IN CASE OF EMERGENCY335
When you must leave the vehicle to seek
assistance, the Hazard Warning Flashers will
continue to operate even though the ignition is
placed in the OFF position.
NOTE:
With extended use the Hazard Warning
Flashers may wear down your battery.
ASSIST AND SOS SYSTEM — IF EQUIPPED
NOTE:
Depending on the vehicles trim level, the over -
head console may vary.
Assist And SOS Buttons Assist And SOS Buttons
If equipped, the overhead console contains an
ASSIST and a SOS button. NOTE:
Your vehicle may be transmitting data as
authorized by the subscriber Ú
page 449.
The SOS and ASSIST buttons will only func -
tion if you are connected to an operable LTE
(voice/data) or 4G (data) network, which
comes as a built in function. Other Uconnect
services will only be operable if your SiriusXM
Guardian™ service is active and you are
connected to an operable LTE (voice/data) or
4G (data) network.
ASSIST Call
The ASSIST Button is used to automatically
connect you to any one of the following support
centers:
Roadside Assistance – If you get a flat tire, or
need a tow, just push the ASSIST button and
you’ll be connected to someone who can help.
Roadside Assistance will know what vehicle
you’re driving and its location. Additional fees
may apply for roadside assistance.
1 — ASSIST Button
2 — SOS Button
1 — ASSIST Button
2 — SOS Button
WARNING!
ALWAYS obey traffic laws and pay attention to the
road. ALWAYS drive safely with your hands on the
steering wheel. You have full responsibility and
assume all risks related to the use of the features
and applications in this vehicle. Only use the
features and applications when it is safe to do so.
Failure to do so may result in an accident
involving serious injury or death.
7
21_DPF_OM_EN_USC_t.book Page 335
340IN CASE OF EMERGENCY
(Continued)
6. Block both the front and rear of the wheel diagonally opposite the jacking position.
For example, if the driver’s front wheel is
being changed, block the passenger’s rear
wheel.
Wheel Blocked
NOTE:
Passengers should not remain in the vehicle
when the vehicle is being jacked.JACKING INSTRUCTIONS 4500 AND
5500 S
ERIES
Jack Warning Label
WARNING!
Carefully follow these tire changing warnings
to help prevent personal injury or damage to
your vehicle:
Always park on a firm, level surface as far
from the edge of the roadway as possible
before raising the vehicle.
Turn on the Hazard Warning Flashers.
Apply the parking brake firmly and set the
transmission in PARK.
Block the wheel diagonally opposite the
wheel to be raised.
Never start or run the engine with the
vehicle on a jack.
Do not let anyone sit in the vehicle when it
is on a jack.
Do not get under the vehicle when it 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.
Only use the jack in the positions indicated
and for lifting this vehicle during a tire
change.
If working on or near a roadway, be
extremely careful of motor traffic.
To assure that spare tires, flat or inflated,
are securely stowed, spares must be
stowed with the valve stem facing the
ground.
WARNING! (Continued)
21_DPF_OM_EN_USC_t.book Page 340
IN CASE OF EMERGENCY341
1. If equipped, remove the spare wheel, jack,
and tools from storage.
2. Using the lug wrench, loosen, but do not remove, the lug nuts by turning them
counterclockwise one turn while the wheel
is still on the ground.
3. When changing the front wheel, assemble the jack driver to the jack and connect the
jack driver to the extension tube. Place the
jack under the axle as close to the tire as
possible with the jack driver extending to
the front. Connect the extension tubes and
lug wrench.
Front Jacking Locations
When changing a rear wheel, assemble the
jack driver to the jack and connect the jack
driver to the extension tubes. Securely
place the jack under the sway bar bracket
(unless both tires are flat on one side, then
place jack under shock bracket) facing for -
ward in vehicle. Connect the extension
tubes and lug wrench.
Rear Jacking Location
Before raising the wheel off the ground,
make sure that the jack will not damage
surrounding truck parts and adjust the jack
position as required.
NOTE:
If the jack will not lower by turning the dial
(thumbwheel) by hand, it may be necessary to
use the jack driver in order to lower the jack.
4. By rotating the lug wrench clockwise, raise the vehicle until the wheel just clears the
surface.
CAUTION!
