2018 Ram 2500 ECU

will close fully and stop automatically. This is
called “Express Close”. During Express Close
operation, any other actuation of the switch
will stop the sunroof.
Manual
To close the sunroof, push and hold the
switch in the forward position. Any release of
the switch will stop the movement and the
sunroof will remain in a partially closed con-
dition until the sunroof switch is pushed
again.
Wind Buffeting
Wind buffeting can be described as the per-
ception of pressure on the ears or a
helicopter-type sound in the ears. Your ve-
hicle may exhibit wind buffeting with the
windows down, or the sunroof (if equipped) in
certain open or partially open positions. This
is a normal occurrence and can be mini-
mized. If the buffeting occurs with the rear
windows open, then open the front and rear
windows together to minimize the buffeting.
If the buffeting occurs with the sunroof open,
adjust the sunroof opening to minimize the
buffeting or open any window.
Pinch Protect Feature
This feature will detect an obstruction in the
closing of the sunroof during the Express
Close operation. If an obstruction in the path
of the sunroof is detected, the sunroof will
automatically retract. Remove the obstruc-
tion if this occurs.
NOTE:
If three consecutive sunroof close attempts
result in Pinch Protect reversals, Pinch Pro-
tect will disable and the sunroof must be
closed in Manual Mode.
Venting Sunroof — Express
Push and release the Vent button within one
half second and the sunroof will open to the
vent position. This is called “Express Vent”
and it will occur regardless of sunroof posi-
tion. During Express Vent operation, any
movement of the switch will stop the sunroof.
HOOD
To Open The Hood
To open the hood, two latches must be re-
leased.
1. Pull the hood release lever located belowthe steering wheel at the base of the
instrument panel.
Hood Release Lever Location
GETTING TO KNOW YOUR VEHICLE
50

2. Reach into the opening beneath the cen-ter of the hood and push the safety latch
lever to the left to release it, before raising
the hood.
To Close The Hood
Lower the hood to approximately 12 inches
(30 cm) from the engine compartment and
drop it. Make sure that the hood is completely
closed.
WARNING!
Be sure the hood is fully latched before
driving your vehicle. If the hood is not fully
latched, it could open when the vehicle is
in motion and block your vision. Failure to
follow this warning could result in serious
injury or death.
CAUTION!
To prevent possible damage, do not slam
the hood to close it. Use a firm downward
push at the front center of the hood to
ensure that both latches engage.
UNIVERSAL GARAGE DOOR OPENER
(HOMELINK)
• HomeLink replaces up to three hand-heldtransmitters that operate devices such as
garage door openers, motorized gates,
lighting or home security systems. The
HomeLink unit is powered by your vehicles
12 Volt battery. • The HomeLink buttons that are located in
the overhead console or sunvisor designate
the three different HomeLink channels.
• To operate HomeLink, push and release any of the programmed HomeLink buttons.
These buttons will activate the devices they
are programmed to with each press of the
corresponding HomeLink button.
Before You Begin Programming
HomeLink
For efficient programming and accurate
transmission of the radio-frequency signal, it
is recommended that a new battery be placed
in the hand-held transmitter of the device
that is being programmed to the HomeLink
system. Make sure your hand-held transmit-
ter is programmed to activate the device you
are trying to program your HomeLink button
to.
Ensure that your vehicle is parked outside of
the garage before you begin programming.
It is recommended that you erase all the
channels of your HomeLink before you use it
for the first time.
HomeLink Buttons
51

NOTE:
Once initiated by the "Cargo Camera" button,
the Cargo Camera image may be deactivated
by pressing the "X" soft button. On deactiva-
tion, the previous selected screen will appear.
RAMBOX — IF EQUIPPED
The RamBox system is an integrated pickup
box storage and cargo management system
consisting of three features:
• Integrated box side storage bins• Cargo extender/divider
• Bed rail tie-down system
RamBox Integrated Box Side
Storage Bins
Cargo storage bins are located on both sides
of the pickup box. The cargo storage bins
provide watertight, lockable, illuminated
storage for up to 150 lbs (68 kg) for 1500 se-
ries vehicles or 300 lbs (136 kg) for
2500 and 3500 series vehicles of evenly
distributed cargo.
CAUTION!
Failure to follow the following items could
cause damage to the vehicle:
• Assure that all cargo inside the storage
bins is properly secured.
• Do not exceed cargo weight rating of
150 lb (68 kg) 1500 series vehicles or
300 lbs (136 kg) for 2500 and 3500 se-
ries vehicles per bin.
To open a storage bin with the RamBox un-
locked, push and release the button located
on the lid. The RamBox lid will open upward
to allow hand access. Lift the lid to fully
open.
NOTE:
RamBox will not open when the pushbutton
is pushed if the RamBox is locked.
Cargo Camera Display
RamBox Features
1 — Bed Extender
2 — Bed Rail Tie-Down System Adjust-
able Cleats
3 — Storage Bin
4 — Push The Button To Open
59

