ignition Ram 4500 Chassis Cab 2018 Service Manual

WARNING!
• Never leave children alone in a vehicle,or with access to an unlocked vehicle.
Allowing children to be in a vehicle un-
attended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the transmission
gear selector.
•
Do not leave the key fob in or near the
vehicle (or in a location accessible to chil-
dren), and do not leave the ignition (in a
vehicle equipped with Keyless Enter-N-
Go) in the ACC or ON/RUN mode. A child
could operate power windows, other con-
trols, or move the vehicle.
CAUTION!
Damage to the transmission may occur if the
following precautions are not observed:
• Shift into or out of PARK or REVERSE
only after the vehicle has come to a
complete stop.
CAUTION!
• Do not shift between PARK, REVERSE,NEUTRAL, or DRIVE when the engine is
above idle speed.
• Before shifting into any gear, make sure
your foot is firmly pressing the brake
pedal.
NOTE:
You must press and hold the brake pedal
while shifting out of PARK.
Key Ignition Park Interlock
This vehicle is equipped with a Key Ignition
Park Interlock which requires the transmis-
sion to be in PARK before the ignition can be
turned to the LOCK/OFF (key removal) posi-
tion. The key fob can only be removed from
the ignition when the ignition is in the LOCK/
OFF position, and the transmission is locked
in PARK whenever the ignition is in the
LOCK/OFF position. NOTE:
If a malfunction occurs, the system will trap
the key fob in the ignition to warn you that
this safety feature is inoperable. The engine
can be started and stopped but the key fob
cannot be removed until you obtain service.
Brake/Transmission Shift
Interlock System
This vehicle is equipped with a Brake Trans-
mission Shift Interlock system (BTSI) that
holds the transmission gear selector in PARK
unless the brakes are applied. To shift the
transmission out of PARK, the ignition must
be in the ON/RUN mode (engine running or
not) and the brake pedal must be pressed.
Six–Speed Automatic
Transmission — If Equipped
Chassis Cab models (with automatic trans-
mission) may use either the AS66RC or
AS69RC transmission (which are equipped
with a Power Take-Off (PTO) access cover on
the side of the transmission case), or the
66RFE transmission (which has no PTO ac-
cess cover).
129

The transmission gear position display (lo-
cated 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 precise shift schedule. The trans-
mission 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 be-
tween 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 avail-
able 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 informa-
tion. Some models will display both the se-
lected gear limit, and the actual current gear,
while in ERS mode.
Transmission Limp Home Mode
Transmission function is monitored electroni-
cally for abnormal conditions. If a condition is
detected that could result in transmission dam-
age, Transmission Limp Home Mode is acti-
vated. In this mode, the transmission remains
in fourth gear (for 66RFE transmission) or third
gear (for AS66RC/AS69RC transmission) re-
gardless of which forward gear is selected. If an
AS66RC/AS69RC equipped truck enters Limp
Home Mode at highway speeds, it will initially
engage fifth gear, until the vehicle slows to a speed where third gear can be engaged. PARK,
REVERSE, and NEUTRAL will continue to op-
erate. The Malfunction Indicator Light (MIL)
may be illuminated. Limp Home Mode allows
the vehicle to be driven to an authorized dealer
for service without damaging the transmission.
In the event of a momentary problem, the
transmission can be reset to regain all for-
ward gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition OFF.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the trans-
mission will return to normal operation.
NOTE:
Even if the transmission can be reset, we
recommend that you visit your authorized
dealer at your earliest possible convenience.
Your authorized dealer has diagnostic equip-
ment to assess the condition of your trans-
mission.
STARTING AND OPERATING
130

Instrument Panel” in the Owner’s Manual at
www.mopar.com/en-us/care/
owners-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for more information. The speed increment
shown is dependent on the selected speed
unit of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
• Pushing the SET (-) button once will resultin a 1 mph decrease in set speed. Each
subsequent tap of the button results in a
decrease of 1 mph.
• If the button is continually pushed, the set speed will continue to decrease until the
button is released, then the new set speed
will be established.
Metric Speed (km/h)
• Pushing the SET (-) button once will result in a 1 km/h decrease in set speed. Each
subsequent tap of the button results in a
decrease of 1 km/h.
• If the button is continually pushed, the set speed will continue to decrease until the
button is released, then the new set speed
will be established.To Accelerate For Passing
Press the accelerator as you would normally.
When the pedal is released, the vehicle will
return to the set speed.
Using Speed Control On Hills
The transmission may downshift on hills to
maintain the vehicle set speed.
NOTE:
The Speed Control system maintains speed
up and down hills. A slight speed change on
moderate hills is normal.
On steep hills, a greater speed loss or gain
may occur so it may be preferable to drive
without Speed Control.
WARNING!
Speed Control can be dangerous where the
system cannot maintain a constant speed.
Your vehicle could go too fast for the con-
ditions, and you could lose control and
have an accident. Do not use Speed Con-
trol in heavy traffic or on roads that are
winding, icy, snow-covered or slippery.
To Resume Speed
To resume a previously set speed, push the
RES (+) button and release. Resume can be
used at any speed above 20 mph (32 km/h).
To Deactivate
A soft tap on the brake pedal, pushing the
CANCEL button, or normal brake pressure
while slowing the vehicle will deactivate the
Speed Control without erasing the set speed
from memory.
Pushing the ON/OFF button or turning the
ignition switch OFF erases the set speed from
memory.
135

