2025 Fiat 500e Keys and Doors User Guide
This Guide covers 2025 Fiat 500e Keys and Doors. Discover key fob, smart entry, and door locking technologies that improve electric car security, convenience, and access.
2023 Fiat 500X Specs, Price, Features, Mileage (Brochure)
KEYS
KEY FOB
Your vehicle is equipped with a key fob which supports Passive Entry, Remote Keyless Entry (RKE) and Keyless Enter ‘n Go™. The key fob allows you to lock or unlock the doors and liftgate or activate the Panic Alarm from distances up to approximately 66 ft (20 m). In some conditions, this distance can be reduced or increased. The key fob does not need to be pointed at the vehicle to activate the system. The key fob also contains an emergency key, which is stored inside the key fob.
NOTE:
- The key fob’s wireless signal may be blocked if the key fob is located next to a metallic object, mobile phone, laptop, wireless charging pad, or other electronic device. This may result in poor performance.
- If the key fob’s battery is near depletion, the key fob performance can be reduced.
- Unlock
- Liftgate
- Lock
- PANIC
In case the Start button 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 can be verified by referring to the instrument cluster, which will display directions to follow.
To Unlock/Lock The Doors And Liftgate
Push and release the unlock button on the key fob once to unlock the driver’s door, or twice within five seconds to unlock all the doors and the liftgate. To lock all the doors and the liftgate, push the lock button once.
When the doors are unlocked, the turn signals will flash and the illuminated entry system will be activated. When the doors are locked, the turn signals will flash and the horn will chirp (if programmed in the Uconnect system).
NOTE:
If the vehicle is unlocked by a key fob, and no door is opened within 60 seconds, the vehicle will relock and if equipped, the security system will arm.
All doors can be programmed to unlock on the first push of the unlock button within Uconnect Settings.
Key Left Vehicle Feature — If Equipped
If a valid key fob is no longer detected inside the vehicle while the vehicle’s Start button system is in the ON/RUN 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 in order for the vehicle to detect a key fob; the Key Left Vehicle feature will activate when the first door is closed and no key fob is detected in the vehicle. If the warning has been activated, and the other doors are closed, no other warnings will be issued.
- These alerts will not be activated in situations where either the vehicle’s electric motor is left on with the key fob inside, or the key fob’s wireless signals are blocked.
Replacing The Battery In The Key Fob
The recommended replacement battery is one CR2032 battery.
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.
To replace the battery, proceed as follows:
- Using the fingertips, move the cover in the direction of the key chain hole until the teeth are released; gently remove the lower cover by pulling it upwards.
Key Fob Cover Removal - Remove the emergency key from its housing.
Emergency Key Removal - Remove the battery cover by prying the recess upwards.
Removing Battery Cover - Remove the battery from its slot and replace it with a new one. 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 and oils may cause battery deterioration. If you touch a battery, clean it with rubbing alcohol.
Battery Location
Proceed in reverse order to reassemble the key.
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 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.
- 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™ Propulsion System, always remember to place the power button 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 is one that has never been programmed.
NOTE:
- When having the Sentry Key Immobilizer system serviced, bring all vehicle keys with you to an authorized dealer.
- Emergency keys must be ordered to the correct key cut to match the vehicle locks.
- It is not mandatory to replace the key fob if a new emergency key is needed, and vice versa.
SENTRY KEY
The Sentry Key Immobilizer System prevents unauthorized vehicle operation by disabling the vehicle. 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 Start button, 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 electric motor off in two seconds if an invalid key fob is used to start the vehicle.
NOTE:
A key which has not been programmed is also considered an invalid key.
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!
- Always remove the Sentry Key from the vehicle and lock all doors when leaving the vehicle unattended.
- 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 keys provided with your new vehicle have been programmed to the vehicle electronics.
START BUTTON KEYLESS ENTER ‘N GO™ PROPULSION SYSTEM
This feature allows the driver to operate the Start button with the push of a button as long as the key fob is in the passenger compartment.
The START/STOP button has three operating positions. These positions are OFF, ON, and RUN.
START/STOP Button
The Start button can be placed in the following positions:
OFF
- The electric motor is off.
- Some electrical devices (e.g. power locks, alarm, etc.) are still available
ON
- Electric motor is ON.
- All electrical devices are available (e.g. climate controls, heated seats, etc.).
READY
- Driving mode.
- The electric motor will start (when foot is on the brake pedal)
NOTE:
The vehicle will not start if the key fob is located inside the cargo area and the liftgate is opened.
