Auto Keys
Infiniti Key Replacement, Key Fob Programming & Smart Key Service
Infiniti shares Nissan's Intelligent Key platform; we cut and program Infiniti keys and proximity fobs at your location across Palm Beach County.
Infiniti is Nissan's premium line and shares the same Intelligent Key proximity platform. Newer Infiniti models use a dedicated smart-key fob (FCC KR5S180144106 on the Q50, Q60, QX60, and QX80), while older models share the Nissan fob families, so the year and ignition type decide which key your Infiniti needs.
Our mobile techs cut and program keys for the Infiniti lineup most common in Palm Beach County, including the Q50, QX60, and QX80. We carry the programming tools in the van, confirm whether your Infiniti is turn-key or push-to-start, and finish most jobs curbside in one visit.
Infiniti models we service
Infiniti key types by generation
Infiniti keys changed significantly from one era to the next. The right blank, chip, and programming path depend on the year, trim, and ignition type, which is why we ask for the details before selecting a key.
Older models: shared Nissan transponder and Intelligent Keys
Earlier Infiniti models share the Nissan KBRASTU15 and CWTWB1U751 fob families and the Intelligent Key proximity system. Confirm the exact fob from the original key or VIN.
Transition era: Nissan Intelligent Key fobs
Mid-era Infiniti models continued on the Nissan Intelligent Key platform, sharing the KR55WK48903-era fobs on many trims. The emergency blade hides inside the proximity fob.
2015 to present: dedicated Infiniti smart key
Modern push-to-start Infiniti models use the KR5S180144106 proximity smart key on the Q50, Q60, QX60, and QX80, with an emergency blade inside. Lost smart keys are programmed to the specific vehicle.
Infiniti key data by model
Verified blank, chip, and FCC references are marked accordingly. Where a value depends on trim, button count, or production date, confirm it from the original key, a VIN lookup, or a supplier catalog before cutting or ordering.
Data is drawn from professional locksmith key references. It is a starting point for identification, not a guarantee for your specific vehicle.
Infiniti Q50 Key Replacement
The Q50 is Infiniti's mid-size sport sedan and uses the dedicated Infiniti Intelligent Key across its run. Confirm the exact fob by VIN for early build years.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2014-2014 | Intelligent Key (proximity) | Emergency blade | Smart key | Shares Nissan Intelligent Key era; confirm from original fob or VIN | Proximity programming | Emergency insert | Confirm with original fob |
| 2015-2025 | Intelligent Key (proximity) | Emergency blade | Smart key | FCC KR5S180144106 | Proximity programming | Emergency insert | Verified from source data |
Infiniti QX60 Key Replacement
The QX60 is Infiniti's three-row SUV and uses Intelligent Key proximity fobs, sharing the Nissan platform on older models and the dedicated Infiniti fob on newer ones.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2013-2014 | Intelligent Key (proximity) | Emergency blade | Smart key | Shares Nissan Intelligent Key era; confirm from original fob or VIN | Proximity programming | Emergency insert | Confirm with original fob |
| 2015-2025 | Intelligent Key (proximity) | Emergency blade | Smart key | FCC KR5S180144106 | Proximity programming | Emergency insert | Verified from source data |
Infiniti QX80 Key Replacement
The QX80 is Infiniti's full-size SUV and uses the dedicated Infiniti Intelligent Key on newer push-to-start models. Confirm the exact fob by VIN for the earliest years.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2014-2014 | Intelligent Key (proximity) | Emergency blade | Smart key | Shares Nissan Intelligent Key era; confirm from original fob or VIN | Proximity programming | Emergency insert | Confirm with original fob |
| 2015-2025 | Intelligent Key (proximity) | Emergency blade | Smart key | FCC KR5S180144106 | Proximity programming | Emergency insert | Verified from source data |
Common Infiniti key problems
- •Intelligent Keys that fail after water exposure following beach and boat days.
- •Dead Intelligent Key coin batteries mistaken for a failed fob.
- •All-keys-lost situations on push-to-start models that require programming to the vehicle.
- •Buttons that stop working on the proximity fob while the emergency blade still works.
- •Confusion between older Nissan-shared fobs and the newer dedicated Infiniti key.
Infiniti programming notes
- •Adding a spare while you still have a working key is faster and cheaper than an all-keys-lost job.
- •Intelligent Keys are programmed to one specific Infiniti and cannot be reused on another vehicle.
- •Infiniti shares the Nissan key platform, so we confirm the exact fob by VIN before ordering.
- •A no-start with a good battery is often the chip or immobilizer, not the engine, and the key may need reprogramming.
What to have ready before service
Sending these details when you call (561) 839-9919 lets us bring the right blank and programming tools on the first trip so your Infiniti job is done in one visit.