PARKSENSE FRONT AND REAR PARK
ASSIST — IF EQUIPPED
The ParkSense Park Assist system provides
visual and audible indications of the distance
between the rear and/or front fascia and a
detected obstacle when backing up or mov-
ing forward, e.g. during a parking maneuver.
Refer to “ParkSense System Usage
Precautions” in the Owner’s Manual at
www.mopar.com/en-us/care/
owners-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for limitations of this system and recommen-
dations.
ParkSense will retain the last system state
(enabled or disabled) from the last ignition
cycle when the ignition is changed to the
ON/RUN position.
ParkSense can be active only when the gear
selector is in REVERSE or DRIVE. If
ParkSense is enabled at one of these gear
selector positions, the system will remain
active until the vehicle speed is increased to
approximately 7 mph (11 km/h) or above. A
warning will appear in the instrument clusterdisplay indicating the vehicle is above
ParkSense operating speed. The system will
become active again if the vehicle speed is
decreased to speeds less than approximately
6 mph (9 km/h).
ParkSense Sensors
For the 3500, 4500 and 5500 Chassis Cab
vehicles, the rear ParkSense sensors are
shipped loose. Please refer to the Ram Body
Builders Guide for more information.
Cleaning The ParkSense System
Clean the ParkSense sensors with water, car
wash soap and a soft cloth. Do not use rough
or hard cloths. Do not scratch or poke the
sensors. Otherwise, you could damage the
sensors.
PARKVIEW REAR BACK UP CAMERA
— IF EQUIPPED
Your vehicle may be equipped with the
ParkView Rear Back Up Camera that allows
you to see a image of the rear surroundings of
your vehicle whenever the gear selector is put
into REVERSE or whenever it is initiated through the "Backup Camera" button in the
"Controls" menu. Whenever the gear selector
is put into REVERSE, the image will be
displayed in the rearview mirror display (if
equipped) or Uconnect screen (if equipped)
along with a caution note to “check entire
surroundings” across the top of the screen.
After five seconds this note will disappear.
NOTE:
For the 3500, 4500 and 5500 Chassis Cab
vehicles, the Rear Backup Camera is shipped
loose and not installed. Please refer to the
Ram Body Builders Guide for more informa-
tion.
The ParkView Camera is located to the left of
the tailgate handle.
When the vehicle is shifted out of REVERSE
(with Camera delay turned off), the rear Cam-
era mode is exited and the navigation or
audio screen appears again.
When the vehicle is shifted out of REVERSE
(with Camera delay turned on), the rear Cam-
era image will be displayed for up to 10 sec-
onds after shifting out of REVERSE unless
STARTING AND OPERATING
136

the forward vehicle speed exceeds 8 mph
(13 km/h), the transmission is shifted into
PARK or the ignition is switched to the OFF
position.
Whenever the Rear View Camera image is
activated through the "Backup Camera" but-
ton in the "Controls" menu, a display timer for
the image is initiated. The image will con-
tinue to be displayed until the display timer
exceeds 10 seconds and the vehicle speed is
above 8 mph (13 km/h) or the touchscreen
button "X" to disable display of the Rear View
Camera image is pressed.
NOTE:
If the vehicle speed remains below 8 mph
(13 km/h), the Rear View Camera image will
be displayed continuously until deactivated
via the touchscreen button "X".
If equipped with a Cargo Camera, a touch-
screen button
to indicate the current
active Camera image being displayed is made
available whenever the Rear View Camera
image is displayed. If equipped with a Cargo Camera, a touch-
screen button
to switch the display to
Cargo Camera image is made available when-
ever the Rear View Camera image is dis-
played.
A touchscreen button "X" to disable display of
the camera image is made available when the
vehicle is not in REVERSE gear.
When enabled, active guide lines are overlaid
on the image to illustrate the width of the
vehicle and its projected backup path based
on the steering wheel position. The active
guide lines will show separate zones that will
help indicate the distance to the rear of the
vehicle.
NOTE:
For further information about how to access
and change the programmable features of the
ParkView Rear Backup Camera, refer to
“Uconnect Settings ” in “Multimedia” in the
Owner’s Manual at www.mopar.com/en-us/
care/owners-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for further information.WARNING!
Drivers must be careful when backing up
even when using the ParkView Rear Back
Up Camera. Always check carefully behind
your vehicle, and be sure to check for
pedestrians, animals, other vehicles, ob-
structions, or blind spots before backing
up. You are responsible for the safety of
your surroundings and must continue to
pay attention while backing up. Failure to
do so can result in serious injury or death.
CAUTION!
• To avoid vehicle damage, ParkView should only be used as a parking aid.
The ParkView camera is unable to view
every obstacle or object in your drive
path.
• To avoid vehicle damage, the vehicle
must be driven slowly when using
ParkView to be able to stop in time when
an obstacle is seen. It is recommended
that the driver look frequently over his/
her shoulder when using ParkView.
137

