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
GETTING TO KNOW YOUR VEHICLE 77
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 rain and snowfall on the windshield and
automatically activates the wipers for the driver. The feature
is especially useful for road splash or overspray from the
windshield washers of the vehicle ahead. Rotate the end of
the multifunction lever to one of four 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 4 is the most sensitive.
NOTE:
Position 3 should be used for normal rain conditions. Positions 1 and 2 can be used if the driver desires less wiper
sensitivity. Position 4 can be used if the driver desires more
sensitivity. 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
placed in the ON position, 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).
• Transmission In NEUTRAL (N) Position — When the
ignition is ON, and the transmission is in the NEUTRAL
position, the Rain Sensing system will not operate until the
2
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STARTING AND OPERATING 297
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
under which vehicle operations will occur. For the recom -
mended viscosity and quality grades, refer to “Fluids And
Lubricants” in “Technical Specifications”. NOTE:
A new engine may consume some oil during its first few
thousand miles (kilometers) of operation. This should be
considered a normal part of the break-in and not interpreted
as a problem. Please check your oil level with the engine oil
indicator often during the break in period. Add oil as
required.
PARKING BRAKE
Electric Park Brake (EPB)
Your vehicle is equipped with an Electric Park Brake System
(EPB) that offers simple operation, and some additional
features that make the parking brake more convenient and
useful.
The parking brake is primarily intended to prevent the
vehicle from rolling while parked. Before leaving the vehicle,
make sure that the park brake is applied. Also, be certain to
leave the transmission in PARK.
You can engage the park brake in two ways:
• Manually, by applying the park brake switch.
• Automatically, by enabling the Auto Park Brake feature in
the customer programmable features section of the Ucon -
nect settings.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral Oil in
the engine or damage may result.5
2020_DT_1500_OM_US.book Page 297
SERVICING AND MAINTENANCE 513
(Continued)
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission fluid to ensure
optimum transmission performance and life. Use only the
manufacturer’s specified transmission fluid. Refer to “Fluids
And Lubricants” in “Technical Specifications”. It is
important to maintain the transmission fluid at the correct
level using the recommended fluid. No chemical flushes
should be used in any transmission; only the approved lubri-
cant should be used.
WARNING!
• Use only manufacturer's recommended brake fluid. Refer to “Fluids And Lubricants” in “Technical Speci -
fications” for further information. Using the wrong
type of brake fluid can severely damage your brake
system and/or impair its performance. The proper type
of brake fluid for your vehicle is also identified on the
original factory installed hydraulic master cylinder
reservoir.
• To avoid contamination from foreign matter or mois -
ture, use only new brake fluid or fluid that has been in
a tightly closed container. Keep the master cylinder
reservoir cap secured at all times. Brake fluid in a open
container absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil unexpect -
edly during hard or prolonged braking, resulting in
sudden brake failure. This could result in a collision.
• Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts, causing the
brake fluid to catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
• Do not allow petroleum based fluid to contaminate thebrake fluid. Brake seal components could be damaged,
causing partial or complete brake failure. This could
result in a collision.
CAUTION!
Using a transmission fluid other than the manufacturer’s
recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder. Refer to “Fluids And Lubricants” in “Technical
Specifications” for fluid specifications.
WARNING! (Continued)
7
2020_DT_1500_OM_US.book Page 513
514 SERVICING AND MAINTENANCE
Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis-
sion Fluid (ATF) is an engineered product and its perfor -
mance may be impaired by supplemental additives.
Therefore, do not add any fluid additives to the transmis -
sion. Avoid using transmission sealers as they may
adversely affect seals.
Fluid Level Check
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required, therefore the transmis -
sion has no dipstick. An authorized dealer can check your
transmission fluid level using special service tools. If you notice fluid leakage or transmission malfunction, visit
an authorized dealer immediately to have the transmission
fluid level checked. Operating the vehicle with an improper
fluid level can cause severe transmission damage.
Fluid And Filter Changes
Under normal operating conditions, the fluid installed at the
factory will provide satisfactory lubrication for the life of the
vehicle.
Routine fluid and filter changes are not required. However,
change the fluid and filter if the fluid becomes contaminated
(with water, etc.), or if the transmission is disassembled for
any reason.
CAUTION!
Do not use chemical flushes in your transmission as the
chemicals can damage your transmission components.
Such damage is not covered by the New Vehicle Limited
Warranty.
CAUTION!
If a transmission fluid leak occurs, visit an authorized
dealer immediately. Severe transmission damage may
occur. An authorized dealer has the proper tools to adjust
the fluid level accurately.
2020_DT_1500_OM_US.book Page 514
556 TECHNICAL SPECIFICATIONS
Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission Use only Mopar ZF 8&9 Speed ATF Automatic Transmission
Fluid, or equivalent. Failure to use the correct fluid may
affect the function or performance of your transmission.
Transfer Case – 48-11 Active On-Demand 2–speed Transfer
Case (With 4WD AUTO) We recommend you use Mobil Fluid LT.
Transfer Case – 48-12 Part Time 2–Speed Transfer Case
(Without 4WD AUTO) We recommend you use Shell Spirax S2 ATF A389
Front Axle We recommend you use Mopar GL-5 Synthetic Axle
Lubricant SAE 75W-85.
