9
FUSES.................................................................................. 444
External Power Distribution Center ........................ 445
Internal Power Distribution Center ......................... 449
JACKING AND TIRE CHANGING .............................. 454
Jack Location ................................................................ 454
Removal Of Jack And Tools ....................................... 455
Removing The Spare Tire ........................................... 458
Preparations For Jacking ............................................ 462
Jacking Instructions ..................................................... 463
To Stow The Flat Or Spare ........................................ 468
Reinstalling The Jack And Tools ............................... 470
JUMP STARTING ............................................................ 472
Preparations For Jump Start ...................................... 472
Jump Starting Procedure ............................................ 473
IF YOUR ENGINE OVERHEATS .................................. 475
MANUAL PARK RELEASE ............................................ 476
FREEING A STUCK VEHICLE ...................................... 477
TOWING A DISABLED VEHICLE ................................ 478
Two-Wheel Drive Models .......................................... 480
Four-Wheel Drive Models.......................................... 480
Emergency Tow Hooks — If Equipped ................... 481
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) ................................................................................ 481
EVENT DATA RECORDER (EDR) ................................ 481
SERVICING AND MAINTENANCE
SCHEDULED SERVICING .............................................482
Maintenance Plan ........................................................483
Heavy Duty Use Of The Vehicle ...............................486
ENGINE COMPARTMENT ............................................487
3.6L Engine With Stop/Start .....................................487
5.7L Engine Without Stop/Start ................................488
5.7L Engine With Stop/Start ......................................489
Checking Oil Level ......................................................490
Adding Washer Fluid..................................................490
Maintenance-Free Battery .......................................... 491
Pressure Washing ........................................................491
DEALER SERVICE ........................................................... 492
Engine Oil — Gas Engine .......................................... 492
Engine Oil Filter ........................................................... 494
Engine Air Cleaner Filter ............................................494
Air Conditioner Maintenance ....................................496
Accessory Drive Belt Inspection ................................501
Body Lubrication .........................................................502
Windshield Wiper Blades ...........................................503
Exhaust System ........................................................... 505
Cooling System ........................................................... 506
2020_DT_1500_OM_US.book Page 9
10
Brake System ............................................................... 512
Automatic Transmission ........................................... 513
Rear Axle And 4x4 Front Driving Axle Fluid
Level ............................................................................. 515
Transfer Case ............................................................... 515
HOISTING ......................................................................... 516
TIRES................................................................................... 516
Tire Safety Information............................................... 516
Tires — General Information .................................... 525
Tire Types ..................................................................... 531
Spare Tires — If Equipped ......................................... 532
Wheel And Wheel Trim Care .................................... 535
Tire Chains (Traction Devices) .................................. 536
Tire Rotation Recommendations .............................. 537
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ............................................... 538
Treadwear..................................................................... 538
Traction Grades ........................................................... 538
Temperature Grades ................................................... 538
STORING THE VEHICLE................................................ 539
BODYWORK...................................................................... 539
Protection From Atmospheric Agents ...................... 539
Body And Underbody Maintenance......................... 540
Preserving The Bodywork.......................................... 540
INTERIORS .......................................................................543
Seats And Fabric Parts ................................................543
Plastic And Coated Parts ............................................544
Leather Parts.................................................................545
Glass Surfaces ..............................................................545
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA ...............................................546
Vehicle Identification Number ................................. 546
BRAKE SYSTEM ...............................................................546
WHEEL AND TIRE TORQUE SPECIFICATIONS ....... 546
Torque Specifications ..................................................547
FUEL REQUIREMENTS ..................................................548
3.6L Engine ..................................................................548
5.7L Engine ...................................................................549
Reformulated Gasoline ...............................................549
Materials Added To Fuel ............................................550
Gasoline/Oxygenate Blends ......................................550
Do Not Use E-85 In Non-Flex Fuel Vehicles ............551
CNG And LP Fuel System Modifications ................ 551
MMT In Gasoline .........................................................551
Fuel System Cautions ..................................................551
Carbon Monoxide Warnings......................................552
2020_DT_1500_OM_US.book Page 10
186 GETTING TO KNOW YOUR INSTRUMENT PANEL
Should one or more tires be in the condition mentioned
above, the display will show the indications corresponding
to each tire.
Each tire, including the spare (if provided), should be
checked monthly when cold and inflated to the inflation
pressure recommended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure label, you
should determine the proper tire inflation pressure for those
tires.)
As an added safety feature, your vehicle has been equipped
with a Tire Pressure Monitoring System (TPMS) that illumi-
nates a low tire pressure telltale when one or more of your
tires is significantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the
proper pressure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread
life, and may affect the vehicle’s handling and stopping
ability.
Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain
correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pres
-
sure telltale.
Your vehicle has also been equipped with a TPMS malfunc -
tion indicator to indicate when the system is not operating
properly. The TPMS malfunction indicator is combined with
the low tire pressure telltale. When the system detects a
malfunction, the telltale will flash for approximately one
minute and then remain continuously illuminated. This
sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi -
cator is illuminated, the system may not be able to detect or
signal low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the installation
of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Always check
the TPMS malfunction telltale after replacing one or more
CAUTION!
Do not continue driving with one or more flat tires as
handling may be compromised. Stop the vehicle,
avoiding sharp braking and steering. If a tire puncture
occurs, repair immediately using the dedicated tire
repair kit and contact an authorized dealer as soon as
possible.
