Kia K4: Keys and Remote Access Fobs / Remote key:

Contents:

• Mechanical key
• This device complies with Part 15 of the FCC rules.

If your specific trim configuration includes the entry-level remote keyless entry system rather than the standard proximity smart key, you can utilize the remote key fob to securely lock or unlock the passenger doors, as well as release the trunk lid or rear liftgate on your vehicle. This system relies on a dedicated radio frequency transmitter that communicates directly with the centralized body control module of the Kia K4.

Door Lock Function (1)

All passenger doors, including the fuel filler door, will lock simultaneously if you press the primary lock button on the transmitter while the key fob is within the designated operating range of the vehicle. Once all doors, the engine hood, and the trunk/liftgate are fully closed, the exterior hazard warning lights will blink once, and an electronic chime will sound once to provide immediate visual and audible confirmation that the Kia K4 security perimeter is armed.

If you prefer an additional confirmation signal, you can press the lock button a second time within 4 seconds of the first press. Doing so will cause the exterior hazard warning lights to flash again and the confirmation chime to chirp once more, ensuring you can verify that your Kia K4 is locked even from a distance or in noisy environments.

Please note that if any door, the engine hood, or the trunk remains slightly ajar, or if the transmitter key is out of operational signal range, the hazard warning lights will not blink and the chime will remain silent, indicating that the vehicle has failed to secure itself. If you close all open portals after having pressed the lock button, the system will instantly complete the locking cycle, the hazard warning lights will blink once, and the confirmation chime will sound once to signal full arming.

Door Unlock Function (2)

All passenger doors will unlock instantly if you press the unlock button once while the key is within functional signal range of the vehicle. The exterior hazard warning lights will blink twice to indicate that all locks have successfully disengaged and the perimeter anti-theft system of the Kia K4 has been deactivated.

Automated Safety Relock Feature: To prevent accidental un-locking, all vehicle doors will automatically relock themselves, and the anti-theft system will re-arm, if you do not physically open any passenger door or the trunk within 30 seconds of pressing the unlock button on your remote transmitter.

For security reasons, the vehicle door locks will not respond to the smart key or remote key fob lock/unlock buttons in the following operational situations:

• When the ignition switch or engine start button is set to the ACC (Accessory) or ON power positions.

• When you attempt to lock the vehicle while one or more of the passenger doors remain physically open.

Depending on your market destination and specific trim options, the driver can manually activate or deactivate the selective 2-press unlock setting via the vehicle settings menu. This safety feature unlocks only the driver door on the first press and the remaining doors on a secondary press. For detailed programming information, please refer to the separately supplied infotainment system manual for your Kia K4.

PROFESSIONAL OPERATION TIPS AND WARRANTY LIMITATIONS:

• Window Tint Interference: Applying aftermarket window tinting films to your vehicle glass—especially metallic, carbon-metallic, or metalized ceramic films—can significantly interfere with the interior radio frequency receiver module. This can disrupt the keyless receiving frequency and severely reduce the operational range of your Kia K4 remote transmitter.

• Liquid and Moisture Damage: The internal printed circuit board of your remote transmitter is a sensitive electronic device. If the smart key or remote key fob becomes inoperative due to internal exposure to water, heavy moisture, chemical cleaners, or other liquids, the resulting damage will not be covered by your original manufacturer's vehicle warranty. Always keep the key fob dry.

Trunk / Liftgate Unlock and Release Function (3):

The rear trunk lid or liftgate assembly will unlock and automatically unlatch if you press and hold the dedicated trunk button on the remote fob for more than 1 second. Once the trunk is shut manually, it will automatically lock itself again, provided the rest of the Kia K4 doors remain locked.

Panic Alarm Function (4)

In the event of an emergency or a personal safety threat near your vehicle, you can activate the panic system. The factory vehicle horn will sound continuously and the exterior hazard warning lights will flash rapidly for approximately 30 seconds if you press and hold the red panic alarm button on the key fob for more than 1 second. To silence the acoustic horn and deactivate the flashing lights before the 30-second cycle completes, simply press any operational button on your Kia K4 smart key transmitter.

Mechanical key

In scenarios where the internal CR2032 button battery of your remote keyless entry fob is completely discharged, or if local radio frequency anomalies prevent standard wireless communication, you can manually lock or unlock the driver-side door lock cylinder using the physical mechanical key. This backup override system ensures uninterrupted entry into your Kia K4 passenger cabin under all operational circumstances.

• To Unfold the Mechanical Key Blade: Locate and press the small, chrome-finished mechanical release button positioned on the top corner of the transmitter housing. Once depressed, the spring-loaded metal key blade will automatically unfold and click into its locked, extended position.