Rear Axle (3.21/3.55) We recommend you use Mopar Synthetic Gear Lubricant
SAE 75W-90 (MS-A0160). Limited-Slip Rear Axles require
the addition of 5 oz. (148 ml) Mopar Limited Slip Additive
(MS-10111).
Rear Axle (3.92) We recommend you use Mopar Synthetic Gear Lubricant
SAE 75W-140 (MS-8985). Limited-Slip Rear Axles require the
addition of 5 oz. (148 ml) Mopar Limited Slip Additive
(MS-10111).
Max Tow Rear Axle (3.92) We Recommend You Use Dana SAE 80W90 Axle Lubricant.
Brake Master Cylinder We recommend you use Mopar DOT 3.
2020_DT_1500_OM_US.book Page 556
658
Audio Systems (Radio) .......................................................... 557
Auto Down Power Windows .................................................. 95Auto Unlock, Doors ................................................................ 308
Automatic Door Locks ............................................................. 41
Automatic Headlights .............................................................. 70
Automatic High Beams ............................................................ 68
Automatic Tailgate Release ................................................... 107
Automatic Temperature Control (ATC) ................................ 91
Automatic Transmission ................................................ 304, 514 Adding Fluid ....................................................................... 514Fluid And Filter Change .................................................... 514
Fluid Change........................................................................ 514
Fluid Level Check ....................................................... 513, 514
Fluid Type .................................................................... 513, 556
Special Additives................................................................. 514
Automatic Transmission Limp Home Mode ...................... 308
Auxiliary Driving Systems .................................................... 211
Axle Fluid......................................................................... 515, 556
Axle Lubrication...................................................................... 515 B
Back-Up .................................................................................... 396
Back-Up Camera ..................................................................... 396
Battery............................................................................... 181, 491 Charging System Light....................................................... 181
Keyless Key Fob Replacement ............................................ 21
Battery Saver Feature ............................................................... 73 Belts, Seat ..................................................................................286
Blind Spot Monitoring ............................................................ 211
Body Builders Guide ................................................................14
Body Mechanism Lubrication ...............................................502
B-Pillar Location ......................................................................521
Brake Assist System ................................................................200
Brake Control System .............................................................199
Brake Fluid .......................................................................512, 556
Brake System....................................................................512, 546 Fluid Check ..........................................................................512
Master Cylinder ...................................................................512Parking ..................................................................................297
Warning Light......................................................................179
Brake/Transmission Interlock ..............................................304
Bulb Replacement ...................................................................436
Bulbs, Light ......................................................................289, 436 C
Camera...................................................................................... 396
Camera, Rear....................................................................396, 398
Camper .....................................................................................146
Capacities, Fuel........................................................................553
Caps, Filler Oil (Engine) ..................................................................487, 493
Radiator (Coolant Pressure)...............................................509
Car Washes ..............................................................................540
Carbon Monoxide Warning ...........................................286, 552
2020_DT_1500_OM_US.book Page 658
669
Inflation Pressure ................................................................ 526
Life Of Tires ......................................................................... 529
Load Capacity .............................................................. 521, 522
Pressure Monitoring System (TPMS) ....................... 185, 227
Quality Grading .................................................................. 538
Radial .................................................................................... 527Replacement......................................................................... 530
Rotation ................................................................................ 537
Safety............................................................................. 516, 525
Sizes....................................................................................... 517Snow Tires ............................................................................ 532
Spare Tires ............................................................ 532, 533, 534
Spinning................................................................................ 528
Trailer Towing ..................................................................... 415
Tread Wear Indicators ........................................................ 529
Wheel Nut Torque .............................................................. 546
To Open Hood ......................................................................... 105
Tongue Weight/Trailer Weight ............................................ 413
Tonneau Cover ................................................................ 150, 540
Tonneau Cover Cleaning ....................................................... 540
Towing.............................................................................. 407, 478 Disabled Vehicle.................................................................. 478
Guide..................................................................................... 413
Recreational.......................................................................... 422
Weight................................................................................... 413
Towing Behind A Motorhome .............................................. 422 Traction .....................................................................................427
Traction Control ......................................................................210
Traction Control Switch .........................................................210
Trailer Sway Control (TSC) ................................................... 210
Trailer Towing .........................................................................407 Cooling System Tips ........................................................... 421Hitches ..................................................................................411
Minimum Requirements ....................................................413
Mirrors ....................................................................................64
Tips ........................................................................................420Trailer And Tongue Weight...............................................413
Wiring ...................................................................................419
Trailer Towing Guide .............................................................413
Trailer Weight ..........................................................................413
Transfer Case ...........................................................................515 Electronically Shifted ..................................................311, 314
Fluid ...................................................................................... 556
Transmission ............................................................................304 Automatic .....................................................................304, 513
Fluid ...................................................................................... 556
Maintenance .........................................................................513
Shifting ..................................................................................302
Transporting Pets .................................................................... 285
Tread Wear Indicators ............................................................ 529
Turn Signals ....................................................... 71, 193, 438, 441
11
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