2020_DT_1500_OM_US.book Page 186
SAFETY 231
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the “Tire Pressure Monitoring System Warning
Light” will no longer flash, and the "SERVICE TPM
SYSTEM" message will no longer display, and a pressure
value will display in place of the dashes. A system fault can
occur due to any of the following:
• Signal interference due to electronic devices or drivingnext to facilities emitting the same radio frequencies as the
Tire Pressure Monitor (TPM) sensors
• Installing aftermarket window tinting that contains mate -
rials that may block radio wave signals
• Accumulation of snow or ice around the wheels or wheel housings
• Using tire chains on the vehicle
• Using wheels/tires not equipped with TPM sensors
A system fault may occur due to an incorrect TPM sensor loca -
tion condition. When a system fault occurs due to an incorrect
TPM sensor location, the “Tire Pressure Monitoring System
(TPMS) Warning Light” will flash on and off for 75 seconds
and then remain on solid. The system fault will also sound a
chime. In addition, the instrument cluster will display a “Tire
Pressure Temporarily Unavailable” message in place of the
tire pressure display screen. If the ignition switch is cycled, this sequence will repeat, providing the system fault still
exists. If the system fault no longer exists, the “Tire Pressure
Monitoring System Warning Light” will no longer flash and
the tire pressure display screen will be displayed showing the
tire pressure values the correct locations.
Vehicles With Non Matching Full Size Spare Or Compact
Spare
• The non matching full size spare or compact spare tire
does not have a TPM sensor. Therefore, the TPMS will not
monitor the pressure in the non matching full size spare or
compact spare tire.
• If you install the non matching full size spare or compact spare tire in place of a road tire that has a pressure below
the low-pressure warning limit, upon the next ignition
switch cycle, the Tire Pressure Monitoring System (TPMS)
Warning Light and a “LOW TIRE” message will remain
ON and a chime will sound. In addition, the graphic in the
instrument cluster will still display a pressure value in a
different color and an “Inflate to XX” message.
• After driving the vehicle for up to 20 minutes above 15 mph (24 km/h), the Tire Pressure Monitoring System
(TPMS) Warning Light will flash on and off for 75 seconds
and then remain on solid. In addition, the instrument
4
2020_DT_1500_OM_US.book Page 231
Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts and
cracks. Inspect sidewalls for cuts, cracks, and bulges. Check
the wheel bolts for tightness. Check the tires (including
spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight parking for
fuel, coolant, oil, or other fluid leaks. Also, if gasoline fumes
are detected or if fuel, or brake fluid leaks are suspected, the
cause should be located and corrected immediately.
4
2020_DT_1500_OM_US.book Page 289
SAFETY 289
328 STARTING AND OPERATING
To assist with changing a spare tire, the air suspension system
has a feature which allows the automatic leveling to be disabled.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.
NOTE:
If equipped with a touch screen radio all enabling/disabling
of air suspension features must be done through the radio.
Refer to “Uconnect Settings” in “Multimedia” for further
information.
Air Suspension Modes
The Air Suspension system has multiple modes to protect the
system in unique situations:
AERO Mode
To improve aerodynamics, the air suspension system has a
feature which will put the vehicle into AERO height auto-
matically. Refer to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” for further information. NOTE:
This mode is intended to be enabled with engine running.
Tire Jack Mode
To assist with changing a tire, the air suspension system has
a feature which allows the automatic leveling to be disabled.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” or “Uconnect Settings” in “Multi
-
media” if equipped with a touch screen radio for further
information.
NOTE:
This mode is intended to be enabled with engine running.
Transport Mode
For towing your vehicle with four wheels off the road, the air
suspension system has a feature which will put the vehicle
into Entry/Exit height and disable the automatic load
leveling system. Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” or “Uconnect
Settings” in “Multimedia” if equipped with a touch screen
radio for further information.
NOTE:
This mode is intended to be enabled with engine running.
WARNING!
The air suspension system uses a high pressure volume
of air to operate the system. To avoid personal injury or
damage to the system, see your authorized dealer for
service.
2020_DT_1500_OM_US.book Page 328
450 IN CASE OF EMERGENCY
F11–5 Amp TanOutput to Under-hood Power Distribution
Center (UPDC) Run Coil
F12 –25 Amp Clear Mod Audio Amplifier / Active Noise
Cancellation / SW Inverter
F13 –20 Amp Yellow Mod Seat Heater Front (Driver)
F14 –15 Amp Blue Mod Seat Heater Front (Steering Wheel)
F15 ––Spare
F16 ––Spare
F17 –20 Amp Yellow LT Spot Lamp
F18 30 Amp Pink –Motor Sunshade Sunroof
F19 ––Spare
F20 –20 Amp Yellow Comfort Rear Seat Module (CRSM) (Heat Rear
RT)
F21 ––Spare
F22 ––Spare
F23 ––Spare
F24 –15 Amp Blue Mod RF Hub / Mod Ignition / Mod Cluster
F25 40 Amp Green –Mod Integrated Trailer Brake
F26 –15 Amp Blue Mod Cluster CCN / Mod Cyber Security
F27 –5 Amp Tan Mod Cluster CCN / Mod SGW
Cavity
Cartridge Fuse Micro Fuse Description
2020_DT_1500_OM_US.book Page 450
IN CASE OF EMERGENCY 461
6. Lift the spare tire with one hand to give clearance to tiltthe retainer at the end of the cable.
Gaining Access To The Retainer 7. Pull the retainer through the center of the wheel.
Pulling The Retainer Through The Center Of The Wheel
NOTE:
The winch mechanism is designed for use with the extension
tubes only. Use of an air wrench or other power tools is not
recommended and can damage the winch.
6
2020_DT_1500_OM_US.book Page 461