2019 Ram 3500 service

30 GETTING TO KNOW YOUR VEHICLE
SENTRY KEY
The Sentry Key Immobilizer system prevents unauthorized
vehicle operation by disabling the engine. The system does
not need to be armed or activated. Operation is automatic,
regardless of whether the vehicle is locked or unlocked.
The system uses a key fob, keyless push button ignition and
a RF receiver to prevent unauthorized vehicle operation.
Therefore, only key fobs that are programmed to the vehicle
can be used to start and operate the vehicle. The system
cannot reprogram a key fob obtained from another vehicle.
After turning the ignition switch to the ON/RUN position,
the vehicle security light will turn on for three seconds for a
bulb check. If the light remains on after the bulb check, it
indicates that there is a problem with the electronics. In addi-
tion, if the light begins to flash after the bulb check, it indi -
cates that someone attempted to start the engine with an
invalid key fob. In the event that a valid key fob is used to
start the engine but there is an issue with the vehicle elec -
tronics, the engine will start and shut off after two seconds. If the vehicle security light turns on during normal vehicle
operation (vehicle running for longer than ten seconds), it
indicates that there is a fault in the electronics. Should this
occur, have the vehicle serviced as soon as possible by an
authorized dealer.
All of the key fobs provided with your new vehicle have
been programmed to the vehicle electronics.
Key Programming
Programming key fobs may be performed at an authorized
dealer.
CAUTION!
The Sentry Key Immobilizer system is not compatible
with some aftermarket remote starting systems. Use of
these systems may result in vehicle starting problems
and loss of security protection.

GETTING TO KNOW YOUR VEHICLE 31
Replacement Keys
NOTE:
Only key fobs that are programmed to the vehicle electronics
can be used to start and operate the vehicle. Once a key fob
is programmed to a vehicle, it cannot be programmed to any
other vehicle.
NOTE:
Duplication of key fobs may be performed at an authorized
dealer. This procedure consists of programming a blank key
fob to the vehicle electronics. A blank key fob is one that has
never been programmed.
When having the Sentry Key Immobilizer System serviced,
bring all vehicle keys with you to an authorized dealer.
General Information
The following regulatory statement applies to all radio
frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and with
Industry Canada license-exempt RSS standard(s). 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,including interference that may cause undesired opera -
tion.
NOTE:
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
CAUTION!
• Always remove the key fobs from the vehicle and lock all doors when leaving the vehicle unattended.
• For vehicles equipped with Keyless Enter-N-Go — Ignition, always remember to place the ignition in the
OFF position.
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GETTING TO KNOW YOUR VEHICLE 39
Automatic Door Locks — If Equipped
The auto door lock feature default condition is enabled.
When enabled, the door locks will lock automatically when
the vehicle's speed exceeds 15 mph (24 km/h). The auto door
lock feature can be enabled or disabled by an authorized
dealer per written request of the customer. Please see an
authorized dealer for service.
Automatic Doors Unlock — If Equipped

This feature unlocks all of the doors of the vehicle when either front
door is opened. This will occur only after the vehicle has been
shifted into the PARK position after the vehicle has been driven
(shifted out of PARK and all doors closed).

Automatic Doors Unlock Programming — If Equipped
The Automatic Doors Unlock feature can be enabled or
disabled as follows:
• For vehicles not equipped with a touchscreen radio, referto “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.

• For vehicles equipped with a touchscreen radio, refer to “Ucon -
nect Settings” in “Multimedia” for further information.
NOTE:
Use the Auto Unlock Doors feature in accordance with local laws.