Do not attempt to raise the vehicle by jacking
on locations other than those indicated in the
Jacking Instructions for this vehicle.
7
21_DPF_OM_EN_USC_t.book Page 341
342IN CASE OF EMERGENCY
5. Remove the lug nuts and pull the wheel off.
Install the spare wheel and lug nuts with the
cone shaped end of the nuts toward the
wheel on Single Rear-Wheel (SRW) models.
On Dual Rear-Wheel models (DRW) the lug
nuts are a two-piece assembly with a flat
face. Lightly tighten the nuts. To avoid risk
of forcing the vehicle off the jack, do not
fully tighten the nuts until the vehicle has
been lowered.
6. Using the lug wrench, finish tightening the nuts using a crisscross pattern
Úpage 432. If in doubt about the correct
tightness, have them checked with a torque
wrench by an authorized dealer or at a
service station. 7. Install wheel center cap (if equipped) and
remove wheel blocks. Do not install chrome
or aluminum wheel center caps on the
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the jack will not lower by turning the dial
(thumbwheel) by hand, it may be necessary
to use the jack driver in order to lower the
jack. Stow the replaced tire, jack, and tools
as previously described.
9. Adjust the tire pressure when possible.
10. After 25 miles (40 km), check the lug nut torque Úpage 432 with a torque wrench to
ensure that all lug nuts are properly seated
against the wheel.
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 loca-
tion. The correct direction of rotation for dual
tire installations 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 432.WARNING!
Raising the vehicle higher than necessary can
make the vehicle less stable. It could slip off
the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
WARNING!
A loose tire or jack thrown forward in a collision
or hard stop, could endanger the occupants of
the vehicle. Always stow the jack parts and the
spare tire in the places provided.
21_DPF_OM_EN_USC_t.book Page 342
IN CASE OF EMERGENCY343
(Continued)
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 432.
TO STOW THE FLAT OR SPARE — IF
E
QUIPPED
Refer to Upfitters Body Builder’s Guide for
information on stowing your spare tire
(if equipped).
HUB CAPS/WHEEL COVERS — IF
E
QUIPPED
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.
Lug Wrench Insertion Location — Wheel Cover
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.
CAUTION!
Use a pulling motion to remove the hub
cap. Do not use a twisting motion when
removing the hub cap, damage to the hub
cap; finish may occur.
7
21_DPF_OM_EN_USC_t.book Page 343
353
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE
Your vehicle is equipped with an automatic
oil change indicator system. The oil change
indicator system will remind you that it is time to
take your vehicle in for scheduled maintenance.
Based on engine operation conditions, the
oil change indicator message will illuminate.
This means that service is required for your
vehicle. Operating conditions such as frequent
short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will
influence when the “Oil Change Required”
message is displayed. Have your vehicle serviced
as soon as possible, within the next 500 miles
(805 km).
An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change.
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.
Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check the tire inflation pressures and look
for unusual wear or damage. Rotate at the
first sign of irregular wear.
Check the fluid levels of the coolant reservoir,
brake master cylinder, power steering and
automatic transmission (six-speed only), and
fill as needed.
Check function of all interior and exterior lights.
8
21_DPF_OM_EN_USC_t.book Page 353
408SERVICING AND MAINTENANCE
H = Speed Symbol
A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions
The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle
loading, road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:
XL = Extra load (or reinforced) tire, or
LL = Light load tire or
C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
EXAMPLE:
21_DPF_OM_EN_USC_t.book Page 408
410SERVICING AND MAINTENANCE
Tire Terminology And Definitions
Term Definition
B-pillarThe vehicle B-pillar is the structural member of the body located behind the front door.
Cold Tire Inflation Pressure Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been
driven for at least three hours, or driven less than 1 mile (1.6 km) after sitting for a
minimum of three hours. Inflation pressure is measured in units of PSI (pounds per
square inch) or kPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold tire inflation pressure
for this tire. The maximum inflation pressure is molded into the sidewall.
Recommended Cold Tire Inflation Pressure Vehicle manufacturer's recommended cold tire inflation pressure as shown on the tire
placard.
Tire Placard A label permanently attached to the vehicle describing the vehicle’s loading capacity, the
original equipment tire sizes and the recommended cold tire inflation pressures.
21_DPF_OM_EN_USC_t.book Page 410