WARNING!
• Do not drive the vehicle with the storagebin covers open.
• Keep the storage bin covers closed and
latched while the vehicle is in motion.
• Do not use a storage bin latch as a tie
down.
RamBox Storage Bin Cover Emergency Re-
lease Lever — If Equipped
As a security measure, a Storage Bin Cover
Emergency Release is built into the storage
bin cover latching mechanism.
NOTE:
In the event of an individual being locked
inside the storage bin, the storage bin cover
can be opened from inside of the bin by
pulling on the glow-in-the-dark lever at-
tached to the storage bin cover latching
mechanism.
Bed Extender — If Equipped
The bed extender has three functional posi-
tions:
• Storage Position • Divider Position
• Extender Position
Storage Position
The storage position for the bed extender is at
the front of the truck bed which maximizes
the bed cargo area when not in use.
To install the bed extender into the storage
position, perform the following:
1. Make sure the center handle is unlocked
using the vehicle key and rotate the center
handle vertically to release the extender
side gates.
2. With the side gates open, position the extender fully forward in the bed against
the front panel.
3. Rotate the side gates closed allowing the outboard ends to be positioned in front of
the cargo tie down loops.
4. Rotate the center handle horizontally to secure the side gates in the closed
position.
5. Lock the center handle using the vehicle key to secure the panel into place.
Divider Position
The divider position is intended for managing
your cargo and assisting in keeping cargo
from moving around the bed. There are 11 di-
vider slots along the bed inner panels which
allow for various positions to assist in manag-
ing your cargo.
To install the bed extender into a divider
position, perform the following:
1. Make sure the center handle is unlocked
using the vehicle key and rotate the center
handle vertically to release the extender
side gates.
2. With the side gates open, position the extender so the outboard ends align with
the intended slots in the sides of the bed.
3. Rotate the side gates closed so that the outboard ends are secured into the in-
tended slots of the bed.
4. Rotate the center handle horizontally to secure the side gates in the closed
position.
5. Lock the center handle to secure the panel into place.
61

Extender Position
The extender position allows you to load the
bed of the truck beyond the tail gate. The bed
extender will add an additional 15 inches
(38 cm) in the back of the truck when addi-
tional cargo room is needed. The extender
position utilizes a locating pin and rotating
handle located on both sides of the truck bed
near the tailgate.
To install the bed extender into the extender
position, perform the following:
1. Lower the tailgate.
2. Make sure the center handle is unlockedand rotate the center handle vertically in
order to release the extender side gates.
3. Fit the end of the side gate ends onto the pin and handle.
4. Rotate the handles to the horizontal posi- tion to secure into place.WARNING!
To reduce the risk of potential injury or
property damage:
• Cargo must be secured.
• Do not exceed cargo load rating of yourvehicle.
• Secure all loads to truck utilizing cargo
tie downs.
• Extender should not be used as cargo tie
down.
• When vehicle is in motion do not exceed
150 lbs (68 kg) load on the tailgate.
• The bed extender is not intended for off
road use.
• When not in use, the extender/divider
should be in stowed or divider position
with the tailgate closed.
• When in use all handles are to be in the
locked position.
Bed Rail Tie-Down System
CAUTION!
The maximum load per cleat should not
exceed 250 lbs (113 kg) and the angle of
CAUTION!
the load on each cleat should not exceed
45 degrees above horizontal, or damage to
the cleat or cleat rail may occur.
There are two adjustable cleats on each side
of the bed that can be used to assist in
securing cargo.
Each cleat must be located and tightened
down in one of the detents, along either rail,
in order to keep cargo properly secure.
To move the cleat to any position on the rail,
turn the nut counterclockwise, approximately
three turns. Then pull out on the cleat and
slide it to the detent nearest the desired
location. Make sure the cleat is seated in the
detent and tighten the nut.
To remove the cleats from the utility rail,
remove the end cap screw located in the
center of the end cap, using a #T30 Torx
head driver. Remove the end cap and slide
the cleat off the end of the rail.
GETTING TO KNOW YOUR VEHICLE
62

