service Ram 2500 2018 Repair Manual

After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you can
get any problems taken care of right away and have your
vehicle ready when you need it.
•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts. •
After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
• If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a wheel
imbalance and freeing the wheels of it will correct the
situation.
444 STARTING AND OPERATING

WARNING!(Continued)
SiriusXM Guardian features and applications in this
vehicle. Only use Uconnect features and SiriusXM
Guardian services when it is safe to do so. Failure to do
so may result in an accident involving serious injury or
death.
NOTE:
• Your vehicle may be transmitting data as authorized by
the subscriber.
• The SOS and ASSIST buttons will only function if you
are connected to an operable LTE (voice/data) or 4G
(data) network. 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.
• SiriusXM Guardian Customer Care – In-vehicle support
for SiriusXM Guardian.
• Vehicle Customer Care – Total support for all other
vehicle issues.
SOS Call
1. Push the SOS Call button on the Rearview Mirror.
NOTE: In case the SOS Call button is pushed in error, there
will be a ten second delay before the SOS Call system
initiates a call to a SOS operator. To cancel the SOS Call
connection, push the SOS call button on the Rearview
Mirror or press the cancellation button on the Device
Screen. Termination of the SOS Call will turn off the green
LED light on the Rearview Mirror.
2. The LED light located between the ASSIST and SOS buttons on the Rearview Mirror will turn green once a
connection to a SOS operator has been made.
448 IN CASE OF EMERGENCY

3. Once a connection between the vehicle and a SOSoperator is made, the SOS Call system may transmit the
following important vehicle information to a SOS op-
erator:
• Indication that the occupant placed a SOS Call.
• The vehicle brand.
• The last known GPS coordinates of the vehicle.
4. You should be able to speak with the SOS operator through the vehicle audio system to determine if addi-
tional help is needed.
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 as-
sume all risks related to the use of the Uconnect and
SiriusXM Guardian features and applications in this
vehicle. Only use Uconnect features and SiriusXM
Guardian services when it is safe to do so. Failure to do
so may result in an accident involving serious injury or
death. NOTE:
•Your vehicle may be transmitting data as authorized
by the subscriber.
• Once a connection is made between the vehicle’s SOS
Call system and the SOS operator, the SOS operator
may be able to open a voice connection with the
vehicle to determine if additional help is needed. Once
the SOS operator opens a voice connection with the
vehicle’s SOS Call system, the operator should be able
to speak with you or other vehicle occupants and hear
sounds occurring in the vehicle. The vehicle’s SOS Call
system will attempt to remain connected with the SOS
operator until the SOS operator terminates the connec-
tion.
5. The SOS operator may attempt to contact appropriate emergency responders and provide them with impor-
tant vehicle information and GPS coordinates.
WARNING!
•If anyone in the vehicle could be in danger (e.g., fire
or smoke is visible, dangerous road conditions or
location), do not wait for voice contact from an
(Continued)
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IN CASE OF EMERGENCY 449

WARNING!(Continued)
Emergency Services Agent. All occupants should exit
the vehicle immediately and move to a safe location.
• Never place anything on or near the vehicle’s oper-
able network and GPS antennas. You could prevent
operable network and GPS signal reception, which
can prevent your vehicle from placing an emergency
call. An operable network and GPS signal reception
is required for the SOS Call system to function
properly.
• The SOS Call system is embedded into the vehicle’s
electrical system. Do not add aftermarket electrical
equipment to the vehicle’s electrical system. This
may prevent your vehicle from sending a signal to
initiate an emergency call. To avoid interference that
can cause the SOS Call system to fail, never add
aftermarket equipment (e.g., two-way mobile radio,
CB radio, data recorder, etc.) to your vehicle’s electri-
cal system or modify the antennas on your vehicle. IF
YOUR VEHICLE LOSES BATTERY POWER FOR
ANY REASON (INCLUDING DURING OR AFTER
AN ACCIDENT), THE UCONNECT FEATURES,
(Continued)
WARNING! (Continued)
APPS AND SERVICES, AMONG OTHERS, WILL
NOT OPERATE.
• Modifications to any part of the SOS Call system
could cause the air bag system to fail when you need
it. You could be injured if the air bag system is not
there to help protect you.
SOS Call System Limitations
Vehicles sold in Mexico DO NOThave SOS Call system
capabilities.
SOS or other emergency line operators in Mexico may not
answer or respond to SOS system calls.
If the SOS Call system detects a malfunction, any of the
following may occur at the time the malfunction is de-
tected, and at the beginning of each ignition cycle:
• The Rearview Mirror light located between the ASSIST
and SOS buttons will continuously be illuminated red.
• The Device Screen will display the following message
“Vehicle device requires service. Please contact your
dealer.”
450 IN CASE OF EMERGENCY

