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IN CASE OF EMERGENCY 445
• Equipment malfunction at the SOS operator facility.
• Operator error by the SOS operator.
• LTE (voice/data) or 4G (data) network congestion.
• Weather.
• Buildings, structures, geographic terrain, or tunnels.
NOTE:
• Your vehicle may be transmitting data as authorized bythe subscriber. • Never place anything on or near the vehicle’s LTE (voice/
data) or 4G (data) and GPS antennas. You could prevent
LTE (voice/data) or 4G (data) and GPS signal reception,
which can prevent your vehicle from placing an emer -
gency call. An operable LTE (voice/data) or 4G (data)
network connection and a GPS signal is required for the
SOS Call system to function properly.
General Information
This device complies with Part 15 of the FCC Rules. Opera -
tion is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
NOTE:
Changes or modifications not expressly approved by the
party responsible for compliance could void the user's
authority to operate the equipment.
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.
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Page 459 of 696

IN CASE OF EMERGENCY 457
Side Marker Lamps (Dual Rear Wheels) — If Equipped Side Marker Lamp Locations
1. Push rearward on the side marker lamp assembly.
2. Pull the entire assembly from the fender.
3. Turn the socket ¼ turn counterclockwise and remove from assembly to access the bulb.
4. Pull the bulb straight out from socket.
5. Reverse the procedure for installation of the bulbs and housing.FUSES
WARNING!
• When replacing a blown fuse, always use an appro -
priate replacement fuse with the same amp rating as the
original fuse. Never replace a fuse with another fuse of
higher amp rating. Never replace a blown fuse with
metal wires or any other material. Do not place a fuse
inside a circuit breaker cavity or vice versa. Failure to
use proper fuses may result in serious personal injury,
fire and/or property damage.
• Before replacing a fuse, make sure that the ignition is off and that all the other services are switched off and/
or disengaged.
• If the replaced fuse blows again, contact an authorized dealer.
• If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine
system, transmission system) or steering system blows,
contact an authorized dealer.
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Page 471 of 696

IN CASE OF EMERGENCY 469
JACKING AND TIRE CHANGING 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.
This feature can be activated through the Uconnect system.
Refer to “Uconnect Settings” in “Multimedia” for further
information.
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.
• 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 slip -
pery areas.
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Page 475 of 696
IN CASE OF EMERGENCY 473
Removing The Spare Tire
1. Remove the spare tire before attempting to jack up thetruck. Attach the lug wrench to the extension tubes with
the curved angle facing away from the vehicle. Insert the
extension tube through the access hole between the lower
tailgate and the top of the bumper and into the winch
mechanism tube.
Inserting The Extension Tubes Into The Access Hole
WARNING!
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.
6
Page 478 of 696
476 IN CASE OF EMERGENCY
Preparations For Jacking
1. Park the vehicle on a firm, level surface. Avoid ice or slip-
pery areas.
2. Place the gear selector into PARK. On four-wheel drive vehicles, shift the transfer case to the 4L position.
3. Turn on the Hazard Warning flasher.
4. Apply the parking brake.
5. Turn the ignition OFF. 6. Block both the front and rear of the wheel diagonally
opposite the jacking position. For example, if the right
front wheel is being changed, block the left rear wheel.
Wheel Blocked
NOTE:
Passengers should not remain in the vehicle when the
vehicle is being jacked.
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 being hit when operating the jack or changing the
wheel.
Page 479 of 696

IN CASE OF EMERGENCY 477
(Continued)
Jacking Instructions
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 flasher.
• Block the wheel diagonally opposite the wheel to be raised.
• Apply the parking brake firmly and set the transmis -
sion in PARK.
• 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 securelystowed, spares must be stowed with the valve stem
facing the ground.
WARNING! (Continued)
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IN CASE OF EMERGENCY 481
NOTE:
If the bottle jack will not lower by turning the dial (thumb-
wheel) 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.
5. Remove the lug nuts and pull the wheel off. On single rear-wheel (SRW) trucks, install the spare wheel and lug
nuts with the cone shaped end of the wheel nuts toward
the wheel. On 3500 dual rear-wheel models (DRW)
trucks, if the outer tire is being replaced then leave the
inner wheel on the vehicle. If the inner wheel is being replaced remove the outer wheel and replace the inner
wheel. The wheel nuts are a two-piece assembly with a
flat face. Lightly tighten the lug nuts. To avoid the risk of
forcing the vehicle off the jack, do not fully tighten the lug
nuts until the vehicle has been lowered.
Rear Inner Wheel Proper Placement (Dual Rear Wheel Equipped)
CAUTION!
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.
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.6
Page 484 of 696

482 IN CASE OF EMERGENCY
Dual Rear Wheel Jack Placement
6. Finish tightening the lug nuts. Push down on the lug wrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. For the correct lug nut
torque refer to “Torque Specifications” in “Technical
Specifications”. If in doubt about the correct tightness,
have them checked with a torque wrench by an autho -
rized dealer or service station. 7. Install the wheel center cap and remove the 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. Stow the replaced tire, jack, and tools as previously described.
NOTE:
The bottle jack will not lower by turning the dial (thumb -
wheel) by hand, it may be necessary to use the jack driver in
order to lower the jack
9. Adjust the tire pressure when possible.
NOTE:
Do not oil wheel studs. For chrome wheels, do not substitute
with chrome plated lug nuts.
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.