2018 Ram 3500 Chassis Cab power steering

STARTING AND OPERATING
CONTENTS
STARTING THE ENGINE — GASOLINE
ENGINE ............................. .238
▫ Automatic Transmission ..................238
▫ Normal Starting ....................... .239
▫ Keyless Enter-N-Go — Ignition .............240
▫ If Engine Fails To Start ..................241
▫ Cold Weather Operation
(Below –22°F Or 30°C) ..................242
▫ After Starting ......................... .242
 ENGINE BLOCK HEATER — IF EQUIPPED .....242
 ENGINE BREAK-IN RECOMMENDATIONS . . . .242
 PARKING BRAKE ...................... .243
 AUTOMATIC TRANSMISSION ..............245
▫ Key Ignition Park Interlock ................246 ▫
Brake/Transmission Shift Interlock System . . . .246
▫ Six–Speed Automatic Transmission —
If Equipped ......................... .247
 FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ......................... .255
▫ Manually Shifted Transfer Case — If Equipped . .255
▫ Electronically Shifted Transfer Case
(Four-Position Switch) — If Equipped ........259
 LIMITED-SLIP DIFFERENTIAL ..............263
 POWER TAKE OFF OPERATION — IF EQUIPPED
(CHASSIS CAB ONLY) ....................264
▫ Stationary Mode ...................... .264
▫ Mobile Mode ......................... .265
 POWER STEERING ...................... .266
▫ Hydraulic Power Steering ................266
6

Six–Speed Automatic Transmission — If Equipped
Chassis Cab models (with automatic transmission) may
use either the AS66RC transmission (which is equipped
with a Power Take-Off (PTO) access cover on the side of the
transmission case), or the 66RFE transmission (which has
no PTO access cover).
The transmission gear position display (located in the
instrument cluster) indicates the transmission gear range.
The gear selector is mounted on the right side of the
steering column. You must press the brake pedal to move
the gear selector out of PARK (refer to “Brake/
Transmission Shift Interlock System” in this section). To
drive, move the gear selector from PARK or NEUTRAL to
the DRIVE position. Pull the gear selector toward you
when shifting into REVERSE or PARK, or when shifting
out of PARK.
The electronically-controlled transmission provides a pre-
cise shift schedule. The transmission electronics are self-
calibrating; therefore, the first few shifts on a new vehicle
may be somewhat abrupt. This is a normal condition, and
precision shifts will develop within a few hundred miles
(kilometers).Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped. Be
sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector has only PARK, REVERSE,
NEUTRAL, and DRIVE shift positions. Manual downshifts
can be made using the Electronic Range Select (ERS) shift
control. Pushing the ERS (-/+) switches (on the gear
selector) while in the DRIVE position will select the highest
available transmission gear, and will display that gear limit
in the instrument cluster as 1, 2, 3, etc. Refer to
Electronic
Range Select (ERS) Operation in this section for further
information. Some models will display both the selected
gear limit, and the actual current gear, while in ERS mode.
Gear Ranges
Do not depress the accelerator pedal when shifting from
PARK or NEUTRAL into another gear range.
NOTE: After selecting any gear range, wait a moment to
allow the selected gear to engage before accelerating. This
is especially important when the engine is cold.
6
STARTING AND OPERATING 247

