2018 Ram 3500 Chassis Cab climate control

Automatic Climate Controls With A Touchscreen
Uconnect 3 With 5–inch Display With Automatic Temperature Controls
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GETTING TO KNOW YOUR VEHICLE 85

IconDescription
AUTO Button — If Equipped
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 auto-
matic modes. Refer to “Automatic Operation” 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 set-
tings 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
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
will illuminate when the rear window defroster is on. The rear window defroster automatically
turns off after ten minutes.
88 GETTING TO KNOW YOUR VEHICLE

IconDescription
Uconnect 3
Uconnect 4C/4C NAV
Driver and Passenger Temperature Up and Down Buttons
Provides the driver and passenger with independent temperature control. Push the up arrow
button on the faceplate, press the up arrow button on the touchscreen, or press and slide the
temperature bar towards the red arrow button on the touchscreen for warmer temperature set-
tings. Push the down arrow button on the faceplate, press the down arrow button on the touch-
screen, or press and slide the temperature bar towards the blue arrow button on the touchscreen
for cooler temperature settings. When the SYNC feature is active, the passenger ’s temperature
will move up and down with the driver ’s temperature, when it is increased and decreased, re-
spectively.
NOTE: Temperature numbers will only be displayed if the system is equipped with Automatic
Temperature Control.
SYNC Button — If Equipped
Press the SYNC button on the touchscreen to toggle the SYNC feature on/off. The SYNC indica-
tor is illuminated when this feature is enabled. SYNC is used to synchronize the passenger tem-
perature setting with the driver temperature setting. The SYNC feature also synchronizes the
rear passengers’ temperature to the driver temperature setting. Changing the passenger tem-
perature setting while in SYNC will automatically exit this feature.
Faceplate Knob
Blower Control
Blower Control is used to regulate 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.
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GETTING TO KNOW YOUR VEHICLE 89

IconDescription
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 on the touchscreen, or push the faceplate button, to turn the Cli-
mate Control System off.
CAUTION!
Failure to follow these cautions can cause damage to
the heating elements:
• Use care when washing the inside of the rear win-
dow. 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 heat-
ing 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 win-
dow.
• Keep all objects a safe distance from the window.
Climate Control Functions
A/C (Air Conditioning)
The Air Conditioning (A/C) button allows the operator to
manually activate or deactivate the air conditioning sys-
tem. When the air conditioning 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 manually adjust the
blower and airflow mode settings. Also, make sure to select
only Panel, Bi-Level, or Floor modes.
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GETTING TO KNOW YOUR VEHICLE 91

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 dam-
age 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 De-
frost 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.
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.
94 GETTING TO KNOW YOUR VEHICLE

6. Push the “ESC Off” button located in the lower switchbank 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 additional 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 torque 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 apply-
ing the brake of the appropriate wheel(s) to assist in
counteracting the oversteer or understeer condition. En-
gine 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
appropriate for the steering wheel position.
• Understeer — when the vehicle is turning less than
appropriate for the steering wheel position.
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SAFETY 165

SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO
AREA.
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.
Exhaust Gas
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 even-
tually 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 con-
trols to force outside air into the vehicle. Set the
blower at high speed.
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.
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SAFETY 231

Cold Weather Operation (Below –22°F Or 30°C)
To ensure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
After Starting
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a grounded,
three-wire extension cord.
Gasoline Engine Only
The engine block heater cord is routed through the grille by
the right front tow hook.
It includes a removable cap that is secured by a tethered
strap. It also has a c-clip that is used for storage when not
in use for the Winter months. During Winter months,
remove the heater cord wiring assembly from itself on the
c-clip.The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine and
drivetrain (transmission and axle) in your vehicle.
Drive moderately during the first 300 miles (500 km). After
the initial 60 miles (100 km), speeds up to 50 or 55 mph (80
or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration within the
limits of local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be detri-
mental and should be avoided.
The engine oil installed in the engine at the factory is a
high-quality energy conserving type lubricant. Oil changes
should be consistent with anticipated climate conditions
242 STARTING AND OPERATING