The 2002–2004 Frontier uses the same key setup, so everything on this page applies to those years too. The full picture is on the Nissan Frontier key guide.

2003 Nissan Frontier: key facts

Key type: Transponder chip key
Push-to-start: No
Transponder chip: 4D60 (Texas fixed-crypto)
Programming: OBD
All keys lost: We can originate new keys on site

NATS arrives on the D22 (NI02/NSN11T2 key); 4-digit BCM-derived PIN, OBD programmable. Some base/fleet trucks may still be non-transponder — the key stamp settles it.

Same key system as the 2002–2004 Frontier

Nissan kept the Frontier's key system unchanged across 2002–2004, so everything about replacing a 2003 key — blanks, programming, and what happens if every key is lost — matches the rest of that run. The full year-by-year breakdown lives in our Nissan Frontier key guide.

What drives the price is the key type, whether you still have a working key, and where the car is parked. There's more on Nissan programming in general on our Nissan key page.

We cover all these cities

Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

2003 Nissan Frontier key replacement

2003 Nissan Frontier: key facts

Same key system as the 2002–2004 Frontier

We cover all these cities