2023 Jeep Wrangler 4xe Keys and Smart Key Guidelines

The 2023 Jeep Wrangler 4xe’s advanced key and smart key technologies offer a completely new way to get into and use a car. If a driver has a sophisticated keyless entry system, they can easily open and lock their Wrangler 4xe with just a touch. This makes daily driving easier. The Smart Key Operations go one step further in making things easier by letting users start the engine with the push of a button, instead of having to turn the keys like they usually do. This makes the whole experience better for the user and fits with the Wrangler 4xe’s dedication to being current and new in the off-road vehicle world. With these key and smart features, the 2023 Jeep Wrangler 4xe changes the way you drive by combining technology with the tough and active spirit that makes Jeep famous.

KEYS

KEY FOB

Your vehicle is equipped with a key fob that supports Passive Entry, Remote Keyless Entry (RKE), Keyless Enter ‘n Go™ (if equipped), and Remote Start (if equipped). The key fob allows you to lock or unlock the doors and swing the gate from distances up to approximately 66 ft (20 m). The key fob does not need to be pointed at the vehicle to activate the system. The key fob also contains a mechanical key.

NOTE:

• The key fob’s wireless signal may be blocked if the key fob is located next to a mobile phone, laptop, or other electronic device.
• This may result in poor performance. With the ignition on and the vehicle moving at 2 mph (4 km/h), all RKE commands are disabled.

WARNING!
Push the Mechanical Key Release Button only with the key fob facing away from your body, especially your eyes and objects that may be damaged, such as clothing.

CAUTION!
The electrical components inside of the key fob may be damaged if the key fob is subjected to strong electrical shocks. To ensure complete efficiency of the electronic devices inside of the key fob, avoid exposing the key fob to direct sunlight.

Key Fob

1. Mechanical Key Release Button
2. LED Indicator
3. Unlock Button
4. Lock Button
5. Remote Start Button
6. Panic Button

NOTE:

• In case the ignition switch does not change with the push of a button, the key fob may have a low or fully depleted battery. A low-key fob battery condition may be indicated by a message in the instrument cluster display, or by the LED light on the key fob. If the LED key fob light no longer illuminates from the key fob button push, then the key fob battery requires replacement.
• Improper disposal of key fob batteries may be harmful to the environment. Please see an authorized dealer for proper battery disposal.

To Lock/Unlock The Doors And Swing Gate
Push and release the unlock button on the key fob once to unlock the driver’s door, or twice to unlock all the doors and swing gate. To lock all the doors, push the lock button once.
When the doors are unlocked, the turn signals will flash. When the doors are locked, the turn signals will flash and the horn will chirp.

NOTE:
All doors can be programmed to unlock on the first push of the unlock button through the Uconnect Settings

Key Left Vehicle Feature
If a valid key fob is no longer detected inside the vehicle while the vehicle’s ignition system is in the ON/RUN or START position, the message “Key Fob Has Left The Vehicle” will be shown in the instrument cluster display along with an interior chime. An exterior audible and visual alert will also be activated to warn the driver.
The vehicle’s horn will rapidly chirp three times along with a single flash of the vehicle’s exterior lights.

NOTE:

• The doors have to be open and then closed for the vehicle to check for the presence of a key fob; the Key Left Vehicle feature will not activate until all of the doors are closed.
• These alerts will not be activated in situations where the vehicle’s engine is left running with the key fob inside.

Replacing The Battery In The Key Fob
The recommended replacement battery is CR2450.

NOTE:

• Customers are recommended to use a battery obtained from Mopar®. Aftermarket coin battery dimensions may not meet the original OEM coin battery dimensions.
• Perchlorate Material — special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate for further information.
• Do not touch the battery terminals that are on the back housing or the printed circuit board.
• When a key fob battery is low, a warning will be indicated on the vehicle’s instrument cluster, and the fob LED will no longer illuminate with a button press.

1. Remove the back cover of the fob by inserting a flat-blade screwdriver into the slot on the bottom of the fob. Pry until the cover unsnaps being careful not to damage the seal. Proceed counterclockwise to pry the remaining snaps until the battery cover can be removed.
2. Remove the depleted battery by inserting a small flat-blade screwdriver into the battery removal slot and sliding the battery forward and up being careful not to damage the electronic board underneath.
3. Install the new battery into the key fob, making sure the positive (+) side is facing up. Slide the battery until it is seated securely below the tabs.
4. Reassemble the back cover making sure it is properly aligned before snapping it back in place.

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 swallowed or placed inside any part of the body, seek immediate medical attention.
• Keep new and used batteries away from children. If the battery compartment does not close securely, stop using the product and keep it away from children.

Programming And Requesting Additional Key Fobs
Programming the key fob may be performed by an authorized dealer.

NOTE:

• Once a key fob is programmed into a vehicle, it cannot be repurposed and reprogrammed into 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.

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 when exiting 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. A blank key fob has never been programmed.

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.
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 into 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 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 attempted to start the engine with an invalid key fob. If 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.
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 Start 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 Ú page 381.

NOTE:
A key fob that has not been programmed is also considered an invalid key.

IGNITION SWITCH

KEYLESS ENTER ‘N GO™ IGNITION
If applicable, refer to the “Hybrid Supplement” for additional information.
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, RUN, and START.

START/STOP Ignition Button

1. OFF
2. ACC
3. RUN

The push-button ignition can be placed in the following modes:

OFF

• The engine is stopped.
• Some electrical devices (e.g. power locks, alarms, etc.) are available.

ACC

•  The engine is not started.
• Some electrical devices (e.g. climate controls, heated seats, etc.) are available.

RUN

• Driving position.
• All electrical devices are available

START

• The engine will start.

NOTE:
In case the ignition switch does not change with the push of the START/STOP ignition button, the key fob may have a low or depleted battery. In this situation, a backup method can be used to operate the ignition switch. Put the nose side of the key fob (side with the mechanical flip key) against the START/STOP ignition button and push to operate the ignition switch.

CAUTION!

• Do not press the mechanical key against the START/STOP ignition button.
• Do not use sharp metal objects (e.g. screwdriver etc.) to pry the button out of the ignition switch. This button comes as an assembly and is not removable. This can damage the silicone shield.

Backup Starting Method
Do Not Use Mechanical Key

WARNING!

• When exiting the vehicle, always remove the key fob from the vehicle and lock your vehicle.
• Never leave children alone in a vehicle, or with access to an unlocked vehicle.
• Allowing children to be in a vehicle unattended is dangerous for several reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal, or gear selector.
• Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave the Keyless Enter ‘n Go™ Ignition in the ON/RUN position. A child could operate power windows, and other controls, or move the vehicle.
• Do not leave children or animals inside parked vehicles in hot weather. Interior heat buildup may cause serious injury or death.

CAUTION!
An unlocked vehicle is an invitation for thieves. Always remove the key fob from the vehicle and lock all doors when leaving the vehicle unattended.

NOTE:

• For more information on normal starting,
• When opening the driver’s door with the ignition in the ON/RUN position (engine not running), a chime will sound to remind you to place the ignition in the OFF position. In addition to the chime, the message will display “Ignition Or Accessory On” in the cluster.

REMOTE START — IF EQUIPPED (GASOLINE)
If applicable, refer to the “Hybrid Supplement” for additional information.
This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of 328 ft (100 m). Remote Start is used to defrost windows in cold weather and to reach a comfortable climate in all ambient conditions before the driver enters the vehicle.

NOTE:

• The vehicle must be equipped with an automatic transmission to be equipped with Remote Start.
•  Obstructions between the vehicle and key fob may reduce this range

WARNING!

• Do not start or run an engine in a closed garage or confined area. Exhaust gas contains carbon monoxide (CO) which is odorless and colorless. Carbon monoxide is poisonous and can cause serious injury or death when inhaled.
• Keep key fobs away from children. Operation of the Remote Start system, windows, door locks, or other controls could cause serious injury or death.

HOW TO USE REMOTE START
Push and release the Remote Start button on the key fob twice within five seconds. The vehicle doors and swing gate will lock, the turn signals will flash twice, and the horn will chirp twice. Pushing the Remote Start button again will shut the engine off.

NOTE:

• With Remote Start, the engine will only run for 15 minutes.
• Remote Start can only be used twice.
• If an engine fault is present or the fuel level is low, the vehicle will start and then shut down in 10 seconds.
• The park lamps will turn on and remain on during Remote Start mode.
• For security, power window operation is disabled when the vehicle is in the Remote Start mode.
• The ignition must be placed in the ON/RUN position before the Remote Start sequence can be repeated for a third cycle.

All of the following conditions must be met before the engine will remotely start:

• Gear selector in PARK
• Doors closed
• Hood closed
• Swing gate closed
• Hazard switch off
• The brake switch is inactive (brake pedal not pressed)
• Battery at an acceptable charge level
• The panic button was not pushed
• System not disabled from previous Remote Start event
• Vehicle Security system indicator flashing
• Ignition in the OFF position
• Fuel level meets minimum requirement
• All removable doors must not be removed
• Malfunction Indicator Light (MIL) not illuminated

WARNING!

• Do not start or run an engine in a closed garage or confined area. Exhaust gas contains carbon monoxide (CO) which is odorless and colorless. Carbon monoxide is poisonous and can cause serious injury or death when inhaled.
• Keep key fobs away from children. Operation of the Remote Start system, windows, door locks, or other controls could cause serious injury or death.

TO EXIT REMOTE START MODE
To drive the vehicle after starting the Remote Start system, either push and release the unlock button on the key fob to unlock the doors, or unlock the vehicle using Keyless Enter ‘n Go™ — Passive Entry via the door handles, and disarm the Vehicle Security system (if equipped). Then, before the end of the 15-minute cycle, push and release the START/STOP ignition button.
The Remote Start system will turn the engine off if the Remote Start button on the key fob is pushed again, or if the engine is allowed to run for the entire 15-minute cycle. Once the ignition is placed in the ON/RUN position, the climate controls will resume previously set operations (temperature, blower control, etc.).

NOTE:

• To avoid unintentional shutdowns, the system will be disabled for two seconds after receiving a valid Remote Start request.
• For vehicles equipped with the Keyless Enter ‘n Go™ — Passive Entry feature, the message “Remote Start Active — Push Start Button” will display in the instrument cluster display until you push the START/STOP ignition button.

REMOTE START FRONT DEFROST ACTIVATION — IF EQUIPPED
When Remote Start is active, and the outside ambient temperature is 40°F (4.5°C) or below, the system will automatically activate the front defrost for 15 minutes or less. The time is dependent on the ambient temperature. Once the timer expires, the system will automatically adjust the settings depending on ambient conditions. See “Remote Start Comfort Systems — If Equipped” in the next section for detailed operation.

REMOTE START COMFORT SYSTEMS — IF EQUIPPED
When Remote Start is activated, the front and rear defrost will automatically turn on in cold weather. The heated steering wheel and driver heated seat feature will turn on if programmed in the Comfort menu screen within Uconnect Settings Ú page 184. In warm weather, the driver-vented seat feature will automatically turn on when the Remote Start is activated if programmed in the Comfort menu screen. The vehicle will adjust the climate control settings depending on the outside ambient temperature.

Automatic Temperature Control (ATC) — If Equipped
The climate controls automatically adjust to an optimal temperature and mode, dependent on the outside ambient temperature. When the ignition is placed in the ON/RUN position, the climate controls will resume their previous settings.

Manual Temperature Control (MTC) — If Equipped

• In ambient temperatures of 40°F (4.5°C) or below, the Remote Start Canceled — Door Open climate settings will default to maximum heat, with Remote Start Canceled — Hood Open fresh air entering the cabin. If the front defrost timer Remote Start Canceled — Fuel Low
• In ambient temperatures from 40°F (4.5°C) to 78°F (26°C), the climate settings will be based on the last settings selected by the driver.
• In ambient temperatures of 78°F (26°C) or above, the climate settings will default to MAX A/C, Bi-Level mode, with Recirculation on.

For more information on ATC, MTC, and climate control settings, see

NOTE:
These features will stay on through the duration of Remote Start, or until the ignition is placed in the ON/RUN position. The climate control settings will change, and exit the automatic defaults if manually adjusted by the driver while the vehicle is in Remote Start mode. This includes turning the climate controls off using the OFF button.

REMOTE START WINDSHIELD WIPER DE-ICER ACTIVATION — IF EQUIPPED
When Remote Start is active and the outside ambient temperature is less than 33°F (0.6°C), the Windshield Wiper De-Icer will activate. Exiting Remote Start will resume its previous operation. If the Windshield Wiper De-Icer is active, the timer and operation will continue.

REMOTE START CANCEL MESSAGE
One of the following messages will display in the instrument cluster if the vehicle fails to remote start or exits Remote Start prematurely:

• Remote Start Canceled — Door Open
• Remote Start Canceled — Hood Open
• Remote Start Canceled — Fuel Low
• Remote Start Canceled — Swing Gate Open
• Remote Start Canceled — Time Expired
• Remote Start Disabled — Start Vehicle To Reset

The message will stay active until the ignition is placed in the ON/RUN position.

REMOTE START — IF EQUIPPED (DIESEL)

This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of approximately 300 ft (91 m). Remote Start is used to defrost windows in cold weather and to reach a comfortable climate in all ambient conditions before the driver enters the vehicle.

NOTE:

• The vehicle must be equipped with an automatic transmission to be equipped with Remote Start.
• Obstructions between the vehicle and the key fob may reduce this range.
• The Remote Start system will wait for the Wait To Start Indicator Light Ú page 116 to extinguish before cranking the engine. This allows time for the engine preheat cycle to heat the cylinder air and is normal in cold weather.

WARNING!

• Do not start or run an engine in a closed garage or confined area. Exhaust gas contains carbon monoxide (CO) which is odorless and colorless. Carbon monoxide is poisonous and can cause serious injury or death when inhaled.
• Keep key fobs away from children. Operation of the Remote Start system, windows, door locks, or other controls could cause serious injury or death.

HOW TO USE REMOTE START
Push and release the Remote Start button on the key fob twice within five seconds. The vehicle doors and swing gate will lock, the turn signals will flash twice, and the horn will chirp twice. Pushing the Remote Start button again will shut the engine off.

NOTE:

• With Remote Start, the engine will only run for
  15 minutes.
• Remote Start can only be used twice.
• If an engine fault is present or the fuel level is low, the vehicle will start and then shut down in 10 seconds.
• The park lamps will turn on and remain on during Remote Start mode.
• For security, power window operation is disabled when the vehicle is in the Remote Start mode.
• The ignition must be placed in the ON/RUN position before the Remote Start sequence can be repeated for a third cycle.

All of the following conditions must be met before the engine will remotely start:

• Gear selector in PARK
• Doors closed
• Hood closed
• Swing gate closed
• Hazard switch off
• The brake switch is inactive (brake pedal not pressed)
• Battery at an acceptable charge level
• The panic button was not pushed
• Fuel meets the minimum requirement
• System not disabled from previous Remote Start event
• The vehicle Security system is not active
• Malfunction Indicator Light (MIL) is not illuminated
• Water In the Fuel Indicator Light is not illuminated
• Wait To Start Indicator Light is not illuminated

WARNING!

• Do not start or run an engine in a closed garage or confined area. Exhaust gas contains carbon monoxide (CO) which is odorless and colorless. Carbon monoxide is poisonous and can cause serious injury or death when inhaled.
• Keep key fobs away from children. Operation of the Remote Start system, windows, door locks, or other controls could cause serious injury or death.

 

FAQs

Useful Link

View Full PDF: 2023 Jeep Wrangler 4xe Owner’s Manual | Auto User Guide

2023 Jeep Wrangler 4xe Alarm System | How To Use