2021 DODGE DURANGO immobilizer

16GETTING TO KNOW YOUR VEHICLE

Key Fob Battery Replacement

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
rubbing alcohol.
4. To assemble the key fob case, snap the two halves 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. Duplication of key fobs may be performed at an
authorized dealer. This procedure consists of
programming a blank key fob to the vehicle
electronics.
NOTE:
When having the Sentry Key Immobilizer system
serviced, bring all vehicle keys with you to an
authorized dealer.
Keys must be ordered to the correct key cut to
match the vehicle locks.
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.
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,
seek immediate medical attention.
Keep new and used batteries away from chil
-
dren. If the battery compartment does not
close 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.
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 VEHICLE17
The system uses a key fob, keyless push button
ignition 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 will shut the engine off in two seconds if an
incorrect key fob is used to start the engine.
After placing the 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 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. All of the key fobs provided with your new vehicle
have been programmed to the vehicle electronics
Ú
page 327.
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
operating 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
following modes:
OFF
The engine is stopped
Some electrical devices (e.g. power locks,
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 position does not change with a push
of the ignition button, and the instrument cluster
display message “Key Fob Not Detected” is being
displayed, 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 of the key fob (side opposite of the emergency
key) against the START/STOP ignition button and
push to operate the ignition switch.
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.
1 — OFF
2 — ACC
3 — ON/RUN
2

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331
Fuel
............................................................... 318Additives................................................... 319Clean Air.................................................... 319Economy Mode.......................................... 107Ethanol...................................................... 319Gasoline.................................................... 318Materials Added........................................ 319Methanol................................................... 319Octane Rating........................................... 318Requirements................................. 318, 321Specifications............................................ 322Tank Capacity............................................ 321Fueling........................................................... 140Fuses............................................................. 286
G
Garage Door Opener (HomeLink).................... 45Gasoline, (Fuel)............................................. 318Gasoline, Clean Air........................................ 319Gasoline, Reformulated................................. 319Gear Ranges.................................................. 108Getting to Know Your Instrument Cluster........ 82Glass Cleaning............................................... 316Gross Axle Weight Rating............................... 143Gross Vehicle Weight Rating.......................... 142GVWR............................................................ 141
H
Hazard Warning Flashers.............................. 243Head Restraints............................................... 39Headlights Automatic.................................................... 50Cleaning................................................... 314High Beam/Low Beam Select Switch.......... 49Lights On Reminder..................................... 51On With Wipers............................................ 50Passing........................................................ 50Heated Mirrors................................................. 44Heated Seats................................................... 37Heated Steering Wheel.................................... 27Heater, Engine Block.................................... 104Hill Start Assist.............................................. 193HitchesTrailer Towing........................................... 145HomeLink (Garage Door Opener)..................... 45Hood Prop........................................................ 74Hood Release.................................................. 74
I
Ignition............................................................. 17Key Fob Battery Low Or Dead...................... 17Key Fob Not Detected................................. 17Keyless Ignition........................................... 17Keyless Push Button................................... 17Push Button Ignition.................................... 17Switch.......................................................... 17
Immobilizer (Sentry Key)..................................16Indicator lightBlue.............................................................98Green...........................................................97White...........................................................98Yellow..........................................................97Inside Rearview Mirror.................... 42, 43, 243Instrument Cluster....................................82, 83Display.................................................. 83, 86Menu Items.................................................87Instrument Cluster DisplayAudio...........................................................88Driver Assist.................................................88Fuel Economy..............................................88Messages....................................................88Screen Setup...............................................89Speedometer...............................................87Stop Start....................................................88Trailer Tow...................................................88Trip..............................................................88Vehicle Info..................................................87Instrument Panel Lens Cleaning................... 315Integrated Trailer Brake Control.................... 149Interior And Instrument Lights.........................52Interior Appearance Care.............................. 315Interior Lights...................................................52Intermittent Wipers (Delay Wipers)..................53InverterPower...........................................................70iPod/USB/MP3 Control....................................67
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332 J
Jack Location
................................................. 248Jack Operation............................................... 251Jacking And Tire Changing Instructions......... 247Jacking Instructions....................................... 251Jump Starting................................................ 255
K
Key Fob........................................................... 14Arm The System.......................................... 21Disarm The System..................................... 21Programming Additional Key Fobs.............. 16Key Fob Battery Service
(Remote Keyless Entry)................................... 15Key Fob Programming
(Remote Keyless Entry)................................... 16Keyless Enter 'n Go™ Passive Entry............................................... 23Passive Entry Programming......................... 23Keys................................................................. 14Replacement............................................... 16Sentry (Immobilizer).................................... 16
L
Lane Change Assist......................................... 51LaneSense.................................................... 136Lap/Shoulder Belts....................................... 206Latches.......................................................... 241Hood........................................................... 74Lead Free Gasoline........................................ 318
Leaks, Fluid.................................................. 241Life Of Tires................................................... 305Liftgate............................................................ 75Liftgate Window Wiper/Washer....................... 55Light Bulbs.................................................... 241Lights............................................................ 241Adaptive Cruise Control............................... 97Air Bag...................................... 91, 211, 240All Wheel Drive............................................ 97Automatic Headlights.................................. 50Brake Assist Warning............................... 193Brake Warning............................................. 91Bulb Replacement........................... 293, 294Cargo........................................................... 76Center Mounted Stop............................... 295Cruise................................................... 97, 98Daytime Running......................................... 49Dimmer Switch, Headlight........................... 48Electric Power Steering Fault....................... 92Electronic Stability Control........................... 94Electronic Stability Program(ESP)Indicator.................................................. 93Exterior...............................................48, 241Fog.....................................................97, 294Forward Collision Warning........................... 97Hazard Warning Flasher........................... 243Headlights On With Wipers.......................... 50High Beam................................................... 98High Beam/Low Beam Select...................... 49Hood Open.................................................. 93
Interior.........................................................52LaneSense............................................ 97, 98Lights On Reminder.....................................51Low Fuel......................................................96Low Washer Fluid........................................95Malfunction Indicator (Check Engine)..........94NEUTRAL.....................................................97Oil Temperature...........................................93Park......................................................50, 97Passing........................................................50Reading.......................................................52Rear Servicing.......................................... 294Rear Tail Lamps........................................ 294Seat Belt Reminder.....................................91Security Alarm.............................................94Service............................................. 293, 294Service Adaptive Cruise Control...................96Service AWD................................................96Service Forward Collision Warning...............96Service Stop Start System...........................96Side Marker.............................................. 294Snow Mode..................................................97Sport Mode..................................................98Stop Start Active..........................................98Tow Mode....................................................98Traction Control........................................ 193Trailer Brake Disconnected.........................93Transmission Temperature..........................93Turn Signals....................... 48, 98, 241, 294Vanity Mirror................................................43

