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CAUTION!
Reduced tire pressure increases the risk of tire damage
and may cause tire unseating with total loss of air
pressure. To reduce the risk of tire unseating, while at
a reduced tire pressure, drive at slower speeds and
avoid sharp turns or abrupt maneuvers.
Vehicle Recovery
If you drive off-road, you may encounter a situation where
you will need to recover your vehicle. Vehicle recovery
should always be given consideration before attempting a
questionable obstacle. You should never go off-road driv-
ing without the ability to recover your vehicle from a
situation. Having another vehicle with you usually works
best for most situations. The first thing to do is assess the
situation. Why are you stuck? Are you hung up on
something? Would it be easier to go forward or to go
backward? Can you still move the vehicle? Is there an
anchor point to winch to? Are you alone or do you have
another vehicle to help? Is there high risk of vehicle
damage during the recovery process? Answering these
questions will help you determine the best method of
recovery. If you can still move the vehicle slightly and the
only issue is slick ground, then rock cycling your vehiclewould be the first choice. If you have ample room, an
additional vehicle and there is low risk of vehicle impinge-
ment on the surroundings, then using a tow strap to the
vehicle tow hooks would be fast and easy. If the vehicle is
severely hung up or in a situation where great care needs
to be taken during the recovery, then nothing can do the job
better than a winch. If you are severely hung up on
something you should jack the vehicle up and stack
something under the wheels to allow the vehicle to roll off
the object without causing further damage. This should be
tried before attempting any recovery method.
CAUTION!
Pulling the vehicle off an obstacle, without first clear-
ing the object, may result in additional underbody
damage.
• Rock Cycling Your Vehicle – Rock cycling your vehicle
is one of the easiest, fastest and most commonly used
methods. This simply involves shifting your vehicle
from DRIVE to REVERSE, while applying throttle after
each shift. During this process, for additional traction,
try turning your steering wheel quickly left and right no
more than a ¼ turn. If you are stuck in mud, sand, or
snow try spinning your tires during this process to clean
5
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Recommended Distribution Hitch Adjustment
Towing With 1500 Air Suspension
1. Set air suspension to normal ride height. No action isrequired if already in normal ride height.
NOTE: The vehicle must remain in the engine run position
with all doors closed while attaching a trailer for proper
leveling of the air suspension system.
2. Position the truck to be ready to connect to the trailer (do not connect the trailer). 3. Under the instrument cluster or touch screen radio
settings, enable jack mode. Jack mode will be canceled
and procedure must be restarted if the vehicle is driven
at speeds above 5mph (8 kmh).
4. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.
5. Attach the trailer to the vehicle without the weight distribution bars connected.
6. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.
Improper Adjustment Of Weight-Distributing Hitch
(Incorrect)
Measuring Height (H)
5
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7. Install and adjust the tension in the weight distributingbars per the manufacturers’ recommendations so that
the height of the front fender is approximately (H2-H1)/
3+H1 (about 1/3 the difference between H2 and H1
above normal ride height [H1]).
8. Use the instrument cluster or touch screen radio settings and switch off tire jack mode. Make sure the truck
returns to normal ride height. Preform a visual inspec-
tion of the trailer and weight distributing hitch to
confirm manufacturers’ recommendations have been
met.
9. The truck can now be driven.
Measurement Example Example 1500 Height
(mm)
H1 925
H2 946
H2-H1 21
(H2-H1)/3 7
(H2-H1)/3 + H1 932
NOTE: For all towing conditions, we recommend towing
with tow haul mode engaged. Towing With 2500/3500 Air Suspension
1. Position the truck to be ready to connect to the trailer
(do not connect the trailer).
NOTE: Normal Ride Height (NRH) or Alternate Trailer
Height (ATH) can be used. The vehicle must remain in the
engine running position while attaching a trailer for proper
leveling of the air suspension system. It may not be
possible to enter Alternate Trailer Height (ATH) while
lightly loaded.
2. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.
3. Attach the trailer to the vehicle without the weight distribution bars connected.
4. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.