Backup Starting Method
NOTE:
If the Start button does not change with the push of a button, the key fob may have a low or depleted battery. In this situation, a backup method can be used to operate the Start button. Put the key fob in the cup holder between the front seats, in the dedicated spot with a symbol and push to operate the Start button.
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 a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the 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™ Propulsion System in the ON/RUN position. A child could operate power windows, 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 key fob from the vehicle and lock all doors when leaving the vehicle unattended.
NOTE:
- The key fob may not be detected by the vehicle Keyless Enter ‘n Go™ Propulsion System if it is located next to a mobile phone, laptop or other electronic device; these devices may block the key fob’s wireless signal and prevent the Keyless Enter ‘n Go™ Propulsion System from starting the vehicle.
- When opening the driver’s door and the Start button is in the ON/RUN position (electric motor not running), a chime will sound to remind you to place the Start button in the OFF position. In addition to the chime, the message “Ignition ON” will display in the cluster.
- The Start button will automatically switch to the OFF position if the following vehicle conditions last for 30 minutes: Start button placed in the ON/RUN position, gear is in PARK and electric motor is off.
DOORS
POWER DOOR LOCKS
The power lock/unlock button has an LED that indicates whether the doors are locked or unlocked.
Push the lock button on the instrument panel. The indicator light will illuminate to show the doors are locked.
Push the lock button on the instrument panel a second time to unlock the doors.
Instrument Panel Lock Button
- LED ON: Doors locked. Push the central lock/unlock button once to centrally unlock the front doors and liftgate. The LED will switch off.
- LED OFF: Doors unlocked. Push the central lock/unlock button again to centrally lock the front doors and liftgate. The doors will be locked only if all the doors are properly closed.
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 a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the 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 ignition of a vehicle equipped with Keyless Enter-N-Go in the ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.
- Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
CAUTION!
An unlocked car is an invitation. Always remove the key from the vehicle and lock all doors when leaving the vehicle unattended.
DOOR OPENING
The door can be opened by pressing the button located above each front door panel. If all doors are locked, pressing the button on either door will unlock the other door and liftgate. This ability can be activated or deactivated via Uconnet Settings.
NOTE:
Press the button three times in two seconds to open the doors in motion at speeds above 3 mph (5 km/h). Below 3 mph (5 km/h) doors will open at first press.
Power Door Button Opening
The doors can also be locked and unlocked with the Keyless Enter ‘n Go – Passive Entry system.
NOTE:
If the electronic key does not work, the doors can still be opened from the inside by pulling the manual door handle. For information on how to use the manual door handle.
KEYLESS ENTER ‘N GO™ — PASSIVE ENTRY
The Passive Entry system is an enhancement to the vehicle’s Remote Keyless Entry system and a feature of Keyless Enter ‘n Go™. This feature allows you to lock and unlock the vehicle’s door(s) without having to push the key fob lock or unlock buttons.
NOTE:
- Passive Entry may be programmed on/off through Uconnect Settings.
- The key fob may not be detected by the vehicle Passive Entry system if it is located next to a mobile phone, laptop, or other electronic device; these devices may interfere with the key fob’s wireless signal and prevent the Passive Entry system from locking and unlocking the vehicle.
- If wearing gloves, if it has been raining/snowing, or there is salt/dirt covering the Passive Entry door handle, the unlock sensitivity can be affected, resulting in a slower response time.
- The doors may unlock when water is sprayed on the Passive Entry door handles if the key fob is located outside of the vehicle within 5 ft (1.5 m) of the handle.
- If the vehicle is unlocked by the Passive Entry door handle, and no door opens within 60 seconds, the vehicle will relock and if equipped, the Vehicle Security system will arm.
To Unlock From The Driver Side
With a valid Passive Entry key fob within 5 ft (1.5 m) of the door handle, grab the handle to unlock the vehicle. Grabbing the driver’s door handle will unlock all doors and the liftgate automatically.
Lift The Door Handle To Unlock
NOTE:
Either the driver door only or all doors will unlock when you grab hold of the front driver’s door handle, depending on the selected setting in the Uconnect system.
Frequency Operated Button Integrated Key (FOBIK-Safe)
To minimize the possibility of unintentionally locking a Passive Entry key fob inside your vehicle, the Passive Entry system is equipped with an automatic door unlock feature.
