cause serious
injury or death.
2

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68GETTING TO KNOW YOUR VEHICLE
NOTE:
Only use this transceiver with a garage door
opener that has a “stop and reverse” feature as
required by federal safety standards. This
includes most garage door opener models
manufactured after 1982. Do not use a garage
door opener without these safety features. Call
toll-free 1-800-355-3515 or, on the Internet at
HomeLink.com for safety information or assis -
tance.
Before You Begin Programming HomeLink®
Be sure that your vehicle is parked outside of
the garage before you begin programming.
For more efficient programming and accurate
transmission of the radio-frequency signal it is
recommended that a new battery be placed in
the hand-held transmitter of the device that is
being programmed to the HomeLink® system.
To erase the channels, place the ignition in the
ON/RUN position, and push and hold the two
outside HomeLink® buttons (I and III) for up to
20 seconds or until the orange indicator
flashes. NOTE:
Erasing all channels should only be
performed when programming HomeLink®
for the first time. Do not erase channels when
programming additional buttons.
If you have any problems, or require assis
-
tance, please call toll-free 1-800-355-3515
or, on the Internet at HomeLink.com for infor-
mation or assistance.
Programming A Rolling Code
For programming garage door openers that
were manufactured after 1995. These garage
door openers can be identified by the “LEARN”
or “TRAIN” button located where the hanging
antenna is attached to the garage door opener.
NOTE:
It is NOT the button that is normally used to
open and close the door. The name and color of
the button may vary by manufacturer.
Training The Garage Door Opener

1. Place the ignition in the ON/RUN position.

2. Place the hand-held transmitter 1 to 3 inches (3 to 8 cm) away from the Home-
Link® button you wish to program while
keeping the HomeLink® indicator light in
view.
3. Push and hold the HomeLink® button you want to program while you push and hold
the hand-held transmitter button.
1 — Door Opener
2 — Training Button

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