5. Install and adjust the tension in the weight distributing bars per the manufacturers’ recommendations so that
the height of the front fender is approximately (H2-H1)/
2+H1 (about 1/2 the difference between H2 and H1
above normal ride height [H1]).
556 STARTING AND OPERATING
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WHAT TO DO IN EMERGENCIES
CONTENTS
HAZARD WARNING FLASHERS ............580
IF YOUR ENGINE OVERHEATS .............580
WHEEL AND TIRE TORQUE
SPECIFICATIONS ...................... .581
▫ Torque Specifications ....................581
JACKING AND TIRE CHANGING ............583
▫ Jacking And Tire Changing
1500 Series Trucks ..................... .583
▫ Jacking And Tire Changing
2500 And 3500 Series Trucks ...............600
HOISTING ........................... .618
JUMP-STARTING PROCEDURES ............618
▫ Preparations For Jump-Start ...............618
▫ Jump-Starting Procedure ..................620
FREEING A STUCK VEHICLE ..............621
EMERGENCY TOW HOOKS — IF EQUIPPED . . . .623
GEAR SELECTOR OVERRIDE — 6-SPEED
TRANSMISSION ....................... .623
▫ Column Shifter — If Equipped .............623
▫ Center Console Shifter — If Equipped ........624
MANUAL PARK RELEASE — 8 SPEED
TRANSMISSION ....................... .625
TOWING A DISABLED VEHICLE ............626
▫ Two-Wheel Drive Models .................628
▫ Four-Wheel Drive Models .................629
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .............................. .630
EVENT DATA RECORDER (EDR) ............630
6
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Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
After 25 miles (40 km), check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated against
the wheel.WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts fully until the vehicle has been
lowered. Failure to follow this warning may result in
personal injury.
JACKING AND TIRE CHANGING
Jacking And Tire Changing 1500 Series Trucks
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
(Continued)
Four And Five Lug Nuts/Bolts Torque Pattern
6
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WARNING!(Continued)
•Never start or run the engine while the vehicle is on
a jack.
• The jack is designed to be used as a tool for changing
tires only. The jack should not be used to lift the
vehicle for service purposes. The vehicle should be
jacked on a firm level surface only. Avoid ice or
slippery areas.
NOTE: If your vehicle is equipped with an air suspension
system, there is a feature which allows the automatic
leveling to be disabled to assist with changing a tire.
If your vehicle is equipped with a touchscreen, this feature
can be activated through the Uconnect system. Refer to
“Uconnect Settings” in “Understanding Your Instrument
Panel” for further information.
If your vehicle is not equipped with a touchscreen, this
feature can be activated through the instrument cluster
display. Refer to “Instrument Cluster Display” in “Under-
standing Your Instrument Panel” for further information.
Jack Location
The jack and jack tools are stored under the front passenger
seat.
Removal Of Jack And Tools (1500 Series)
To access the jack and jack tools, you must remove the
plastic access cover located on the side of the front passen-
ger ’s seat. To remove the cover, pull the front part of the
cover (closest to the front of the seat) toward you to release
a locking tab. Once the front of the cover is loose, slide the
cover toward the front of the seat until it is free from the
seat frame.
Jack Access Cover
584 WHAT TO DO IN EMERGENCIES
Page 587 of 734
Remove the jack and tools by turning the wing bolt
counterclockwise, remove the wing bolt and then slide the
assembly out from under the seat.Release the tool bag straps from the jack and remove tools
from bag.
Jack And Tools (1500 Series)
Jack And Tool Bag
6
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Assembled For Jack OperationWARNING!
After using the jack and tools, always reinstall them in
the original carrier and location. While driving you
may experience abrupt stopping, rapid acceleration or
sharp turns. A loose jack, tools, bracket or other objects
in the vehicle may move around with force, resulting
in serious injury.
Assembled For Jack Operation
1 — Extension With Jack Hook 4 — Extension 4
2 — Extension 2 5 — Wheel Wrench
3 — Extension 3
6
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