2019 Nissan Murano Key Replacement

2019 Murano key specs

Every third-generation Murano uses an Intelligent Key with push-button start. Fobs come with three, four or five buttons depending on equipment, the extras controlling the power liftgate and factory remote start. Supplier catalogs list FCC ID KR5S180144014 for early fobs and KR5TXN7 for later ones, starting around 2018, and the 2022-2023 four-button fob is the same 9BU5A part listed for the Titan. Each fob holds a mechanical key for the driver's door. With so many versions, the part number inside your current fob is the best guide.

What's specific to the 2019 Murano

The 2019 Nissan Murano is the fifth of 10 model years in the Murano Z52 (third generation) (2015–2024), so it shares its key system with the rest of that run, which makes replacement parts easy to source. A 2019 Nissan Murano is about 7 years old now. Original fob batteries are near the end of their life at this age, so weak range or a "key not detected" message is often a battery before it is a failed fob. Cars this age are often on their second owner, which is when a single remaining key and a request for a spare tend to show up.

Smart-key cars like the 2019 Murano can be targeted with relay attacks that extend the fob's signal from inside your home, so keep fobs away from exterior walls or in a signal-blocking pouch, and have any missing fob erased from the car.

Key options for the 2019 Nissan Murano

• Smart proximity key (push-to-start). Proximity keys bring a security trade-off worth understanding. Because the fob is always listening, thieves with relay equipment can stretch its signal from inside your house to the car in the driveway. Keeping the fob away from exterior walls, or in a signal-blocking pouch, closes that gap, and some fobs offer a sleep mode described in the owner's manual. If a smart key for your 2019 Nissan Murano is lost or stolen, programming a replacement is the moment to delete the missing fob from the car's memory. And be wary of used fobs from online sellers: a lot of them are locked to the vehicle they came from and can't be reprogrammed to yours.

How the Nissan immobilizer works on the Murano

Nissan's immobilizer is called NATS, short for Nissan Anti-Theft System, and nearly every Nissan sold in the US since 2000 has one; a few early pickups and SUVs were built with plain keys. A chip in the key or fob has to answer the car before the engine is allowed to run, and a small security light on the dash blinks while the system is armed. Around 2000, cars such as the Maxima and Altima used the Texas Crypto 4D60 transponder. From about 2003, the 350Z, Armada, Frontier and later Altimas and Maximas moved to the Philips ID46, which stayed inside Nissan's Intelligent Key fobs for about a decade. Intelligent Key proximity fobs arrived first with a twist-knob ignition on Pathfinders, Armadas and the 2007 Maxima, and the 2007 Altima made push-button start standard. Some 2013-era fobs switched to Hitag 3 (ID47), and Hitag AES (4A) took over from the 2016 Maxima, the 2018 Leaf and Kicks, and the 2019 Altima. The newest platforms, including the Ariya, the 2025 Kicks and the 2025 Armada, use current-generation fobs and add security layers that make lost-key work slower. Your model year and the part number inside your fob tell us which system you have.

• Catalogs list the five-button KR5TXN7 fob, parts 285E3-9UF7A and 9UF7B, for 2018-2023 Muranos and for 2018-2020 Pathfinders.
• A remote-start button only works on a Murano that left the factory with remote engine start, so match the button count to your old fob.

Programming a 2019 Murano key

We register Murano fobs through the OBD-II port. The car gives up a security code, and depending on the year our equipment converts it to a PIN directly or through an online calculation. All fobs you keep must be present, because registration erases the others. Later fobs in this family are often locked to the first car they learn, so we usually start with a new fob. All-keys-lost is often handled on site after we cut the emergency key from a decoded door lock, depending on the build.

Spare fobs are routine on this generation. Late-model Muranos with newer encrypted fobs can need extra steps or a dealer PIN for all-keys-lost, confirmed by VIN.

Lost every key to your Murano?

