2018 Ram 4500 Chassis Cab immobilizer

SENTRY KEY
The Sentry Key Immobilizer System prevents unauthor-
ized 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, an Ignition Node Module,
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 will not allow the engine to
crank if an invalid key fob is used to start and operate the
vehicle. The system will shut the engine off in two seconds
if an invalid key fob is used to start the engine.
NOTE:A key fob that has not been programmed is also
considered an invalid key.
During normal operation, after placing the keyless ignition
in 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 addition, if the light begins
to flash after the bulb check, it indicates that someone used an invalid key fob to try to start the engine. Either of these
conditions will result in the engine being shut off after two
seconds.
If the vehicle security light turns on during normal vehicle
operation (vehicle running for longer than 10 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.
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.
All of the key fobs provided with your new vehicle have
been programmed to the vehicle electronics.
32 GETTING TO KNOW YOUR VEHICLE

Customer Key Programming
Programming key fobs may be performed at an authorized
dealer.
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.
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.
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, in- cluding 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.
VEHICLE SECURITY ALARM
The vehicle security alarm monitors the vehicle doors and
ignition for unauthorized operation. When the vehicle
security alarm is activated, interior switches for door locks
are disabled. The system provides both audible and visible
signals for the first three minutes. The horn will sound, the
headlights will turn on, the park lamps and/or turn signals
will flash and vehicle security light will flash repeatedly.
3
GETTING TO KNOW YOUR VEHICLE 33

General Information........................ .182
Glass Cleaning ........................... .424
Grocery Bag Retainer .........................54
Gross Axle Weight Rating .....................293
Gross Vehicle Weight Rating ...................292
Guide, Body Builders .........................7
GVWR ................................. .290
Hazard Driving Through Flowing, Rising, Or Shallow
Standing Water ......................... .317
Hazard Warning Flasher ..................... .320
Headlights .............................. .326
Automatic ..............................72
Cleaning .............................. .420
High Beam ..............................71
High Beam/Low Beam Select Switch ...........71
Passing ................................72
Switch .................................69
Head Restraints ............................55
Heated Mirrors .............................67
High Beam/Low Beam Select (Dimmer) Switch ......71
Hill Descent Control ....................... .174
Hill Descent Control Indicator .................174
Hill Start Assist ........................... .166Hitches
Trailer Towing .......................... .298
Hoisting ................................ .393
HomeLink (Garage Door Opener) ...............102
Hood Prop .............................. .101
Hood Release ............................ .101
Hub Caps ............................... .344
Ignition ..................................27
Key ...................................27
Ignition Key Removal ........................27
Illuminated Entry ...........................78
Immobilizer (Sentry Key) ......................32
Inside Rearview Mirror ...............60, 61, 62, 320
Instrument Cluster ......................... .158
Instrument Panel Lens Cleaning ................423
Integrated Trailer Brake Controls ................302
Interior Appearance Care .....................422
Interior Lights ..............................76
Intermittent

Wipers (Delay Wipers) ...............79
Introduction ................................4
Inverter Outlet (115V) ...................... .127
Jack Operation ........................... .339
12
INDEX 517

Jump Starting............................ .345
Key Fob Panic Alarm .............................22
Programming Additional Key Fobs ..........26, 33
Key Fob Battery Service (Remote Keyless Entry) .....23
Key Fob Programming (Remote Keyless Entry) ......26
Key-In Reminder ............................29
Keyless Enter-N-Go ..................... .37, 242
Lock The Vehicle’s Doors ................451, 472
Passive Entry ............................37
Passive Entry Programming ...........37, 451, 472
Key, Replacement ...........................33
Keys ....................................19
Key, Sentry (Immobilizer) ......................32
Lane Change And Turn Signals .................75
Lane Change Assist ..........................75
Latches ................................. .236
Hood ................................ .101
Lead Free Gasoline ........................ .429
Leaks, Fluid ............................. .236
Life Of Tires ............................. .408
Light Bulbs .............................. .236
Lights .................................. .236AirBag .........................150, 197, 234
Automatic Headlights
......................72
Brake Assist Warning ..................... .172
Brake Warning ......................... .150
Bulb Replacement ....................... .325
Cap Top Clearance ...................... .330
Cargo .................................75
Center Mounted Stop ..................... .328
Courtesy/Reading ..................... .76, 77
Cruise ............................... .159
Daytime Running .........................71
Engine Temperature Warning ................151
Exterior .............................. .236
Fog ........................... .74, 157, 328
Four-Wheel Drive Indicator .................260
Hazard Warning Flasher ...................320
Headlights ..............................69
High Beam ..............................71
High

Beam/Low Beam Select .................71
Hill Descent Control Indicator ...............174
Illuminated Entry .........................78
Interior ............................. .76, 77
Low Fuel ............................. .156
Malfunction Indicator (Check Engine) ..........153
Park ................................. .158
518 INDEX

Automatic Locking Retractor (ALR)...........195
Lap/Shoulder Belt Operation ................187
Lap/Shoulder Belt Untwisting ...............189
Pregnant Women ........................ .194
Seat Belt Extender ....................... .193
Seat Belt Reminder ...................... .184
Seat Belt Maintenance ...................... .422
Seat Belt Reminder ........................ .184
Seat Belts ............................ .184, 234
Adjustable Shoulder Belt ...................190
Adjustable Upper Shoulder Anchorage .........190
Child Restraint ......................... .208
Extender .............................. .193
Front Seat ......................... .184, 187
Inspection ............................. .234
Operating Instructions .....................187
Pregnant Women ........................ .194
Reminder ............................. .150
Untwisting Procedure .....................189
Seats ............................ .43, 45, 46, 48
Adjustment ....................... .43, 46, 48
Easy Entry .......................... .43, 51
Folding Floor ...........................117
Heated .................................43
Memory ............................ .43, 48Power
.................................46
Rear Folding .............................43
Reclining Rear ...........................45
Seatback Release ..........................43
Tilting .................................43
Vented .................................43
Ventilated ...............................43
Security Alarm ......................... .33, 151
Selection Of Coolant (Antifreeze) ...............435
Sentry Key Key Programming .........................33
Sentry Key (Immobilizer) ......................32
Sentry Key Replacement ......................33
Service Assistance ......................... .506
Service

Contract .......................... .508
Service Manuals .......................... .510
Settings, Personal ......................... .144
Shifting ................................ .246
Automatic Transmission ....................248
Transfer Case .......................... .259
Transfer Case, Shifting Into Transfer Case
Neutral (N) ............................ .313
Transfer Case, Shifting Out Of Transfer Case
Neutral (N) ............................ .315
Shift Lever Override ....................... .349
522 INDEX