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8. Climate Control OFF Button
Press and release this button to turn the Climate Control
ON/OFF.
9. Temperature Control Down Button
Push the button on the faceplate for cooler temperature
settings. On the touchscreen, slide the temperature bar
towards the blue arrow button for cooler temperature
settings.
10. Temperature Control Up Button
Push the button on the faceplate for warmer temperature
settings. On the touchscreen, slide the temperature bar
towards the blue arrow button for cooler temperature
settings.
Recirculation Control
When outside air contains smoke, odors, or
high humidity, or if rapid cooling is desired,
you may wish to recirculate interior air by
pressing the RECIRCULATION control button.
Recirculation mode should only be used temporarily. The
recirculation LED will illuminate on the blower control
knob when this button is selected. Push the button a
second time to turn off the Recirculation mode LED and
allow outside air into the vehicle.
NOTE:In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in Defrost mode to improve window
clearing operation. Recirculation will be disabled auto-
matically if these modes are selected.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 409
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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.
7. Passenger Temperature Control Up Button
(Uconnect® 8.4)
Provides the passenger with independent temperature
control. Push the button on the faceplate for warmer
temperature settings or on the touchscreen, press and
slide the temperature bar towards the red arrow for
warmer temperature settings.
NOTE:Pressing this button while in Sync mode will
automatically exit Sync.
8. Passenger Temperature Control Down Button
(Uconnect® 8.4)
Provides the passenger with independent temperature
control. Push the button on the faceplate for cooler
temperature settings or on the touchscreen, press and
slide the temperature bar towards the blue arrow for
cooler temperature settings.
NOTE:Pressing this button while in Sync mode will
automatically exit Sync.
9. SYNC
Press the Sync button on the touchscreen to toggle the
Sync feature On/Off. The Sync indicator is illuminated
4
UNDERSTANDING YOUR INSTRUMENT PANEL 413
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•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 demis-
ter outlets.
NOTE:BI-LEVEL mode is designed under comfort con-
ditions to provide cooler air out of the panel outlets and
warmer air from the floor outlets.
•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
Air comes from the floor, defrost and side
window demist outlets. This mode works best
in cold or snowy conditions.
12. Climate Control OFF Button
Press and release this button to turn the Climate Control
ON/OFF.
13. Driver Temperature Control Down Button
(Uconnect® 8.4)
Provides the driver with independent temperature con-
trol. Push the button on the faceplate for cooler tempera-
ture settings or on the touchscreen, press and slide the
temperature bar towards the blue arrow for cooler tem-
perature settings.
NOTE:In Sync mode, this button will also automatically
adjust the passenger temperature setting at the same time.
14.Driver Temperature Control Up Button (Uconnect® 8.4)
Provides the driver with independent temperature con-
trol. Push the button on the faceplate button for warmer
4
UNDERSTANDING YOUR INSTRUMENT PANEL 415
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temperature settings or on the touchscreen, press and
slide the temperature bar towards the red arrow for
warmer temperature settings.
NOTE:In Sync mode, this button will also automatically
adjust the passenger temperature setting at the same
time.
15. Temperature Control (Uconnect® 5.0)
Press the temperature button on the touchscreen to regu-
late the temperature of the air inside the passenger com-
partment. Moving the temperature bar into the red area,
indicates warmer temperatures. Moving the temperature
bar into the blue area indicates cooler temperatures.
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 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.
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 adjust blower speed if
needed.
•If your air conditioning performance seems lower than
expected, check the front of the A/C condenser (lo-
cated in front of the radiator), for an accumulation of
dirt or insects. Clean with a gentle water spray from
416 UNDERSTANDING YOUR INSTRUMENT PANEL
Page 448 of 871

▫3.6L Engine..........................634
▫5.7L/6.4L Engines.....................635
▫Reformulated Gasoline.................635
▫Gasoline/Oxygenate Blends..............636
▫E-85 Usage In Non-Flex Fuel Vehicles.......636
▫MMT In Gasoline.....................637
▫Materials Added To Fuel................637
▫Fuel System Cautions...................637
▫Carbon Monoxide Warnings.............638
!FLEXIBLE FUEL (3.6L ENGINE ONLY) —
IF EQUIPPED.........................639
▫E-85 General Information...............639
▫Ethanol Fuel (E-85)....................640
▫Fuel Requirements....................641
▫Selection Of Engine Oil For Flexible Fuel Vehicles
(E-85) And Gasoline Vehicles.............641
▫Starting............................642
▫Cruising Range.......................642
▫Replacement Parts....................642
▫Maintenance........................643
!ADDING FUEL........................643
▫Loose Fuel Filler Cap Message............645
!VEHICLE LOADING....................646
▫Certification Label....................646
!TRAILER TOWING.....................648
▫Common Towing Definitions.............648
446 STARTING AND OPERATING
Page 449 of 871
▫Trailer Hitch Type and Maximum Trailer
Weight.............................656
▫Trailer Towing Weights (Maximum Trailer
Weight Ratings)......................657
▫Trailer And Tongue Weight..............657
▫Towing Requirements..................658
▫Towing Tips.........................667
!SNOWPLOW.........................669
▫1500 Models Only.....................669
▫2500/3500 Models Only.................670
!RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)...................673
▫Towing This Vehicle Behind Another Vehicle . . .673
▫Recreational Towing — Two-Wheel Drive
Models.............................674
▫Recreational Towing — Four-Wheel Drive
Models.............................6755
STARTING AND OPERATING 447
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WARNING!
•Never pour fuel or other flammable liquids into
the throttle body air inlet opening in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury.
•Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle.
•If the vehicle has a discharged battery, booster
cables may be used to obtain a start from a booster
battery or the battery in another vehicle. This type
of start can be dangerous if done improperly. Refer
to “Jump Starting” in “What To Do In Emergen-
cies” for further information.
If the engine has been flooded, it may start to run, but not
have enough power to continue running when the igni-
tion button/key is released. If this occurs, continue
cranking with the accelerator pedal pushed all the way to
the floor. Release the accelerator pedal and the ignition
button/key once the engine is running smoothly.
If the engine shows no sign of starting after two 10-
second periods of cranking with the accelerator pedal
held to the floor, the “Normal Starting” procedure should
be repeated.
After Starting
The idle speed is controlled automatically and it will
decrease as the engine warms up.
452 STARTING AND OPERATING
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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.
1500 Models
The engine block heater cord is routed under the hood on
the passenger side of the vehicle near the right head lamp
assembly. It is located between the front grill and the
radiator, but underneath the black upper seal.
2500/3500 Models
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.
458 STARTING AND OPERATING