1. Gather your documents and the VIN. Find your registration or title and a government photo ID in the same name. Note the VIN, which is printed on the driver's side of the dashboard and usually on your insurance card. If the paperwork is locked in the car, tell us; we'll open the vehicle first and check it there.
2. Get into the vehicle without damage. If the car is locked, we open it with non-destructive tools such as an inflatable wedge and a long-reach rod, or by picking the door lock. Some vehicles need a careful approach to avoid triggering the alarm, which can interfere with programming later.
3. Originate a new key from the car. Originating a key means building it without a sample. The door lock usually reveals most of the cuts; any it doesn't are worked out by test-cutting and trying the ignition or a second lock. The finished blade should feel like a factory key, not a forced fit.
4. Program the key to the immobilizer. All-keys-lost programming often takes longer than adding a key, because the car has no trusted key to authorize the change. We follow the procedure your Nissan Murano requires, then confirm the engine starts and keeps running and the remote or keyless functions respond.
5. Erase missing keys and add a spare. A lost key's metal blade can still open your doors even after its chip is erased. If the keys disappeared along with something showing where you live or park, consider rekeying the car's door lock cylinders too. We'll also recommend leaving with two working keys, not one.

Why a spare key pays for itself

• When you sell or trade in the vehicle, buyers and dealers expect two keys. A missing key can come up during an appraisal or a private-sale negotiation, so having both on hand keeps the conversation about the car, not about what it will cost the next owner to replace one.
• Two drivers sharing one key is a daily negotiation. A second key lets a partner, teenager or coworker use the vehicle without handing keys back and forth in parking lots, and it means one person losing their key ring doesn't leave the whole household stuck.
• Some vehicles make it hard to add a key once you're down to one. Certain immobilizer systems let an owner program an extra key on-board only when two working keys are present, so a second key preserves the easy options for later and avoids a full reset.

Dealer or mobile locksmith?

Price and parts are the other half of the comparison. Dealers typically sell factory keys only and charge their posted service rates for programming. We offer factory keys where it matters and quality aftermarket alternatives where they perform well, and the quote covers cutting, programming and the trip, with nothing tacked on at the end. Timing differs too. Dealer service departments generally keep business hours, while we take automotive calls every day from 6:30 a.m. to 11:30 p.m., which covers early commutes and late evenings. We're closed overnight, and we'll be upfront if your timing means the dealer or a next-day visit is the better plan. Neither option is wrong; the right one depends on your Murano and your schedule.

Murano key battery

Most fobs for a 2019 Nissan Murano open along a small slot in the seam; a coin or a plastic pry tool works better than a screwdriver, which chews up the housing. If the fob hides a mechanical blade, slide it out first, since the case often opens from that gap. Note which side of the old cell faces up, swap in a fresh CR2032, and press the halves together until they click all the way around. Handle the new battery by its edges, because skin oil on the faces can hurt contact. In most cases the fob keeps its programming through a battery change, so test lock, unlock and start, and you're done.

How the job works

1. Identify the exact key your Murano uses. We ask a few quick questions on the phone: the year, whether the car starts with a turn key or a button, how many keys you have left, and whether the remote still works the doors. Then we check the VIN against our programming references so the van arrives with the correct blank or fob, not a close guess.
2. Verify ownership before any work. Before cutting or programming, we compare your government photo ID with the vehicle registration or title and check that the VIN on the paperwork matches the VIN on the dash. If the registration is locked inside, we open the car first, confirm the documents, and only then make the key.
3. Get the key code or decode the lock. If you still have a working key, we can read its cuts directly and check them against the factory depths for the Nissan keyway. A worn key gets corrected back to spec during this step, so the new key turns crisply instead of reproducing years of wear in a fresh piece of metal.
4. Cut the blade on-site. Our van carries a code-cutting machine that handles both traditional edge-cut blades and the laser-cut, side-milled profiles common on newer keys. The blade is cut to the code, then test-fitted in a door lock and the ignition or emergency keyhole to confirm smooth operation before any programming begins.
5. Program the chip, remote or smart key. Programming tells the car's computers that the new key belongs to the vehicle. Transponder chips are added to the immobilizer, remote buttons to the body control module, and proximity fobs to the keyless system. If a step requires dealer-only access on your Murano, you'll have heard that before we arrived, not halfway through the job.
6. Test everything and clear out old keys. The last step is a short walkthrough. We show you how many keys the car now recognizes, point out the dead-fob start method for your vehicle, and hand you an itemized receipt. If a spare makes sense, it's simplest to add it during this same visit while the equipment is already connected.

