
332IN CASE OF EMERGENCY
Dual Rear Wheels
Slots in the wheels will assist in properly orienting
the inner and outer wheels. Align these slots when
assembling the wheels for best access to the tire
valve on the inner wheel. The tires of both dual
wheels must be completely off the ground when
tightening to ensure wheel centering and
maximum wheel clamping.
Dual wheel models require a special heavy-duty lug
nut tightening adapter (included with the vehicle)
to correctly tighten the lug nuts. Also, when it is
necessary to remove and install dual rear wheels,
use a proper vehicle lifting device.
NOTE:When installing a spare tire (if equipped) as part of
a dual rear wheel end combination, the tire
diameter of the two individual tires must be
compared. If there is a significant difference, the
larger tire should be installed in a front location.
The correct direction of rotation for dual tire instal -
lations must also be observed.
It is recommended that wheel stud nuts be kept
torqued to specifications at all times. Torque wheel
stud nuts to specifications at each lubrication
interval Ú page 411.
Wheel Nuts
All wheel nuts should be tightened occasionally to
eliminate the possibility of wheel studs being
sheared or the bolt holes in the wheels becoming elongated. This is especially important during the
first few hundred miles/kilometers of operation to
allow the wheel nuts to become properly set. All
wheel nuts should first be firmly seated against the
wheel. The wheel nuts should then be tightened to
recommended torque. Tighten the wheel nuts to
final torque in increments. Progress around the
bolt circle, tightening the wheel nut opposite to the
wheel nut just previously tightened until final
torque is achieved Ú
page 411.
TO STOW THE FLAT OR SPARE —
I
F EQUIPPED
Refer to Upfitters Body Builder’s Guide for
information on stowing your spare tire (if
equipped).
HUB CAPS/WHEEL COVERS —
I
F EQUIPPED
The hub caps must be removed before raising the
vehicle off the ground. For 3500 Single Rear-Wheel (SRW) models, use
the flat end of the lug wrench to hook and pull off
the hub cap. Find the opening in the hub cap,
insert the lug wrench, and pull off the cap. If you
need to pry against the wheel, protect the wheel
surface.
Lug Wrench Insertion Location — Hub Cap
On 3500 models with Dual Rear-Wheels (DRW),
you must first remove the hub caps—use the
procedure noted for the single rear wheel. For the
wheel covers (wheel skins), insert the flat end of
the lug wrench between the outer edge of the
wheel cover and the wheel. Pry against the wheel
to remove the wheel cover. Repeat this procedure
around the wheel until the cover pops off.
CAUTION!
Use extreme caution when removing the front
and rear wheel covers. Damage can occur to the
center cap and/or the wheel if screwdriver type
tools are used. A pulling motion, not a pry off
motion, is recommended to remove the caps.
23_DPF_OM_EN_USC_t.book Page 332

IN CASE OF EMERGENCY339
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled vehicle using a commercial towing service. If the transmission and drivetrain are operable, disabled
vehicles may also be towed as described Ú page 195.
NOTE:When towing your vehicle, always follow applicable state and provincial laws. Contact state and provincial Highway Safety offices for additional details.Towing Condition
Wheels OFF The Ground 2WD Models4WD Models
Flat Tow NONEIf transmission is operable:
• Transmission in NEUTRAL
• 30 mph (48 km/h) max speed
• 15 miles (24 km) max distance (six
speed transmission)
• 30 miles (48 km) max distance
(eight speed transmission) Detailed instructions
Ú page 195
• Auto Transmission in PARK
• Transfer Case in NEUTRAL
• Tow in forward direction
Wheel Lift Or Dolly Tow Front
NOT ALLOWED
Rear OKNOT ALLOWED
Flatbed ALLBEST METHODBEST METHOD7
23_DPF_OM_EN_USC_t.book Page 339

