2019 Ram 3500 ECU

GETTING TO KNOW YOUR VEHICLE 137
RamBox Safety Warning
Carefully follow these warnings to help prevent personal
injury or damage to your vehicle:RamBox Storage Bin Cover Emergency Release Lever —
If Equipped
As a security measure, a Storage Bin Cover Emergency
Release is built into the storage bin cover latching mecha
-
nism.
Storage Bin Cover Emergency Release Lever
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 attached to the
storage bin cover latching mechanism.
WARNING!
• Always close the storage bin covers when your vehicle is unattended.
• Do not allow children to have access to the storage bins. Once in the storage bin, young children may not be able
to escape. If trapped in the storage bin, children can die
from suffocation or heat stroke.
• In an accident, serious injury could result if the storage bin covers are not properly latched.
• Do not drive the vehicle with the storage bin 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.2

140 GETTING TO KNOW YOUR VEHICLE
4. Rotate the center handle horizontally to secure the sidegates in the closed position.
Side Gates Closed
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 divider slots along the bed inner panels which
allow for various positions to assist in managing your cargo. To install the bed divider 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
divider side gates.
Center Handle And Lock
1 — Center Handle Lock
2 — Handle

GETTING TO KNOW YOUR VEHICLE 141
2. With the side gates open, position the divider so theoutboard ends align with the intended slots in the sides of
the bed.
Aligning Gate To Slots
3. Rotate the side gates closed so that the outboard ends are secured into the intended slots of the bed. 4. Rotate the center handle horizontally to secure the side
gates in the closed position.
Side Gates Closed
5. Lock the center handle to secure the panel into place.
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142 GETTING TO KNOW YOUR VEHICLE
Bed Rail Tie-Down System
NOTE:
This feature is available for vehicles both equipped, or not
equipped, with a RamBox.There are two adjustable cleats on each side of the bed that
can be used to assist in securing cargo.
Adjustable Cleats
Each cleat must be located and tightened down in one of the
detents, along either rail, in order to keep cargo properly
secure.
CAUTION!
The maximum load per cleat should not exceed 250 lbs
(113 kg) and the angle of the load on each cleat should
not exceed 45 degrees above horizontal, or damage to the
cleat or cleat rail may occur.

GETTING TO KNOW YOUR VEHICLE 147
TRI-FOLD TONNEAU COVER — IF EQUIPPED
Your vehicle may be equipped with a Tri-Fold Tonneau
Cover which consists of different features:
• Easy Tri-Fold cover
• Tonneau fore aft locator
• Crosscar inside bed locator
• Front and rear clamps
• Stowage strap
• Locking capability
NOTE:
The Tonneau Cover can be folded up and secured at the front
of the box without removing it completely.
Tri-Fold Tonneau Cover Removal
To remove the Tonneau Cover, follow the next steps:
1. Open the tailgate to gain access to the rear pair ofTonneau Cover clamps located on the underside of the
cover (left and right side).
Clamped Position
NOTE:
If clamp wire is damaged replace immediately.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 179
What to do when an electrical load reduction action
message is present (“Battery Saver On” or “Battery Saver
Mode”)
During a trip:
• Reduce power to unnecessary loads if possible:•Turn off redundant lights (interior or exterior).
•Check what may be plugged in to power outlets +12V,115V AC, USB ports.
•Check HVAC settings (blower, temperature).
•Check the audio settings (volume).
After a trip:
• Check if any aftermarket equipment was installed (addi -
tional lights, upfitter electrical accessories, audio systems,
alarms) and review specifications if any (load and Ignition
Off Draw currents).
• Evaluate the latest driving cycles (distance, driving time and parking time).
• The vehicle should have service performed if the message is still present during consecutive trips and the evaluation
of the vehicle and driving pattern did not help to identify
the cause.WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the instru-
ment panel together with a dedicated message and/or
acoustic signal when applicable. These indications are indic -
ative and precautionary and as such must not be considered
as exhaustive. Always refer to the information in this chapter
in the event of a failure indication. All active telltales will
display first if applicable. The system check menu may
appear different based upon equipment options and current
vehicle status. Some telltales are optional and may not
appear.
Red Warning Lights
— Seat Belt Reminder Warning Light
This warning light indicates when the driver or passenger
seat belt is unbuckled. When the ignition is first placed in the
ON/RUN or ACC/ON/RUN position and if the driver’s
seat belt is unbuckled, a chime will sound and the light will
turn on. When driving, if the driver or front passenger seat
belt remains unbuckled, the Seat Belt Reminder Light will
flash or remain on continuously and a chime will sound.
Refer to “Occupant Restraint Systems” in “Safety” for
further information.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 181
Vehicles equipped with the Anti-Lock Brake System (ABS)
are also equipped with Electronic Brake Force Distribution
(EBD). In the event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light. Immediate
repair to the ABS system is required.
Operation of the Brake Warning Light can be checked by
turning the ignition switch from the OFF position to the ON/
RUN position. The light should illuminate for approximately
two seconds. The light should then turn off unless the
parking brake is applied or a brake fault is detected. If the
light does not illuminate, have the light inspected by an
authorized dealer.
The light also will turn on when the parking brake is applied
with the ignition switch in the ON/RUN position.
NOTE:
This light shows only that the parking brake is applied. It
does not show the degree of brake application. — Hood Open Warning Light
This warning light will illuminate when the hood is ajar/
open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a single chime. — Vehicle Security Warning Light — If Equipped

This light will flash at a fast rate for approximately 15 seconds
when the vehicle security alarm is arming, and then will flash
slowly until the vehicle is disarmed.

— Engine Coolant Temperature Warning Light
This warning light warns of an overheated engine condition.
If the engine coolant temperature is too high, this indicator
will illuminate and a single chime will sound. If the tempera -
ture reaches the upper limit, a continuous chime will sound
for four minutes or until the engine is able to cool: whichever
comes first.
If the light turns on while driving, safely pull over and stop
the vehicle. If the A/C system is on, turn it off. Also, shift the
transmission into NEUTRAL and idle the vehicle. If the
temperature reading does not return to normal, turn the
engine off immediately and call for service.
Refer to “If Your Engine Overheats” in “In Case Of Emer -
gency” for further information.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 193
Onboard Diagnostic System (OBD II) Cybersecurity
Your vehicle is required to have an Onboard Diagnostic
system (OBD II) and a connection port to allow access to
information related to the performance of your emissions
controls. Authorized service technicians may need to access
this information to assist with the diagnosis and service of
your vehicle and emissions system.

For further information, refer to “Cybersecurity” in “Multimedia”.

EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass an
inspection of your vehicle's emissions control system. Failure
to pass could prevent vehicle registration.For states that require an Inspection and Mainte -
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not on
when the engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may not be ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace -
ment. If the OBD II system should be determined not ready
for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which you
can use prior to going to the test station. To check if your
vehicle's OBD II system is ready, you must do the following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.
WARNING!
• ONLY an authorized service technician should connect equipment to the OBD II connection port in order to
read the VIN, diagnose, or service your vehicle.
• If unauthorized equipment is connected to the OBD II connection port, such as a driver-behavior tracking
device, it may:
• Be possible that vehicle systems, including safety related systems, could be impaired or a loss of
vehicle control could occur that may result in an
accident involving serious injury or death.
• Access, or allow others to access, information stored in your vehicle systems, including personal infor -
mation.
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