FOBIK-Safe only executes in vehicles with Passive Entry. There are three situations that trigger a FOBIK-Safe search in any Passive Entry vehicle:
- A lock request is made by a valid Passive Entry key fob while a door is ajar.
- A lock request is made by the Passive Entry door handle while a door is ajar.
- A lock request is made by the door panel switch while the door is ajar.
When any of these situations occur, after all ajar doors are shut, the FOBIK-Safe search will be executed. If it detects a Passive Entry key fob inside the car, and it does not detect any Passive Entry key fobs outside the car, then the car will unlock and alert the customer.
NOTE:
The vehicle will only unlock the doors when a valid Passive Entry key fob is detected inside the vehicle, and no valid Passive Entry key fob is detected outside the vehicle. The vehicle will not unlock the doors when any of the following conditions are met:
- The doors are manually locked using the door lock button.
- There is a valid Passive Entry key fob outside the vehicle and within 5 ft (1.5 m) of either Passive Entry door handle.
To Lock The Vehicle’s Doors And Liftgate
With one of the vehicle’s Passive Entry key fobs within 5 ft (1.5 m) of either front door handles, pushing the Passive Entry lock button will lock the vehicle.
Push The Door Handle Button To Lock
NOTE:
- After pushing the door handle button, you must wait two seconds before you can lock or unlock the doors, using any Passive Entry door handle. This is to allow you to check if the vehicle is locked by pulling the door handle without the vehicle unlocking.
- The Passive Entry system will not operate if the key fob battery is depleted.
The vehicle doors can also be locked by using the lock button located on the center dashboard.
Activation/Deactivation Of Keyless Enter ‘n Go™
Keyless Enter ‘n Go™ can be activated or deactivated through the instrument cluster display or through the Uconnect system.
AUTOMATIC DOOR LOCKS — IF EQUIPPED
When the auto door lock feature is enabled, if all of the doors are closed properly, the door locks will lock automatically when the vehicle’s speed exceeds 12 mph (20 km/h). The auto door lock feature is enabled/ disabled within Uconnect Settings.
EMERGENCY CLOSING AND OPENING
If the electronic key does not work, e.g. if the battery of the key is low, you can:
- Unlock the car using the mechanical key inside the electronic key by acting on the pawl located on the driver’s door. See the “Emergency opening of the doors from outside” paragraph below.
- Lock the car by pressing the door open button placed on the inner door panel for about 5 seconds keeping the electric motor in the OFF position and the door open. The car will lock all the doors and the liftgate after about 5 seconds. The LED on the door button and on the center dashboard will light up to notify the locking. When the last door is closed the car will be locked. The car can be locked from any door, respecting the manoeuvre described above.
NOTE:
After locking the car by emergency manoeuvre, make sure you do not leave the keys inside the car. The emergency locking manoeuvre disables the FOBIK-Safe function.
Opening And Locking Doors In The Event Of Power Failure
In the event of a flat 12V car battery, the doors can still be opened or locked because they are equipped with an additional power supply.
Opening and Locking Doors in the Event of Power Failure
If the 12V battery of the car is flat, the doors can still be opened or locked as they are equipped with an additional power supply.
Opening the doors
You can open the door in the following ways:
- with the doors locked, press the door opening button on the external handle three times within 2 seconds.
- Turn the pawl placed on the driver’s door using the mechanical key located inside the electronic key.
- Press the internal door opening button three times in two seconds.
Locking the doors
The doors can be locked following the emergency locking manoeuvre. See the “Emergency closing and opening” paragraph described above.
NOTE:
If the doors are not locked using the emergency locking procedure, repeat the operation for each single door.
RESET
Resetting the door is automatic for a certain number of times after which it must be done manually using the pawl using the key inside the remote control.
Door RESET
Emergency opening of the doors from the inside
If the electronic key does not work, for example if the electronic key or the 12V battery of the car is low, the doors can still be opened from the inside by pulling the manual door handle located on each door.
Manual Door Handle
Emergency opening of the doors from the outside
If the electronic key does not work (e.g. if the battery of the electronic key is low) or if the power supply fails completely, you can still open the doors from the outside by proceeding as follows:
- remove the cap present on the external handle on the driver’s side inserting the mechanical key inside the electronic key in the slot;
External Handle Cap
- open the door using the mechanical key inside the electronic key by turning the pawl anticlockwise on the outside handle on the driver’s side.
Mechanical Key Opening
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2023 Fiat 500X Review, Price, Features And Mileage (Brochure)