340IN CASE OF EMERGENCY
(Continued)
Proper towing or lifting equipment is required to
prevent damage to your vehicle. Use only tow bars
and other equipment designed for this purpose,
following equipment manufacturer’s instructions.
Use of safety chains is mandatory. Attach a tow bar
or other towing device to main structural members
of the vehicle, not to fascia/bumpers or associated
brackets. State and local laws regarding vehicles
under tow must be observed.
If you must use the accessories (wipers,
defrosters, etc.) while being towed, the ignition
must be in the ON/RUN mode, not the ACC mode.
If the key fob is unavailable or the vehicle's battery
is discharged, Ú
page 337.
TWO-WHEEL DRIVE MODELS
FCA US LLC recommends towing your vehicle with
all four wheels OFF the ground using a flatbed.
If flatbed equipment is not available, and the
transmission is operable, the vehicle may be towed
(with the rear wheels on the ground) under the
following conditions:
The transmission must be in NEUTRAL
Ú page 337.
The towing speed must not exceed 30 mph
(48 km/h).
The towing distance must not exceed 15 miles
(24 km) for 6–speed transmission, or 30 miles
(48 km) for 8–speed transmission.
If the transmission is not operable, or the vehicle
must be towed faster than 30 mph (48 km/h) or
farther than 15 miles (24 km) for 6–speed
transmission, or 30 miles (48 km) for 8–speed
transmission, tow with the rear wheels OFF the
ground. Acceptable methods are to tow the vehicle
on a flatbed, or with the front wheels raised 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 rear wheels
raised and the front wheels ON the ground.
FOUR-WHEEL DRIVE MODELS
FCA US LLC recommends towing with all wheels
OFF the 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 ALL wheels on
the ground), IF the transfer case is in NEUTRAL and
the transmission is in PARK Ú page 195.
CAUTION!
Do not use sling type equipment when towing.
Vehicle damage may occur.
When securing the vehicle to a flatbed truck,
do not attach to front or rear suspension
components. Damage to your vehicle may
result from improper towing.
CAUTION!
Towing this vehicle in violation of the approved
requirements can cause severe engine and/or
transmission damage. Damage from improper
towing is not covered under the New Vehicle
Limited Warranty.
CAUTION!
Front or rear wheel lifts must not be used (if
the remaining wheels are on the ground).
Internal damage to the transmission or
transfer case will occur if a front or rear wheel
lift is used when towing.
23_DPF_OM_EN_USC_t.book Page 340

IN CASE OF EMERGENCY341
EMERGENCY TOW HOOKS —
I
F EQUIPPED
Your vehicle may be equipped with emergency tow
hooks.
Emergency Tow Hooks
NOTE:For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle.ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS)
This vehicle is equipped with an Enhanced
Accident Response System.
This feature is a communication network that
takes effect in the event of an impact Úpage 302.
EVENT DATA RECORDER (EDR)
This vehicle is equipped with an event data
recorder (EDR). The main purpose of an EDR is to
record data that will assist in understanding how a
vehicle’s systems performed under certain crash
or near crash-like situations, such as an air bag
deployment or hitting a road obstacle Úpage 304.
Towing this vehicle in violation of the
approved requirements can cause severe
transmission and/or transfer case damage.
Damage from improper towing is not covered
under the New Vehicle Limited Warranty.
CAUTION!
WARNING!
Do not use a chain for freeing a stuck vehicle.
Chains may break, causing serious injury or
death.
Stand clear of vehicles when pulling with tow
hooks. Tow straps may become disengaged,
causing serious injury.
CAUTION!
Tow hooks are for emergency use only, to rescue
a vehicle stranded off-road. Do not use tow
hooks for tow truck hookup or highway towing.
You could damage your vehicle.
7
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342
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
Your vehicle is equipped with an engine oil change
indicator system. This system will alert you when it
is time to change your engine oil by displaying the
words “Oil Change Due” in your instrument cluster
display. The engine oil change indicator system is
duty cycle based, which means the engine oil
change interval may fluctuate depending on your
personal driving style. Failure to change the engine
oil per the maintenance schedule can result in
internal engine damage.
An authorized dealer will reset the oil change
indicator message after completing the scheduled
oil change. If a scheduled oil change is performed
by someone other than an authorized dealer, the
message can be reset by referring to the steps
described under instrument cluster display
Úpage 89. For Gasoline Engines, under no circumstances
should oil change intervals exceed 8,000 miles
(13,000 km), 12 months or 350 hours of engine
run time, whichever comes first. The 350 hours of
engine run or idle time is generally only a concern
for fleet customers.
For Diesel Engines, under no circumstances
should oil change intervals exceed 15,000 miles
(24,000 km) or 12 months, whichever comes first
or sooner if prompted by the oil change indicator
system.
NOTE:
It is recommended that every 3,000 miles
(4,800 km), check the engine oil level at least
30 minutes after a fully warmed engine is shut
off. Checking the oil level while the vehicle is on
level ground will improve the accuracy of the oil
level reading. Add oil only when the level is at or
below the ADD or MIN mark.
Severe service (high ambient temperature,
short trips, heavy loading, trailer towing,
off-road, or law enforcement use) may reduce
oil change intervals.
For Diesel Engines, configured with optional B20
capability are operated with greater than 5% levels
of biodiesel, the oil change interval must not
exceed 12,500 miles (20,000 km) or 400 hours,
whichever comes first under any circumstances.
See the Fuel Requirements section for more
information regarding operation with biodiesel
blend (B6-B20) fuel meeting ASTM specification
D-7467.
Perform Service Indicator — Diesel Engine
Your vehicle will require emissions maintenance at
a set interval. To help remind you when this
maintenance is due, the instrument cluster will
display “Perform Service”. When the “Perform
Service” message is displayed on the instrument
cluster it is necessary to have the emissions
maintenance performed. Emissions maintenance
may include replacing the Closed Crankcase
Ventilation (CCV) filter element. The procedure for
clearing and resetting the “Perform Service”
indicator message is located in the appropriate
Service Information.
CAUTION!
Failure to perform the required maintenance
items may result in damage to the vehicle.
23_DPF_OM_EN_USC_t.book Page 342

