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4. Disconnect the opposite end of the positive(+)jumper
cable from the positive (+)post of the vehicle with the
discharged battery.
If frequent jump-starting is required to start your vehicle
you should have the battery and charging system in-
spected at your authorized dealer.
CAUTION!
Accessories plugged into the vehicle power outlets
draw power from the vehicle’s battery, even when not
in use (i.e., cellular devices, etc.). Eventually, if
plugged in long enough without engine operation,
the vehicle’s battery will discharge sufficiently to
degrade battery life and/or prevent the engine from
starting.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand, or snow, it
can often be moved using a rocking motion. Turn the
steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE
and REVERSE (with automatic transmission) or 2nd gear
and REVERSE (with manual transmission), while gently
pressing the accelerator. Use the least amount of accel-
erator pedal pressure that will maintain the rocking
motion, without spinning the wheels or racing the en-
gine.
NOTE: For trucks equipped with 8-speed automatic
transmission: Shifts between DRIVE and REVERSE can
only be achieved at wheel speeds of 5 mph (8 km/h) or
less. Whenever the transmission remains in NEUTRAL
for more than two seconds, you must push the brake
pedal to engage DRIVE or REVERSE.
6
WHAT TO DO IN EMERGENCIES 775
Page 778 of 919

CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of clutch or transmission failure during
prolonged efforts to free a stuck vehicle.
NOTE: Push the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode,
before rocking the vehicle. Refer to “Electronic Brake
Control” in “Starting And Operating” for further infor-
mation. Once the vehicle has been freed, push the ESC
Off switch again to restore ESC Onmode.
CAUTION!
•When “rocking” a stuck vehicle by shifting be-
tween DRIVE/2nd gear and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drive-
train damage may result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no trans-
mission shifting occurring).
WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause damage, or
even failure, of the axle and tires. A tire could
(Continued)
776 WHAT TO DO IN EMERGENCIES
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GEAR SELECTOR OVERRIDE — 6-SPEED
TRANSMISSION
If a malfunction occurs and the gear selector cannot be
moved out of the PARK position, you can use one of the
following procedures to temporarily move the gear se-
lector:
Column Shifter — If Equipped
1. Turn the engine off.
2. Firmly apply the parking brake.
3. Tilt the steering wheel to the full up position.
4. Push and maintain firm pressure on the brake pedal.
5. Insert a screwdriver or similar tool, into the access port(ringed circle) on the bottom of the steering column
and push and hold the override release lever up. 6. Move the gear selector to the NEUTRAL position.
7. The vehicle may then be started in NEUTRAL.
Gear Selector Override Access Port
778 WHAT TO DO IN EMERGENCIES
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Center Console Shifter — If Equipped
1. Turn the engine off.
2. Firmly apply the parking brake.
3. Using a small screwdriver or similar tool, remove thegear selector override access cover (located to the right
of the gear selector).
4. Push and maintain firm pressure on the brake pedal.
5. Insert the screwdriver or similar tool into the access hole, and push and hold the override release lever
down.
6. Move the gear selector to the NEUTRAL position.
7. The vehicle may then be started in NEUTRAL.
8. Reinstall the gear selector override access cover.
Gear Selector Override Access Cover
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WHAT TO DO IN EMERGENCIES 779
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TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service. If the trans-
mission and drivetrain are operable, disabled vehicles
may also be towed as described under “Recreational
Towing” in the “Starting And Operating” section.NOTE:
Vehicles equipped with air suspension must be
placed in Transport mode, before tying them down (from
the body) on a trailer or flatbed truck. Refer to Air
Suspension inStarting And Operating for more infor-
mation. If the vehicle cannot be placed in Transport mode
(for example, engine will not run), tie-downs must be
fastened to the axles (not to the body). Failure to follow
these instructions may cause fault codes to be set and/or
cause loss of proper tie-down tension.
782 WHAT TO DO IN EMERGENCIES
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and the rear wheels on a towing dolly, or (when using a
suitable steering wheel stabilizer to hold the front wheels
in the straight position) with the rear wheels raised and
the front wheels on the ground.
CAUTION!
Towing this vehicle in violation of the above require-
ments can cause severe engine and/or transmission
damage. Damage from improper towing is not cov-
ered under the New Vehicle Limited Warranty.
Four-Wheel Drive Models
The manufacturer recommends towing with all wheels
OFFthe ground. Acceptable methods are to tow the
vehicle on a flatbed or with one end of vehicle raised and
the opposite end on a towing dolly.
If flatbed equipment is not available, and the transfer
case is operable, the vehicle may be towed (in the forward direction, with
ALLwheels on the ground), IF
the transfer case is in NEUTRAL (N) and the transmis-
sion is in PARK(for automatic transmissions) or in gear
(NOT in NEUTRAL, for manual transmissions). Refer to
“Recreational Towing” in “Starting And Operating” for
further information and detailed instructions.
CAUTION!
• Front or rear wheel lifts must not be used. Internal
damage to the transmission or transfer case will
occur if a front or rear wheel lift is used when
towing.
• Towing this vehicle in violation of the above re-
quirements can cause severe transmission and/or
transfer case damage. Damage from improper tow-
ing is not covered under the New Vehicle Limited
Warranty.6
WHAT TO DO IN EMERGENCIES 785
Page 789 of 919
MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 3.6L ..........790
ENGINE COMPARTMENT — 5.7L ..........791
ENGINE COMPARTMENT — 6.4L ..........792
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .793
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ....................... .793
▫ Loose Fuel Filler Cap Message ............794
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .795
REPLACEMENT PARTS ..................796
DEALER SERVICE ..................... .797
MAINTENANCE PROCEDURES ...........797
▫ Engine Oil ......................... .798
▫ Engine Oil Filter ..................... .802
▫ Engine Air Cleaner Filter ................802
▫ Accessory Drive Belt Inspection ...........806
▫ Maintenance-Free Battery ...............808
▫ Air Conditioner Maintenance .............809
▫ Front Driveshaft Lubrication — 2500/3500
(Four-Wheel Drive Models Only) ..........810
7
Page 791 of 919
▫Side Marker Lamps (Dual Rear Wheels) — If
Equipped .......................... .863
FLUID CAPACITIES ....................864
FLUIDS, LUBRICANTS, AND GENUINE
PARTS ............................. .866▫
Engine ............................ .866
▫ Chassis ........................... .870
7
MAINTAINING YOUR VEHICLE 789