Infiniti FX37 Key Fob Programming
Updated 2026 2013 1 model year
The Infiniti FX37 key fob has to be programmed by an automotive locksmith or dealer — there is no at-home procedure. Below is the exact replacement fob you need for each model year (FCC ID and part number), the battery it takes, and what programming costs.
Every Infiniti FX37 model year
| Year | Programming | Key fob | Battery |
|---|---|---|---|
| 2013 |
| Proximity Key · 4-button | CR2032 battery on Amazon |
2013 Infiniti FX37
Remote / key fob programming
We don't have verified do-it-yourself programming steps for this exact vehicle. A new key is best programmed by an automotive locksmith or dealer.
Order the correct replacement key/fob below (match the FCC ID on your current one), then have a locksmith or dealer cut and program it.
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fob
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4-button Proximity Key
Find on Amazon- FCC ID
- KR55WK49622
- OE part #
- 285E3-1AA0B, 285E3-1AA5B, 285E3-1AA7B, 285E3-1CA0A, 285E3-1CA5A, 285E3-1CA7A +2 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
Infiniti FX37 key fob battery
Your Infiniti FX37 key fob uses a CR2032 3V lithium coin cell. A fresh one typically lasts 3–5 years.
Buy Energizer CR2032 Lithium Coin Batteries (4-pack) on AmazonHow to replace the battery
- 1 Slide the release latch and pull the metal emergency key out of the fob.
- 2 Use that key (or a coin) to pry the two halves apart at the seam.
- 3 Lift out the old coin cell — note which side faces up.
- 4 Drop in the new battery the same way (printed + side usually faces the back cover).
- 5 Press the case back together until it clicks, then test lock/unlock and push-to-start.
Battery tips
- Use a fresh, name-brand 3V lithium cell — bargain cells drain quickly.
- Even with a dead fob battery you can usually still start the car by holding the fob against the start button — check your owner's manual.
- If the fob still won't work after a new battery, it may need re-syncing or programming.
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Rather hire a pro?
See what it actually costs, broken out by dealer, locksmith, and DIY: