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Nissan Altima Key Replacement
Nissan Altimas have been on Dallas–Fort Worth roads since the 2007 era, and across 6 key generations this model has used 5 different key systems — intelligent key smart-proximity (push-button trims) / remote-head transponder (turn-key trims); kr55wk48903 (smart); kr55wk49622 (some trims); intelligent key smart-proximity; kr5s180144014. Whichever yours is, DFW Keys 4 Cars cuts and programs it at your location, 24/7: spare keys, lost-everything replacements, fob programming, and lockouts. Call (214) 717-6398.
About Altima Keys
The table below is our verified key reference for the Nissan Altima — model years, key types, and the transponder/immobilizer family each generation uses. Generations overlap at boundary years, so we always confirm the exact part by VIN before dispatching.
| Model / Generation | Years | Key Type | Transponder / Immobilizer | Blade / FCC |
|---|---|---|---|---|
| Altima | 2007–2012 | Intelligent Key smart-proximity (push-button trims) / remote-head transponder (turn-key trims) | Philips Crypto 2 / Hitag 2 / ID46 / PCF7952 | DA34 emergency insert (smart) / NSN14 (remote-head) |
| Altima | 2007–2012 | KR55WK48903 (smart); KR55WK49622 (some trims) | 315 MHz | 285E3-JA05A |
| Altima | 2013–2018 | Intelligent Key smart-proximity | Philips Crypto 3 / Hitag 3 / ID47 / PCF7952X | DA34 emergency insert |
| Altima | 2013–2018 | KR5S180144014 | 433 MHz | 285E3-4RA0B |
| Altima | 2019–2022 | Intelligent Key smart-proximity | Hitag AES / ID4A / NXP PCF7953M, NCF29A1M | DA34 emergency insert |
| Altima | 2019–2022 | KR5TXN4 | 434 MHz | 285E3-6CA6A |
Security System & Immobilizer
Nissan’s NATS immobilizer dates to the late 1990s, evolving from early transponders through ID46 chips to the Intelligent Key proximity system that made push-button start mainstream.
On the Altima specifically, the immobilizer families we see are: Philips Crypto 2 / Hitag 2 / ID46 / PCF7952, 315 MHz, Philips Crypto 3 / Hitag 3 / ID47 / PCF7952X, 433 MHz, Hitag AES / ID4A / NXP PCF7953M, NCF29A1M. A key that is cut correctly but not programmed to this system will turn the locks and never start the engine — programming is the half of the job that matters.
Which key does your year have?
- 2007–2012: Intelligent Key smart-proximity (push-button trims) / remote-head transponder (turn-key trims) — Philips Crypto 2 / Hitag 2 / ID46 / PCF7952 (DA34 emergency insert (smart) / NSN14 (remote-head))
- 2007–2012: KR55WK48903 (smart); KR55WK49622 (some trims) — 315 MHz (285E3-JA05A)
- 2013–2018: Intelligent Key smart-proximity — Philips Crypto 3 / Hitag 3 / ID47 / PCF7952X (DA34 emergency insert)
- 2013–2018: KR5S180144014 — 433 MHz (285E3-4RA0B)
- 2019–2022: Intelligent Key smart-proximity — Hitag AES / ID4A / NXP PCF7953M, NCF29A1M (DA34 emergency insert)
- 2019–2022: KR5TXN4 — 434 MHz (285E3-6CA6A)
Our Altima Key Services
- Key replacement — lost, stolen or broken Altima keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — the cheap insurance; most Altima spares are done in one short visit
- Fob & transponder programming — remotes, fobiks and smart keys paired to the immobilizer
- Lockout service — damage-free entry when the keys are inside, 24/7
- Ignition repair — worn cylinders and keys that won’t turn
Nissan Altima Key FAQ
I lost the only key to my Altima. What now?
We come to the vehicle, verify ownership, cut a new key from the VIN, and program it on-site. No tow, no dealer wait — this is our most common Altima call.
Will a hardware-store copy start my Altima?
It will open the doors and nothing else on transponder-era cars — the chip inside the key must be programmed to the immobilizer, which is the part we do curbside.
My Altima is older — do you still stock keys for it?
Yes. We carry blanks and chips going back to the 2007–2012 generation (intelligent key smart-proximity (push-button trims) / remote-head transponder (turn-key trims)), and a code-cut fresh key usually turns a worn lock better than any copy of your worn key.
How fast can you reach my Altima in DFW?
We dispatch the nearest mobile unit across the whole metroplex, 24/7. Call (214) 717-6398 with your location and we’ll give you an honest ETA.