344SERVICING AND MAINTENANCE
MAINTENANCE PLAN — GASOLINE ENGINE
Mileage Or Time Passed
(Whichever Comes First)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Change engine oil. Under no circumstances should oil change intervals exceed 8,000 miles (13,000 km), 12 months or 350 hours of
engine run time, whichever comes first.
Additional Inspections
Rotate the tires. X X X X X X X X X X X X X X
Inspect the CV/Universal joints. X X X X X X X X X X X X X X
Inspect front suspension, tie rod ends,
and replace if necessary. X
X X XX XX
Inspect the front and rear axle surfaces.
If gear oil leakage is suspected, check
the fluid level. If using your vehicle for
police, taxi, fleet, off-road or frequent
trailer towing, change axle fluid. X
X X XX XX
Inspect the brake linings, parking brake
function. X
X X XX XX
Additional Maintenance
Replace the cabin air filter. To be replaced every 12,000 miles (19,000 km).
Replace the engine air cleaner filter. XX XXX
23_DPF_OM_EN_USC_t.book Page 344

SERVICING AND MAINTENANCE345
Replace spark plugs.
1X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first. X
X
Change the automatic transmission fluid
(AS66RCTransmission Only). X
X X
Inspect the transfer case fluid, change for
any of the following: police, taxi, fleet, or
frequent trailer towing. X
X
Change the transfer case fluid. X
Inspect and replace PCV valve if necessary.
X
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage Or Time Passed
(Whichever Comes First)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could
cause an accident.
8
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348SERVICING AND MAINTENANCE
Inspect the front and rear axle
surfaces. If gear oil leakage is
suspected, check the fluid level. If
using your vehicle for police, taxi,
fleet, off-road or frequent trailer
towing change the axle fluid. X
XXXXX
Inspect the transfer case fluid
(4x4), change for any of the
following: police, taxi, fleet, or
frequent trailer towing. X
XXX X
Change the transfer case fluid
(4x4). X
X
Change automatic transmission
fluid (AS69RC transmission only). X
XXX
Change automatic transmission
fluid and sump filter (AS69RC
transmission only). X
X
Change automatic transmission
fluid and filter(s). X
Mileage Or Time Passed
(Whichever Comes First):
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000
23_DPF_OM_EN_USC_t.book Page 348