•(ON/OFF) switch has been activated.
• Vehicles with automatic transmission must be in PARK
or DRIVE.
• Parking brake must not be applied.
• Brake pedal must not be applied.
• No vehicle, brake or clutch switch faults present.
• Vehicle engine must be running.
• PTO must be correctly installed using the vehicle pro-
vided circuits.
The customer may choose to use the PTO while the vehicle
is moving. To do so, the PTO function must be activated
prior to taking the vehicle out of PARK. This is accom-
plished by activating the upfitter-provided PTO on/off
switch. At this point, the customer may place the vehicle in
a forward or reverse gear and have PTO operation once the
vehicle begins to move. To disengage PTO operation and
return to “standard vehicle operation” simply toggle the
on/off switch to the OFF position. NOTE:
For application specific information with respect
to PTO and pump requirements and additional vehicle
information (wiring schematics, preset idle values, engine
speed limits, and vehicle hardware and software require-
ments) please refer to the Body Builders Guide by access-
ing rambodybuilder.com and choosing the appropriate
links.
POWER STEERING
Hydraulic Power Steering
The standard power steering system will give you good
vehicle response and increased ease of maneuverability in
tight spaces. The system will provide mechanical steering
capability if power assist is lost.
If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
266 STARTING AND OPERATING

NOTE:
•Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that
there is a problem with the power steering system.
• Upon initial start-up in cold weather, the power steering
pump may make noise for a short amount of time. This
is due to the cold, thick fluid in the steering system. This
noise should be considered normal, and it does not in
any way damage the steering system.
CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
Power Steering Fluid Check
Checking the power steering fluid level at a defined service
interval is not required. The fluid should only be checked
if a leak is suspected, abnormal noises are apparent,
and/or the system is not functioning as anticipated. Check fluid level when the engine is cold and off. Coordinate
inspection efforts through an authorized dealer.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power steer-
ing components. Such damage is not covered by the
New Vehicle Limited Warranty.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do not
overfill. Use only manufacturer’s recommended power
steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.
SPEED CONTROL
When engaged, the Speed Control takes over accelerator
operations at speeds greater than 25 mph (40 km/h).
6
STARTING AND OPERATING 267

•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 assume all risks
related to the use of the Uconnect and SiriusXM Guard-
ian 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.
322 IN CASE OF EMERGENCY

3. Pull the bulb straight from it’s socket and replace.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.
Removing The Bulb From The Bulb Socket
7
IN CASE OF EMERGENCY 329

CavityCartridge Fuse Micro Fuse Description
F74 –20 Amp Yellow (Gas
Engine & 1500 LD Diesel) Brake Vacuum Pump Gas/Diesel – If
Equipped
F75 –10 Amp Red Coolant Temperature Valve Actuator
F76 –10 Amp Red Antilock Brakes / Electronic Stability Control
F77 –10 Amp Red Drivetrain Control Module/Front Axle Dis-
connect Module
F78 –10 Amp Red Engine Control Module / Electric Power
Steering
F79 –15 Amp Blue Clearance Lights
F80 –10 Amp Red Universal Garage Door Opener / Compass
F81 –20 Amp Yellow Trailer Tow Right Turn / Stop Lights
F82 –10 Amp Red Steering Column Control Module / Cruise
Control
F84 –15 Amp Blue Switch Bank / Instrument Cluster
F85 –10 Amp Red Airbag Module
F86 –10 Amp Red Airbag Module
F87 –10 Amp Red Air Suspension – If Equipped / Trailer Tow
/ Steering Column Control Module
F88 –15 Amp Blue Instrument Panel Cluster
7
IN CASE OF EMERGENCY 335

CavityCartridge Fuse Micro Fuse Description
F90/F91 –20 Amp Yellow Power Outlet (Rear Seats) Customer Select-
able
F93 –20 Amp Yellow Cigar Lighter
F94 –10 Amp Red Shifter / Transfer Case Module
F95 –10 Amp Red Rear Camera / Park Assist
F96 –10 Amp Red Rear Seat Heater Switch
F97 –25 Amp Clear Rear Heated Seats & Heated Steering Wheel
– If Equipped
F98 –25 Amp Clear Front Heated Seats – If Equipped
F99 –10 Amp Red Climate Control
F100 –10 Amp Red Upfitters – If Equipped
F101 –15 Amp Blue Electrochromatic Mirror / Smart High Beams
– If Equipped
F104 –20 Amp Yellow Power Outlets (Instrument Panel / Center
Console)
336 IN CASE OF EMERGENCY