• Trailer brakes are recommended for trailersover 1,000 lbs (453 kg) and required for
trailers in excess of 2,000 lbs (907 kg).
WARNING!
•Do not connect trailer brakes to your vehi-
cle's hydraulic brake lines. It can overload
your brake system and cause it to fail. You
might not have brakes when you need them
and could have a collision.
• Towing any trailer will increase your stopping distance. When towing you
should allow for additional space be-
tween your vehicle and the vehicle in
front of you. Failure to do so could result
in a collision.
CAUTION!
If the trailer weighs more than 1,000 lbs
(453 kg) loaded, it should have its own
brakes and they should be of adequate
capacity. Failure to do this could lead to
accelerated brake lining wear, higher
brake pedal effort, and longer stopping
distances.
Integrated Trailer Brake Module — If Equipped
Your vehicle may have an Integrated Trailer
Brake Module (ITBM) for Electric and Elec-
tric Over Hydraulic (EOH) trailer brakes.
NOTE:
This module has been designed and verified
with electric trailer brakes and new electric
over hydraulic systems. Some previous EOH
systems may not be compatible with ITBM. The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the
left to activate power to the trailer's electric
brakes independent of the tow vehicle's
brakes. If the manual brake control lever is
activated while the brake is also applied, the
greater of the two inputs determines the
power sent to the trailer brakes.
The trailer and the vehicle's brake lamps will
come on when either vehicle braking or
manual trailer brakes are applied.
Trailer Brake Status Indicator Light
This light indicates the trailer electrical con-
nection status.
If no electrical connection is detected after
the ignition is turned on, pushing the GAIN
adjustment button or sliding the manual
brake control lever will display the GAIN
setting for 10 seconds and the “Trailer Brake
Status Indicator Light” will not be displayed.
If a fault is detected in the trailer wiring or the
Integrated Trailer Brake Module (ITBM), the
“Trailer Brake Status Indicator Light” will flash.
Adjustment Buttons1 — Decrease (-)
2 — Increase (+)
STARTING AND OPERATING
144

RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing ConditionWheels OFF The
Ground Two-Wheel Drive
Models Four-Wheel Drive Models
Flat Tow NONENOT ALLOWED See Instructions
• Automatic transmission in PARK
• Manual transmission in gear (NOT in NEUTRAL)
• Transfer case in NEUTRAL (N)
• Tow in forward direction
Dolly Tow Front
NOT ALLOWED
NOT ALLOWED
Rear OK NOT ALLOWED
On Trailer ALLOK OK
NOTE:
• When towing your vehicle, always follow
applicable state and provincial laws. Con-
tact state and provincial Highway Safety
offices for additional details.
Recreational Towing —
Two-Wheel Drive Models
DO NOT flat tow this vehicle. Damage to the
drivetrain will result. Recreational towing (for two-wheel drive
models) is allowed
ONLYif the rear wheels are
OFF the ground. This may be accomplished
using a tow dolly or vehicle trailer. If using a
tow dolly, follow this procedure:
1. Properly secure the dolly to the tow ve- hicle, following the dolly manufacturer's
instructions.
2. Drive the rear wheels onto the tow dolly. 3. Firmly apply the parking brake. Place au-
tomatic transmission in PARK, manual
transmission in gear (not in NEUTRAL).
4. Properly secure the rear wheels to the dolly, following the dolly manufacturer's
instructions.
5. Turn the ignition OFF and remove the key fob.
6. Install a suitable clamping device, de- signed for towing, to secure the front
wheels in the straight position.
147