What affects the price of a Murano key

• The type of key. The biggest factor is technology. A plain mechanical key is a cutting job only. A transponder key adds a chip and programming. Remote-head and flip keys add a circuit board, and a proximity fob for a push-button Nissan Murano is the most involved of all, both in the part itself and in the programming.
• All keys lost or adding a key. Adding a key while a working one is in hand is the simpler job. With every key gone, we may have to open the car, decode a lock to originate the cuts, and run a longer programming routine, so all-keys-lost work takes more time and costs more.
• Programming complexity and security access. Some immobilizers accept a new key with a few on-board steps. Others need a PIN code, a timed security wait, manufacturer online access, or removing a module to read its data. Every extra layer of security on the Nissan system adds equipment time and labor to the job.
• Travel, timing and extra repairs. Because we come to you, the distance from our San Bernardino base and the time of the call play a part. So does anything we find along the way, such as a worn ignition cylinder or a seized door lock. You hear about each item and get a quote before we start work.

Call (951) 903-3193 with your VIN and the keys you still have, and we'll quote the job before any work starts.

Common Nissan key problems

• Nissan does not keep key numbers on file. The small metal key number plate that came with your keys is the only record, so photograph it and store it outside the car; without it, an all-keys-lost job starts with decoding a lock.
• Secondhand Intelligent Keys are a common dead end. Many newer Hitag AES fobs lock to the first car that learns them, and a fob with a different FCC ID or part number won't register even when it looks identical to yours.
• A security light that stays lit after you switch the ignition on, with the engine refusing to start, means NATS doesn't recognize the key: a cracked transponder, a key registered to another car, or an aftermarket remote starter interfering.

Tips from a mobile locksmith

• Every so often, use the mechanical blade in the driver's door lock. Cylinders that go years without a key can seize from dust and dried grease, and you won't find out until the day the fob dies and the blade is your only way in. A small shot of dry lubricant keeps the lock ready.
• Be careful with discount fobs from online marketplaces. A listing may match your remote's shape while using a different frequency, chip or FCC ID, and many used smart keys are locked to their original vehicle. If you already bought one, send us the listing or a photo before the visit so nobody pays for a programming attempt that can't work.
• When a key's head cracks or its blade bends, replace it before it fails. A transponder chip can slip out of a split head, and a bent blade can break off inside the ignition or door lock, turning a simple key replacement into an extraction and repair job. Small symptoms are the inexpensive time to act.

Proof of ownership

Making car keys is regulated work in California. Locksmiths are licensed and overseen by the Bureau of Security and Investigative Services under the Locksmith Act, Business and Professions Code section 6980 and following, and Julian's Locksmith holds company license LCO7891. Verification protects you more than anyone: a locksmith who will make a key for whoever asks will also make one for someone who wants your car. We record your name, the vehicle and its VIN on a work order, and we politely decline jobs where ownership can't be established. You can look up our license at search.dca.ca.gov.

Need a 2019 Nissan Murano key?

The quickest route to a working key for a 2019 Nissan Murano starts with a short phone call. Dial (951) 903-3193, share the VIN and where the car is parked in Southern California, and we'll tell you whether it's an on-site job, a dealer job, or a mix of both. No pressure and no surprise charges, just a straight plan.