Question 1

My key broke in the ignition. Can you get it out?

Accepted Answer

Yes, broken key extraction is a standard on-site job. The process uses specialized tools to remove the broken piece without forcing the cylinder. Worth knowing on this Murano: the ignition cylinder on this generation can pick up wear damage once a key snaps inside, because the broken piece tends to bind against the wafers while you're trying to get it out. Even after a clean extraction, the cylinder sometimes needs inspection before you trust it long-term.

Once the piece is out, a new key gets cut and programmed on site. The old key data stays registered unless you want it cleared, which is an option if you're worried someone else has a copy of the broken key.

Question 2

What exactly is a smart key, and what's inside the one for this Murano?

Accepted Answer

Your 2015 Murano's key is a 5-button Intelligent Key fob with a folded emergency blade tucked inside. The fob communicates wirelessly with the vehicle's immobilizer so the engine can start, and it handles your remote functions through the buttons. The transponder chip inside is what the immobilizer actually reads -- without it pairing correctly, the car cranks but won't fire.

If the outer plastic shell cracks or breaks but the electronics inside still work, a chip transplant into a new shell is often possible and costs less than a full replacement. If both are damaged, or if you've lost the fob entirely, we cut a new blade and program a new fob to the car at the OBD port, on site, wherever you are in North Park or the surrounding area.

Question 3

My Nissan is showing a key-not-detected warning. What should I check first?

Accepted Answer

Start with the CR2032. These fobs will drain a battery faster than you'd expect, and a low battery shows up as intermittent range issues or a key warning before it fails completely. Swap the battery and make sure it's seated flat with the contacts making solid contact on both sides -- a slightly bent clip is enough to cause problems even with a fresh cell.

If you've got a new battery and still get the warning, try this: hold the fob body directly against the start button area while pressing the brake. That's the backup read path for when the wireless signal is too weak. It bypasses the normal proximity range and reads the chip directly.

Still nothing after that? The issue could be the fob itself, the immobilizer antenna ring, or a weak 12-volt battery in the car -- low vehicle battery voltage causes all kinds of ghost electrical behavior on these Muranos, and forum threads are full of people who replaced their smart key before someone told them to check the car battery first. That's when you call us and we sort out which component is actually at fault before anything gets replaced.

Question 4

I bought a replacement fob online. Can I just program it myself, or do I need someone to do it?

Accepted Answer

You'll need someone with diagnostic equipment. The 2015 Murano smart key system does not have a driver-seat button sequence or ignition-turn relearn for fob registration. A new fob has to be enrolled through the OBD port with the right software reading the immobilizer. The fob you bought online is fine as hardware -- sourcing your own part is a reasonable way to manage costs, and we can program it when we arrive. Just confirm the dealer part number on the fob matches your vehicle before we get there.

Question 5

I lost both keys to my 2015 Murano. Is an all-keys-lost situation something you can handle?

Accepted Answer

Yes. All-keys-lost on this generation is a known job. The process involves connecting to the OBD port, running a security reset through the immobilizer, and then registering the new fob or fobs. The old lost keys get wiped from the system so they can't be used to start the car -- that's part of the process, not an add-on.

There is a timed security countdown built into the Nissan immobilizer reset sequence, so the job takes longer than a simple spare-key add. Plan for it to run longer than a standard add-a-key appointment. Everything gets done at your location, no tow required. I come to you in North Park or wherever the car is sitting.

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