Real Infiniti locksmith scenarios
These are the Infiniti situations we actually get called for in Palm Beach County, with the technician's read on each one: what is happening, whether a mobile locksmith can solve it, and what the job typically involves. They are educational examples, not testimonials.
Intelligent Key not detected on a push-to-start Infiniti
You press the start button on a Q50, QX60, or QX80 and get a no key detected or key system error with the fob right there.
Likely causes
- •Dead or weak coin battery in the Intelligent Key.
- •A failed or water-damaged fob.
- •All fobs lost so none can be detected.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob has failed
Complexity
Routine to moderate
Common repair options
- •Replace the coin battery and retest.
- •Hold the fob to the start button to use the backup detection, then diagnose.
- •Program a new Intelligent Key and cut the emergency blade.
Can a locksmith help? Yes. We test the fob, replace the battery, or program a new Intelligent Key if it has failed.
Electronic steering lock failure
The dash shows a steering lock or key system warning, the wheel stays locked, and the start button does nothing even with a good fob.
Likely causes
- •A failed electronic steering column lock shared with the Nissan platform.
- •A fault between the body control module and the steering lock actuator.
- •A low 12V battery confusing the system.
Programming
Required if the key or immobilizer is at fault
Ignition repair
Not required; a failed steering lock unit is a separate mechatronic repair
Key replacement
Only if the key has also failed
Complexity
Moderate to advanced
Common repair options
- •Test the fob and immobilizer to rule the key in or out.
- •Program a new Intelligent Key if the fob is the cause.
- •Refer the steering lock actuator to a shop when the lock unit itself has failed.
Can a locksmith help? Yes. We confirm whether the fault is the key and immobilizer side or the steering lock unit itself, and program a key when the key is the problem.
Dead Intelligent Key battery mistaken for a failed fob
The fob suddenly stops unlocking the doors and the car barely detects it, so you assume the fob is dead.
Likely causes
- •A drained coin battery after a couple of years.
- •A fob left near constant interference.
Programming
Only if a new fob is needed
Ignition repair
Not required
Key replacement
Only if the fob has failed
Complexity
Routine
Common repair options
- •Replace the coin battery and retest detection.
- •Program a new Intelligent Key if the fob itself is faulty.
Can a locksmith help? Yes. We test the fob and battery first and only replace the fob if it has truly failed.
Lost all Infiniti keys
Every fob is gone and the vehicle will not detect a key or start.
Likely causes
- •All keys misplaced, stolen, or lost on the water.
- •Only one fob came with a used Infiniti and it was lost.
Programming
Required
Ignition repair
Not required
Key replacement
Required
Complexity
Moderate
Common repair options
- •Program a new Intelligent Key and cut the emergency blade.
- •Confirm the exact fob by VIN before ordering.
Can a locksmith help? Yes. We generate and program a new Intelligent Key directly to the vehicle on site.
Spare key while you still have one
You have one working fob and want a backup before it is lost or damaged.
Likely causes
- •A single fob on a used Infiniti.
- •A household sharing one fob between drivers.
Programming
Required to pair the spare
Ignition repair
Not required
Key replacement
Adding a spare
Complexity
Routine
Common repair options
- •Program a spare Intelligent Key and cut its emergency blade.
- •Confirm the correct fob by VIN first.
Can a locksmith help? Yes. Adding a spare while you still have a working fob is the fastest and cheapest key job we do.
Water-damaged fob after a beach or boat day
The fob got wet on the boat or at the beach and now detection and buttons are unreliable.
Likely causes
- •Salt water or moisture corroding the fob board.
- •A swollen or shorted coin battery.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob is corroded
Complexity
Routine to moderate
Common repair options
- •Replace the battery and dry the fob to test function.
- •Program a new Intelligent Key if the board is corroded.
Can a locksmith help? Yes. We test whether the fob can be revived and program a new Intelligent Key when water damage is permanent.
Key system error message
A key system error or push the ignition switch message keeps appearing, sometimes with intermittent starting.
Likely causes
- •A weak fob battery dropping the signal.
- •An aging fob with a fading transmitter.
- •A low vehicle 12V battery.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob is failing
Complexity
Routine to moderate
Common repair options
- •Replace the fob battery and recheck.
- •Program a replacement Intelligent Key if signal stays weak.
- •Confirm the vehicle battery is healthy.
Can a locksmith help? Yes. We check the fob signal and battery and program a fresh Intelligent Key if the old one is failing.
Push-button start does nothing intermittently
The start button works sometimes and does nothing other times, with no clear pattern.
Likely causes
- •A weak fob battery dropping in and out.
- •A low vehicle 12V battery.
