RAM 3500 Chassis Cab (2019 year). Instruction — part 5

76 GETTING TO KNOW YOUR VEHICLE

Mist Feature

When a single wipe to clear off road mist or spray from a

passing vehicle is needed, push the washer knob, located on

the end of the multifunction lever, inward to the first detent

and release. The wipers will cycle one time and automati-

cally shut off.
NOTE:

The mist feature does not activate the washer pump; there-

fore, no washer fluid will be sprayed on the windshield. The

wash function must be used in order to spray the windshield

with washer fluid.

Rain Sensing Wipers — If Equipped

This feature senses moisture on the windshield and automat-

ically activates the wipers for the driver. The feature is espe-

cially useful for road splash or overspray from the

windshield washers of the vehicle ahead. Rotate the end of

the multifunction lever to one of five settings to activate this

feature.
NOTE:

This feature can be programmed through the Uconnect

system. Refer to “Uconnect Settings” in “Multimedia” for

further information.

The sensitivity of the system can be adjusted with the multi-

function lever. Wiper delay position 1 is the least sensitive,

and wiper delay position 5 is the most sensitive. Position 3

should be used for normal rain conditions. Positions 1 and 2

can be used if the driver desires less wiper sensitivity. Posi-

tions 4 and 5 can be used if the driver desires more sensi-

tivity. Place the wiper switch in the O (off) position when not

using the system.
NOTE:
• The Rain Sensing feature will not operate when the wiper

switch is in the low or high-speed position.

• The Rain Sensing feature may not function properly when

ice, or dried salt water is present on the windshield.

• Use of Rain-X or products containing wax or silicone may

reduce Rain Sensing performance.

The Rain Sensing system has protection features for the

wiper blades and arms, and will not operate under the

following conditions:
• Low Ambient Temperature — When the ignition is first

turned ON, the Rain Sensing system will not operate until

the wiper switch is moved, vehicle speed is greater than

0 mph (0 km/h), or the outside temperature is greater than

32°F (0°C).

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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 instruction 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.

Instruction Climate Controls

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78 GETTING TO KNOW YOUR VEHICLE

Instruction 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 instructionly 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

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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

81

Climate Controls With A Touchscreen Overview

Uconnect 4/4C/4C NAV With 8.4–inch Display Automatic Temperature Controls

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82 GETTING TO KNOW YOUR VEHICLE

Uconnect 4C NAV With 12–inch Display Automatic Tem-

perature Controls

Control Descriptions

NOTE:

Icons and descriptions can vary based upon vehicle equip-

ment.

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 instruction 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 instructionly 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.

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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 instruction 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

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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 instruction

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

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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

instructionly 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 instructionly adjust the blower and airflow

mode settings. Also, make sure to select only Panel, Bi-Level,

or Floor modes.
NOTE:
• For Instruction 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 Instruction 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 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 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.
Instruction Operation Override

This system offers a full complement of instruction override

features. The AUTO symbol in the front ATC display will be

turned off when the system is being used in the instruction

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

2