WARNING!
matic transmission is in PARK (or manual
transmission is in gear). The parking brake
should always be applied when the driver
is not in the vehicle.
CAUTION!
It is necessary to follow these steps to be
certain that the transfer case is fully in
NEUTRAL (N) before recreational towing
to prevent damage to internal parts.
1. Bring the vehicle to a complete stop on level ground, with the engine running.
Firmly apply the parking brake.
2. Shift the transmission to NEUTRAL.
3. Press and hold the brake pedal.
4. Depress the clutch pedal on a manual transmission.
5. Shift the transfer case into NEUTRAL: • With manual shift transfer case, shift
the transfer case lever into NEUTRAL
(N).
• With electronic shift transfer case, push and hold the transfer case NEU-
TRAL (N) button. Some models have a
small, recessed "N" button (at the cen-
ter of the transfer case switches) that
must be pressed using a ballpoint pen
or similar object. Other models have a
rectangular NEUTRAL switch, below
the rotary transfer case control knob.
The NEUTRAL (N) indicator light will
blink while the shift is in progress. The
light will stop blinking (stay on solid)
when the shift to NEUTRAL (N) is com-
plete. After the shift is completed and
the NEUTRAL (N) light stays on, re-
lease the NEUTRAL (N) button.
6. Release the parking brake.
7. Shift the transmission into REVERSE. 8. Release the brake pedal (and clutch pedal
on manual transmissions) for five seconds
and ensure that there is no vehicle
movement.
9. Repeat steps seven and eight with auto- matic transmission in DRIVE or manual
transmission in first gear.
10. Shift the transmission to NEUTRAL. Firmly apply the parking brake. Turn OFF
the engine. For vehicles with Keyless
Enter-N-Go, push and hold the ENGINE
START/STOP button until the engine
shuts off.
11. Shift the transmission into PARK or place manual transmission in gear (NOT
in NEUTRAL).
12. Place the ignition in the OFF mode, and remove the key fob.
13. Attach the vehicle to the tow vehicle using a suitable tow bar.
14. Release the parking brake.
149

NOTE:
With electronic shift transfer case:
• Steps 2 through 4 are requirements thatmust be met before pushing the NEUTRAL
(N) button, and must continue to be met
until the shift has been completed. If any of
these requirements are not met before
pushing the NEUTRAL (N) button or are no
longer met during the shift, the NEUTRAL
(N) indicator light will flash continuously
until all requirements are met or until the
NEUTRAL (N) button is released.
• The ignition must be in the ON/RUN mode for a shift to take place and for the position
indicator lights to be operable. If the igni-
tion is not in the ON/RUN mode, the shift
will not take place and no position indicator
lights will be on or flashing.
• A flashing NEUTRAL (N) position indicator light indicates that shift requirements have
not been met.Shifting Out Of NEUTRAL (N)
Use the following procedure to prepare your
vehicle for normal usage:
1. Bring the vehicle to a complete stop,
leaving it connected to the tow vehicle.
2. Firmly apply the parking brake.
3. Turn the ignition to the ON/RUN mode, but do not start the engine.
4. Press and hold the brake pedal.
5. Shift the transmission into NEUTRAL.
• With manual shift transfer case, shiftthe transfer case lever to the desired
position.
• With electronic shift transfer case with rotary selector switch, push and hold
the transfer case NEUTRAL (N) button
until the NEUTRAL (N) indicator light
turns off. After the NEUTRAL (N) indi-
cator light turns off, release the NEU-
TRAL (N) button. After the NEUTRAL
(N) button has been released, the
transfer case will shift to the position
indicated by the selector switch. • With electronic shift transfer case with
push-button selector switch, push and
hold the switch for the desired transfer
case position, until the NEUTRAL (N)
indicator light turns off and the desired
position indicator light turns on.
NOTE:
When shifting out of transfer case NEUTRAL
(N), the engine should remain OFF to avoid
gear clash.
6. Shift automatic transmission into PARK.
7. Release the brake pedal (and clutch pedal on a manual transmission).
8. Disconnect vehicle from the tow vehicle.
9. Start the engine.
10. Press and hold the brake pedal.
11. Release the parking brake.
12. Shift the transmission into gear, release the brake pedal (and clutch pedal on
manual transmissions), and check that
the vehicle operates normally.
STARTING AND OPERATING
150

NOTE:
With electronic shift transfer case:
• Steps 3 and 4 are requirements that mustbe met before pushing the button to shift
out of NEUTRAL (N), and must continue to
be met until the shift has been completed.
If any of these requirements are not met
before pushing the button or are no longer
met during the shift, the NEUTRAL (N)
indicator light will flash continuously until
all requirements are met or until the button
is released. • The ignition must be in the ON/RUN mode
for a shift to take place and for the position
indicator lights to be operable. If the igni-
tion is not in the ON/RUN mode, the shift
will not take place and no position indicator
lights will be on or flashing.
• A flashing NEUTRAL (N) position indicator light indicates that shift requirements have
not been met.
151