2021 CHRYSLER 300 immobilizer

14 GETTING TO KNOW YOUR VEHICLE
3. Remove the back cover to access and replace
the battery. When replacing the battery, match
the (+) sign on the battery to the (+) sign on the
inside of the battery clip, located on the back
cover. Avoid touching the new battery with your
fingers. Skin oils may cause battery deterio -
ration. If you touch a battery, clean it with
r u

bbing alcohol.
4. To assemble the key fob case, snap the two h
alves together.
Programming And Requesting Additional
Key Fobs
Programming the key fob may be performed by an
authorized dealer.
NOTE:
Once a key fob is programmed to a vehicle, it
cannot be repurposed and reprogrammed to
another vehicle.
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.
Duplication of key fobs may be performed at an
a u

thorized 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.
NOTE:
When having the Sentry Key Immobilizer system
s e
rviced, bring all vehicle keys with you to an
authorized dealer.
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
i g

nition and a Radio Frequency (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 placing the ignition switch in the ON/RUN
p os

ition, 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 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 electronics, the engine will start
and shut off after two seconds.
WARNING!
The integrated key fob contains a coin cell
battery. Do not ingest the battery; there is a
chemical burn hazard. If the coin cell battery is
swallowed, it can cause severe internal burns
in just two hours and can lead to death.
If you think a battery may have been swal-
lowed or placed inside any part of the body,
s e
ek immediate medical attention.
Keep new and used batteries away from chil -
dren. If the battery compartment does not
c l
ose securely, stop using the product and
keep it away from children.
WARNING!
Always remove the key fobs from the vehicle
and lock all doors when leaving the vehicle
unattended.
Always remember to place the Keyless Enter
‘n Go™ — Ignition in the OFF position.

GETTING TO KNOW YOUR VEHICLE 15
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.
All of the key fobs provided with your new vehicle
ha

ve been programmed to the vehicle electronics
Ú page 254.
IGNITION SWITCH
KEYLESS ENTER ‘N GO™ — IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button as long as
the key fob is in the passenger compartment.
The START/STOP ignition button has several
ope

rating modes that are labeled and will
illuminate when in position. These modes are OFF,
ACC, ON/RUN, and START.
START/STOP Ignition Button

The push button ignition can be placed in the
f ol

lowing modes:
OFF
The engine is stopped.
Some electrical devices (e.g. central locking,
alarm, etc.) are still available.
ACC
Engine is not started.
Some electrical devices are available (e.g.
power windows). ON/RUN

Driving position.
All electrical devices are available (e.g. climate
controls, etc.).
START
The engine will start (when foot is on the brake
pedal).
NOTE:
If the ignition switch does not change the mode by
p u
shing the button, the key fob may have a low or
depleted battery. In this situation, a back up
method can be used to operate the ignition switch.
Put the nose side (side opposite of the emergency
key) of the key fob against the START/STOP
ignition button and push to operate the ignition
switch.

Depleted Key Fob Battery Procedure

CAUTION!
The Sentry Key Immobilizer system is not
compatible with some aftermarket Remote Start
systems. Use of these systems may result in
vehicle starting problems and loss of security
protection.
1 — OFF
2 — ACC
3 — ON/RUN
2

261
Remote Keyless Entry
Arm The Alarm.............................................18Unlatch The Trunk.......................................13Remote StartingExit Remote Start Mode..............................17Uconnect Customer Programmable
Features..................................................17Uconnect Settings.......................................17Remote Trunk Release....................................60Replacement Bulbs.......................................221Replacement Keys...........................................14Replacement Tires.........................................235Reporting Safety Defects...............................253Restraints, Child............................................166Restraints, Head.......................................32, 33Rocking Vehicle When Stuck.........................192Rotation, Tires...............................................240
S
Safety Checks Inside Vehicle.........................176Safety Checks Outside Vehicle......................177Safety Defects, Reporting..............................253Safety Information, Tire.................................225Safety Tips.....................................................176Safety, Exhaust Gas.......................................178Schedule, Maintenance.......................195, 196Seat Belt Reminder.........................................73Seat Belts............................................152, 176Adjustable Shoulder Belt...........................156
Adjustable Upper Shoulder Anchorage......156
Adjustable Upper Shoulder Belt
Anchorage............................................156Automatic Locking Retractor (ALR)...........157Child Restraints........................................166Energy Management Feature...................157Extender...................................................156Front Seat...............................152, 153, 155Inspection.................................................176Lap/Shoulder Belt Operation....................155Lap/Shoulder Belt Untwisting...................155Lap/Shoulder Belts..................................153Operating Instructions..............................155Pregnant Women......................................157Pretensioners...........................................157Rear Seat.................................................153Reminder..................................................152Seat Belt Extender....................................156Seat Belt Pretensioner.............................157Untwisting Procedure...............................155Seat Belts Maintenance...............................243Seats.................................................27, 29, 30Adjustment...........................................27, 29Easy Entry....................................................30Head Restraints....................................32, 33Heated.........................................................30Height Adjustment.......................................28Power..........................................................28Rear Folding................................................27Seatback Release.......................................27
Tilting....................................................27, 28
Vented.........................................................31Ventilated....................................................31Security Alarm...........................................18, 74Arm The System...........................................18Selection Of Coolant (Antifreeze)..................249Sentry Key (Immobilizer)..................................14Sentry Key Replacement..................................14Service Assistance........................................251Service Contract............................................252Service Manuals...........................................253Shifting.............................................................85Automatic Transmission.......................85, 87Shoulder Belts..............................................153Side View Mirror Adjustment............................35Signals, Turn...................................43, 78, 178Snow Chains (Tire Chains)............................239Snow Tires....................................................236Spare Tires..................................183, 236, 237Spark Plugs...................................................249Specifications Fuel (Gasoline)..........................................249Oil.............................................................249Speed ControlAccel/Decel.................................................93Accel/Decel (ACC Only)................................97Cancel..........................................................94Resume.......................................................94Set...............................................................93Speed Control (Cruise Control)...........92, 93, 94
Sport Mode......................................................91
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