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335
Seat Belt Pretensioner
.............................. 209Untwisting Procedure................................ 208Seat Belts Maintenance................................ 315Seats.......................................... 29, 35, 37, 38Adjustment............................. 29, 30, 35, 37Easy Entry................................................... 36Heated................................................. 37, 38Memory....................................................... 28Rear Folding......................................... 29, 31Reclining..................................................... 30Seatback Release....................................... 30Tilting................................................... 29, 30Vented......................................................... 38Ventilated.................................................... 38Security Alarm Arm The System.......................................... 21Disarm The System..................................... 21Security System........................................ 21, 94Sentry Key (Immobilizer).................................. 16Sentry Key Replacement................................. 16Service Assistance......................................... 324Service Contract............................................ 325Service Manuals............................................ 327Shifting.......................................................... 106Automatic Transmission.................. 106, 108Shoulder Belts............................................... 206Signals, Turn..................................98, 241, 294Snow Chains (Tire Chains)............................. 310Snow Tires..................................................... 307Spare Tires................................. 249, 307, 308
Speed Control Accel/Decel........................... 120Accel/Decel (ACC Only)............................. 125Cancel...................................................... 121Resume.................................................... 121Set............................................................ 120Speed Control (Cruise Control)... 119, 120, 121Starting......................................................... 101Button......................................................... 17Cold Weather............................................ 104Engine Block Heater................................. 104Engine Fails To Start................................. 103Remote........................................................ 18Starting And Operating.................................. 101Starting Procedures...................................... 101Steering........................................................... 27Power....................................................... 117Tilt Column.................................................. 27Wheel, Heated............................................. 27Wheel, Tilt.................................................... 27Steering Wheel Audio Controls..................... 178Steering Wheel Mounted Sound
System Controls............................................ 178Storage............................................................ 64Storage, Vehicle......................................63, 313Storing Your Vehicle...................................... 313Sun Roof................................................... 73, 74Sun Visor......................................................... 43Sunglasses Storage......................................... 65Sunshade Operation........................................ 73Sway Control, Trailer..................................... 195
Symbol Glossary...............................................10Synthetic Engine Oil...................................... 272SystemVehicle Security...........................................21System, Remote Starting.................................18
T
Telescoping Steering Column...........................27Temperature Control, Automatic (ATC).............62Tie Down Hooks, Cargo....................................77Tilt Steering Column.........................................27Tire And Loading Information Placard........... 300Tire Markings................................................ 295Tire Safety Information.................................. 295Tires.................................. 241, 303, 307, 312Aging (Life Of Tires)................................... 305Air Pressure.............................................. 303Chains...................................................... 310Changing.................................................. 247Compact Spare......................................... 307General Information........................ 303, 307High Speed............................................... 304Inflation Pressure..................................... 303Life Of Tires.............................................. 305Load Capacity.................................. 300, 301Pressure Monitoring System(TPMS)........................................... 95, 201Quality Grading......................................... 312Radial....................................................... 304Replacement............................................ 306
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