- •An aging fob with a fading signal.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob is failing
Complexity
Routine to moderate
Common repair options
- •Replace the fob battery and confirm the vehicle battery is healthy.
- •Program a new Intelligent Key if the signal stays unreliable.
Can a locksmith help? Yes. We test the fob and program a fresh Intelligent Key when the old one is the weak link.
Broken Intelligent Key shell
The car still detects the fob, but the shell has cracked or the emergency blade has come loose.
Likely causes
- •Years of daily handling and drops.
- •A failed shell hinge or split casing.
Programming
Only if a new fob is supplied
Ignition repair
Not required
Key replacement
Shell swap or full fob
Complexity
Routine
Common repair options
- •Rehouse the existing electronics and emergency blade in a new shell.
- •Program a new Intelligent Key if the board is also damaged.
Can a locksmith help? Yes. We can move the working electronics into a new shell or supply and program a fresh fob.
Remote buttons dead but the fob still starts the car
Lock and unlock from the fob stopped working, yet the car still recognizes the fob and starts.
Likely causes
- •A failed button membrane or transmitter on the fob.
- •A weak coin battery.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob has failed
Complexity
Routine
Common repair options
- •Replace the fob battery and retest the buttons.
- •Program a new Intelligent Key.
Can a locksmith help? Yes. We replace and program a new Intelligent Key so the buttons work again.
Used Infiniti with a Nissan-shared fob question
You bought a used Infiniti and are not sure whether it uses the older Nissan-shared fob or the newer dedicated Infiniti key.
Likely causes
- •Early models share Nissan Intelligent Key fobs while newer ones use a dedicated fob.
- •Only one key came with the vehicle so there is nothing to compare.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
Adding a spare or replacement
Complexity
Routine to moderate
Common repair options
- •Confirm the correct fob family by VIN before ordering.
- •Program a spare or replacement Intelligent Key once confirmed.
Can a locksmith help? Yes. We confirm the exact fob by VIN and by inspecting your original, then add a spare or replace as needed.
Fob works only when held close
The car only detects the fob when it is right next to the start button or door handle, not from a pocket.
Likely causes
- •A weak coin battery reducing range.
- •An aging fob with a fading antenna.
Programming
Only if a new fob is needed
Ignition repair
Not required
Key replacement
If the fob is failing
Complexity
Routine
Common repair options
- •Replace the coin battery and retest range.
- •Program a new Intelligent Key if range stays poor.
Can a locksmith help? Yes. We test range and battery and program a fresh fob if the transmitter is fading.
Infiniti Key & Fob FAQs
Can you replace an Infiniti key if I lost all of them?
Yes. We program a new Intelligent Key to your vehicle on site. All-keys-lost jobs on push-to-start models take a little longer because the key is programmed directly to the car.
Do you program Infiniti Intelligent Keys (push-to-start)?
Yes. We supply and program proximity Intelligent Keys such as the KR5S180144106 used on the Q50, Q60, QX60, and QX80 and cut the emergency blade inside.
My Infiniti won't start even with the fob inside. What's wrong?
The smart key has to be detected by the vehicle. It is often a dead coin battery or a fob that needs reprogramming; we can test it and program a new key if needed.
Is my Infiniti turn-key or push-to-start?
Most modern Infiniti models are push-to-start. If you press a button to start it is an Intelligent Key; tell us which so we bring the correct key.
How much is a replacement Infiniti key?
It depends on the model and year and the exact proximity fob. We quote an up-front price before we head out.
Can you cut a spare Infiniti emergency blade from my working key?
Yes. A spare made while you still have a working key is the cheapest insurance against a future lockout, and we cut and program it on the spot.
Do you come to my home or workplace?
Yes. We are fully mobile and service Infinitis wherever they are parked across Palm Beach County.
Why is my Infiniti Intelligent Key not detected?
It is often a dead coin battery rather than a failed fob. We can test it, replace the battery, or program a new Intelligent Key if needed.
Does Infiniti share keys with Nissan?
Infiniti is Nissan's premium line and uses the same Intelligent Key platform. Newer models use a dedicated fob; we confirm the exact one by VIN before ordering.
What do you need to make an Infiniti key?
The year, model, VIN, whether it is turn-key or push-to-start, and proof of ownership. A photo of your current key helps us match it.
Other makes we cut & program keys for
Understand your Infiniti key before you call
Plain-English guides from our locksmiths on how Infiniti keys, fobs, and immobilizers actually work, so you know what you are dealing with.
Infiniti keys near you
We bring Infiniti key cutting and programming to your door across Palm Beach County.
Locked Out? We're on the Way.
Don't wait around. Our mobile technicians are stationed throughout West Palm Beach ready to dispatch to your location immediately.