EASY-OFF TAILGATE
To simplify mounting of a camper unit with an
overhang, the tailgate can be removed.
NOTE:
If your vehicle is equipped with a rear camera
or Remote Keyless Entry, the electrical con-
nector must be disconnected prior to remov-
ing the tailgate.
Removing The Tailgate
1. Disconnect the wiring harness for the rearcamera or Remote Keyless Entry (if
equipped).
2. Unlatch the tailgate and remove the sup- port cables by releasing the lock tang from
the pivot. 3. Raise the right side of the tailgate until
the right side pivot clears the hanger
bracket.
4. Slide the entire tailgate to the right to free the left side pivot.
5. Remove the tailgate from the vehicle.
NOTE:
Do not carry the tailgate loose in the truck
pickup box.Locking Tailgate
The lock is located next to the tailgate
handle. The tailgate can be locked using the
vehicle key or by locking the truck with the
key fob if equipped with remote keyless entry.
TRI-FOLD TONNEAU COVER
The Tonneau Cover can be removed and rein-
stalled by using the locking clamps located
underneath the Tonneau Cover. Refer to the
Owner’s Manual for further information.
NOTE:
Be sure that the Tonneau Cover is secured
before driving.
63

GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY.....66
Instrument Cluster Display Controls ....66
Diesel Messages And Warnings — 3.0L
Diesel Engine .................67
Diesel Messages And Warnings — 6.7L
Cummins Diesel Engine ...........70
Oil Life Reset .................74
Instrument Cluster Display Programmable
Features ....................75
WARNING LIGHTS AND MESSAGES ....76
Red Warning Lights..............76
Yellow Warning Lights ............78
Yellow Indicator Lights ............82
Green Indicator Lights ............83
White Indicator Lights ............84
Blue Indicator Lights .............84
ONBOARD DIAGNOSTIC SYSTEM —
OBDII .....................84
Onboard Diagnostic System (OBD II)
Cybersecurity.................85
GETTING TO KNOW YOUR INSTRUMENT PANEL
65

When the DEF system needs to be serviced
the following warnings will display:
•Service DEF System See Dealer — This mes-
sage will display when the fault is initially
detected, each time the vehicle is started,
and periodically during driving. The mes-
sage will be accompanied by a single
chime. We recommend you drive to your
nearest authorized dealer and have your
vehicle serviced as soon as possible.
• 5 MPH Max Speed in 150 mi Service DEF
System See Dealer — This message will
display if the DEF system has not been
serviced after the “Service DEF System –
See Dealer” message is displayed. This
message will continuously display until the
mileage counter reaches zero, and will be
accompanied by a periodic chime. The
message will continue to countdown until it
reaches zero unless the vehicle is serviced.
We recommend you drive to your nearest
authorized dealer and have your vehicle
serviced immediately. NOTE:
Under some circumstances this mileage
counter may start with a value of less than
150 miles (241 km). For example, if recur-
ring faults are detected in a time interval of
less than 40 hours, the counter may restart
at the value where it stopped when a previ-
ous fault was temporarily remedied, or at a
minimum of 50 miles (80 km).
•
5 MPH Max Speed on Restart, Long Idle or
Refuel Service DEF See Dealer — This mes-
sage will continuously display when the
mileage counter reaches zero, and will be
accompanied by a periodic chime.
The vehicle will only be capable of a maxi-
mum speed of 5 MPH upon the first of the
following conditions to occur: – If the vehicle is shutoff and restarted.
– If the vehicle is idled for an extendedperiod of time, approximately one hour
or greater.
– If the system detects that the level of fuel in the tank has increased. •
5 MPH Max Speed Service DEF System See
Dealer — This message will continuously
display, and will be accompanied by a pe-
riodic chime. Although the vehicle can be
started and placed in gear, the vehicle will
only operate at a maximum speed of
5 MPH. Your vehicle will require towing,
see your authorized dealer for service.
NOTE:
When this message is displayed, the engine
can still be started. However, the vehicle
will only operate at a maximum speed of
5 MPH.
• Incorrect DEF Detected See Dealer — This
message will display when the fault is ini-
tially detected, each time the vehicle is
started, and periodically during driving.
The message will be accompanied by a
single chime. We recommend you drive to
your nearest authorized dealer and have
your vehicle serviced as soon as possible.
RAM Active Air System
Your vehicle is equipped with an advanced
Ram Active Air system that provides en-
hanced performance, especially when towing
73