• To Fold the Mechanical Key Blade Away: Press and hold down the same chrome mechanical release button, then manually pivot the metal key blade back down into its dedicated storage slot inside the transmitter casing until it snaps securely into place.

CRITICAL HARDWARE DAMAGE WARNING:

Never attempt to force, pull, or fold the integrated metal key blade back into the remote housing without completely depressing the mechanical release button first. Applying brute manual pressure against the internal spring-lock mechanism can twist the alignment pins or fracture the composite casing, causing irreversible damage to your primary Kia K4 key configuration.

Transmitter Precautions and Wireless Operational Boundaries

TECHNICAL NOTICE FOR OPTIMAL SMART KEY PERFORMANCE:

The integrated keyless entry radio transmitter module assigned to your Kia K4 may experience temporary operational blockages or complete signal dropouts under the following environmental or mechanical conditions:

• Physical Ignition Status: The auxiliary mechanical ignition key remains inserted inside the steering column ignition switch barrel (applicable to base-trim variants without a push-button start setup).

• Range Constraints: You have exceeded the maximum operational distance threshold limit, which is rated at approximately 10 meters (30 feet) away from the integrated antenna array of your Kia K4.

• Voltage Drop: The internal lithium coin-cell battery inside the remote transmitter housing has dropped below critical voltage thresholds, causing weak signal output.

• Physical Signal Obstructions: Adjacent heavy industrial machinery, thick reinforced concrete walls, specialized commercial construction elements, or closely parked high-sided vehicles are physically shielding or absorbing the radio wave path.

• Thermal Variables: Ambient weather conditions are extremely cold or freezing, which temporarily reduces the peak electrical chemical output and efficiency of the small cell battery inside the key fob.

• Radio Frequency Interference (RFI): The vehicle transmitter is in close proximity to a high-output radio broadcasting station, military infrastructure, communication towers, or commercial airport radar arrays that heavily congest the specific megahertz frequency spectrum. If your remote transmitter fails to operate due to high localized RFI, use the physical mechanical key to gain entrance. For persistent electronic pairing errors, Kia recommends contacting a certified, authorized Kia dealer for diagnostic inspection.

• Smartphone Proximity Shielding: If your remote transmitter is resting directly against a modern cell phone or smartphone, the massive high-frequency data streams emitted by the phone can inadvertently desensitize the remote key's antenna. This signal masking is most prominent when your mobile device is actively transmitting—such as during voice calls, receiving push notifications, streaming media, text messaging, or processing continuous email synchronization. To ensure immediate access, avoid storing your remote keyless transmitter and your smartphone in the exact same pocket of your pants or jacket; always maintain a buffer distance between the two devices.

MAINTENANCE TIPS FOR PREVENTING COMPONENT FAILURE:

• Moisture and Liquid Ingress: Always shield your keyless entry transmitter from direct contact with rainwater, puddles, chemical solvents, or any liquids. If the internal circuit board of your keyless access tool short-circuits or corrodes due to moisture exposure, the replacement costs will be excluded from protection under your original manufacturer's vehicle warranty guidelines.

• Electromagnetic Shielding: Do not store your remote key alongside strong industrial magnets, high-voltage induction chargers, or metallic foils. Magnetic materials can distort the transponder chip data, creating an electronic barrier that prevents your Kia K4 from recognizing its authorization codes.

FCC COMPLIANCE AND MANUFACTURER WARRANTY NOTICE:

Any structural modifications, component changes, or housing alternations not expressly approved in writing by the corporate compliance party responsible for telecommunication standards will instantly void the operator's legal authority to utilize this wireless equipment. If your Kia K4 keyless entry system becomes completely inoperative as a direct result of unauthorized hardware modifications or unapproved aftermarket casing transfers, all diagnostic and repair procedures will not be covered under your manufacturer's new vehicle warranty protection plan.

This device complies with Part 15 of the FCC rules.

The keyless entry and remote access hardware integrated into your vehicle operates under strict federal communication standards. Operation of this wireless component is subject to the following two mandatory conditions:

1. This device may not cause harmful electromagnetic interference to other surrounding electronics, and

2. this device must accept any radio frequency interference received from external sources, including incoming signals that may cause undesired or intermittent operation of the system.

FCC COMPLIANCE & HARDWARE MODIFICATION NOTICE:

Any structural changes, physical modifications, or component alterations to the remote transmitter circuitry not expressly approved in writing by the certified party responsible for compliance could completely void the user’s legal authority to operate this equipment. If the primary or secondary remote key fob becomes inoperative due to unapproved aftermarket modifications or unauthorized casing transfers, all diagnostic and replacement costs will not be covered under your original manufacturer’s Kia K4 vehicle warranty protection plan.