•An In-Vehicle Audio message will state “Vehicle device
requires service. Please contact your dealer.”
WARNING!
•Ignoring the Rearview Mirror light could mean you
will not have SOS Call services. If the Rearview
Mirror light is illuminated, have an authorized
dealer service the SOS Call system immediately.
• The Occupant Restraint Control module turns on the
air bag Warning Light on the instrument panel if a
malfunction in any part of the system is detected. If
the Air Bag Warning Light is illuminated, have an
authorized dealer service the Occupant Restraint
Control system immediately.
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop the SOS
Call system operation. These include, but are not limited
to, the following factors:
• Delayed accessories mode is active.
• The ignition is in the OFF position.
• The vehicle’s electrical systems are not intact. •
The SOS Call system software and/or hardware are
damaged during a crash.
• The vehicle battery loses power or becomes discon-
nected during a vehicle crash.
• LTE (voice/data) or 4G (data) network and/or Global
Positioning Satellite signals are unavailable or ob-
structed.
• 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.
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 as-
sume all risks related to the use of the Uconnect and
SiriusXM Guardian features and applications in this
vehicle. Only use Uconnect features and SiriusXM
(Continued)
7
IN CASE OF EMERGENCY 451

WARNING!(Continued)
Guardian services when it is safe to do so. Failure to do
so may result in an accident involving serious injury or
death.
NOTE:
• Your vehicle may be transmitting data as authorized by
the 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 emergency 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.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2)
this device must accept any interference received, includ-
ing 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.
CAUTION!
To avoid damage to the mirror during cleaning, never
spray any cleaning solution directly onto the mirror.
Apply the solution onto a clean cloth and wipe the
mirror clean.
BULB REPLACEMENT
Replacement Bulbs
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
Interior Bulbs
Bulb Number
Overhead Console Lamps TS 212–9
Dome Lamp 7679
For lighted switches, see your authorized dealer for
replacement instructions.
452 IN CASE OF EMERGENCY

Exterior Bulbs
Bulb Number
Base Quad Headlamp –
Low Beam H11LL
Base Quad Headlamp –
High Beam 9005LL
Front Turn Signal Lamp
(Base Quad Headlamp) 3157NA
Premium Bi Halogen Pro-
jector Headlamp - Low
Beam 9005Sl+
Premium Bi Halogen Pro-
jector Headlamp - High
Beam 9005LL
Front Turn Signal Lamp
(Premium Headlamp) LED (Serviced at autho-
rized dealer)
Fog Lamp (Horizontal
shape) 9145
Fog Lamp (Vertical shape) 9006
Bulb Number
Center High Mounted
Stop Lamp (CHMSL) 921K
Rear Cargo Lamp 921
LED Center High
Mounted Stop Lamp
(CHMSL)/Cargo Lamp LED (Serviced at autho-
rized dealer)
Cab Roof Marker Lamps 194NA
Base Rear Tail/Turn and
Stop Lamp 3157K
Premium Rear Tail/Turn
and Stop Lamp LED (Serviced at autho-
rized dealer)
Premium Backup Lamp 7440/W21W
Rear Lamp Bar ID Marker
Lamp 194
Side Marker Lamps (Dual
Rear Wheels) 194
Backup Lamp 921
Rear License Plate Lamp 194
7
IN CASE OF EMERGENCY 453

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 autho-
rized 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.
Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains car-
tridge fuses, micro fuses, relays, and circuit breakers. A
description of each fuse and component may be stamped
on the inside cover, otherwise the cavity number of each
fuse is stamped on the inside cover that corresponds to the
following chart.
Cavity Cartridge Fuse Micro Fuse Description
F01 80 Amp Black –Rad Fan Control Module – If Equipped
Power Distribution Center Location
7
IN CASE OF EMERGENCY 461

CavityCartridge Fuse Micro Fuse Description
F03 60 Amp Yellow –Rad Fan – If Equipped
F05 40 Amp Green –Compressor for Air Suspension – If
Equipped
F06 40 Amp Green –Antilock Brakes/Electronic Stability Control
Pump
F07 40 Amp Green –Starter Solenoid
F08 20 Amp Blue
(1500 LD/Cummins Diesel) –
Emissions Diesel – If Equipped
F09 40 Amp Green (Spe-
cial Services Vehicle& Cummins Diesel) –
Diesel Fuel Heater – If Equipped
F10 40 Amp Green –Body Controller / Exterior Lighting #2
F10 50 Amp Red –Body Controller / Exterior Lighting #2 – If
Equipped with Stop/Start
F11 30 Amp Pink –Integrated Trailer Brake Module – If
Equipped
F12 40 Amp Green –Body Controller #3 / Power Locks
F13 40 Amp Green –Blower Motor
F14 40 Amp Green –Body Controller #4 / Interior Lighting
F16 30 Amp Pink –Smart Bar – If Equipped
462 IN CASE OF EMERGENCY

CavityCartridge Fuse Micro Fuse Description
F19 20 Amp Blue
(1500 LD Diesel)
30 Amp Pink (Cum- mins Diesel) –
SCR – If Equipped
F20 30 Amp Pink –Passenger Door Module
F21 30 Amp Pink –Drive Train Control Module
F22 20 Amp Blue
30 Amp Pink (Cum- mins Diesel) –
Engine Control Module
F23 30 Amp Pink –Body Controller #1 / Interior Lighting
F24 30 Amp Pink –Driver Door Module
F25 30 Amp Pink – Front Wiper
F26 30 Amp Pink –Antilock Brakes / Stability Control Module /
Valves
F28 20 Amp Blue –Trailer Tow Backup Lights – If Equipped
F29 20 Amp Blue –Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink –Trailer Tow Receptacle
F31 30 Amp Pink
(1500 LD Diesel) –
Urea Heater Control – If Equipped
F32 –– Spare Fuse
F33 20 Amp Blue –Special Services Vehicle Only
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IN CASE OF EMERGENCY 463