Child-Protection Door Lock
To provide a safer environment for children riding in the rear
seat, the rear doors (if equipped) of your vehicle have the
Child-Protection Door Lock system.
Child-Protection Door Lock Location
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GETTING TO KNOW YOUR VEHICLE 53
NOTE:
The head restraints should only be removed by qualified
technicians, for service purposes only. If either of the head
restraints require removal, see an authorized dealer.
Rear Head Restraint Adjustment
The rear seats are equipped with adjustable and removable
head restraints. To raise the head restraint, pull upward on
the head restraint. To lower the head restraint, push the
adjustment button located on the base of the head restraint
and push downward on the head restraint.Release/Adjustment Buttons
NOTE:
• The rear center head restraint (Crew Cab) has only one adjustment position that is used to aid in the routing of a
tether. Refer to “Occupant Restraint Systems” in “Safety”
for further information.
• Do not reposition the head restraint 180 degrees to the incorrect position in an attempt to gain additional clear -
ance to the back of the head.
WARNING!
• All occupants, including the driver, should not operate a vehicle or sit in a vehicle’s seat until the head
restraints are placed in their proper positions in order
to minimize the risk of neck injury in the event of a
crash.
• Head restraints should never be adjusted while the vehicle is in motion. Driving a vehicle with the head
restraints improperly adjusted or removed could cause
serious injury or death in the event of a collision.
1 — Release Button
2 — Adjustment Button
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92 GETTING TO KNOW YOUR VEHICLE
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. OAT
coolant (conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration of
coolant is used. Use of the Air Recirculation mode during
Winter months is not recommended, because it may cause
window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of service (i.e.,
vacation) for two weeks or more, run the air conditioning
system at idle for about five minutes, in fresh air with the
blower setting on high. This will ensure adequate system
lubrication to minimize the possibility of compressor
damage when the system is started again. Window Fogging
Vehicle windows tend to fog on the inside in mild, rainy,
and/or humid weather. To clear the windows, select Defrost
or Mix mode and increase the front blower speed. Do not use
the Recirculation mode without A/C for long periods, as
fogging may occur.
CAUTION!
Failure to follow these cautions can cause damage to the
heating elements:
• Use care when washing the inside of the rear window. Do not use abrasive window cleaners on the interior
surface of the window. Use a soft cloth and a mild
washing solution, wiping parallel to the heating
elements. Labels can be peeled off after soaking with
warm water.
• Do not use scrapers, sharp instruments, or abrasive window cleaners on the interior surface of the window.
• Keep all objects a safe distance from the window.

GETTING TO KNOW YOUR VEHICLE 93
Outside Air Intake
Make sure the air intake, located directly in front of the wind-
shield, is free of obstructions, such as leaves. Leaves collected
in the air intake may reduce airflow, and if they enter the
plenum, they could plug the water drains. In Winter months,
make sure the air intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust and pollen from
the air. Contact an authorized dealer to service your cabin air
filter, and to have it replaced when needed. Operating Tips Chart
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GETTING TO KNOW YOUR INSTRUMENT PANEL 161
Base / Midline Instrument Cluster Descriptions
1. Tachometer•Indicates the engine speed in revolutions per minute(RPM x 1000).
2. Voltmeter
•When the vehicle is in the RUN state, the gauge indi -
cates the electrical system voltage. The pointer should
stay within the normal range if the battery is charged.
If the pointer moves to either extreme left or right and
remains there during normal driving, the electrical
system should be serviced.
3. Instrument Cluster Display
•When the appropriate conditions exist, this displayshows the instrument cluster display messages. Refer
to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information. 4. Oil Pressure Gauge
•The pointer should always indicate the oil pressurewhen the engine is running. A continuous high or low
reading under normal driving conditions may indicate
a lubrication system malfunction. Immediate service
should be obtained from an authorized dealer.
NOTE:
In vehicles equipped with Stop/Start, an oil pressure indica -
tion of zero is normal during an Autostop.
5. Speedometer
•Indicates vehicle speed.
6. Fuel Gauge
•The pointer shows the level of fuel in the fuel tank whenthe ignition is in the ON/RUN position.
• The fuel pump symbol points to the side of the vehicle where the fuel door is located.
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162 GETTING TO KNOW YOUR INSTRUMENT PANEL
7. Temperature Gauge•The gauge pointer shows engine coolant temperature.The pointer positioned within the normal range indi -
cates that the engine cooling system is operating satis -
factorily.
•The gauge pointer will likely indicate a higher tempera -
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.WARNING!
A hot engine cooling system is dangerous. You or others
could be badly burned by steam or boiling coolant. You
may want to call an authorized dealer for service if your
vehicle overheats. If you decide to look under the hood
yourself, see “Servicing And Maintenance.” Follow the
warnings under the Cooling System Pressure Cap
paragraph.
CAUTION!
Driving with a hot engine cooling system could damage
your vehicle. If the temperature gauge reads “H,” pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back into
the normal range. If the pointer remains on the “H,” turn
the engine off immediately and call an authorized dealer
for service.