Infiniti FX45 Key Fob Programming by Year
Can you program a FX45 fob without the dealer? For most years, yes. Pick your year for the route and best next step.
Find your year
| Year | DIY onboard? | How it programs | Working fob? | Erase risk | Confidence | Best next step |
|---|---|---|---|---|---|---|
| 2003–2007 | Yes | Yes - onboard relearn | — | Possible | High | Follow the steps below |
Infiniti FX45 key types & programming facts
2003-2007 Infiniti FX45 models in the US/Canada use a conventional metal ignition key with an immobilizer transponder plus a separate 4‑button keyless entry remote. Remote fobs can be programmed via an onboard procedure using the ignition key and power door locks, without a scan tool. Cutting and programming a new transponder key itself generally requires a locksmith or dealer with appropriate equipment, while customers can often add matching remotes if they have a working key.
Key types used on the FX45:
- transponder chip key with separate keyless entry remote (no push-to-start / no proximity system) (2003-2007)
2003–2007 Infiniti FX45
Route verified — exact steps vary by trim/equipment
Route verified as onboard programming (no dealer needed). The sequences below are general route guidance — use them only if your vehicle shows the same prompts and controls. If the prompts don’t match, stop and call us.
Show the programming methods (15 steps)
2) Programming Preconditions
3) Step-by-step Programming (non-Smart-Key)
4) Important Notes & Warnings
For the 2003–2007 FX45: FX45 key replacement & all compatible fobs →
How we validate this guide
Year coverage comes from our consolidated vehicle programming dataset. Route-level programming status is reviewed against internal route sheets and available manufacturer, security-access, and professional tool references. Exact button sequences are marked source-verified only when we have year/equipment-specific support; where a year is labeled “route verified, steps vary,” we confirm the exact fob, trim, and prompts before programming. Reviewed for route and safety by Mohammad H. Abdelhadi, ALOA-Certified Master Locksmith.
| Year | Route status | Exact steps |
|---|---|---|
| 2003–2007 | Route verified | General guidance |
Common questions
Does my 2003-2007 Infiniti FX45 use a smart key or push-button start?
No. These FX45 models use a standard metal ignition key with a transponder and a separate keyless entry remote, not a proximity smart key or push‑button start system.
Can I program a replacement remote for my FX45 myself?
Yes. The 2003-2007 FX45 supports onboard programming for compatible keyless entry remotes using an ignition-key and door-lock sequence, as long as you have a working key.
Is the keyless entry remote the same thing as the ignition key on this vehicle?
No. The FX45 uses a separate 4‑button remote for locks and a transponder ignition key for starting; they are distinct components.
Can you program a FX45 key fob without going to the dealership?
For most years, yes - the route is onboard relearn or an OBD tool, both of which a mobile locksmith handles at your location.
Does this program the remote only, or the transponder key too?
It depends on your key type. Tell us your FCC ID and we will confirm.
What if my year says professional programming required?
Those years need a programmer or security access; we bring the tool to you and program it on site.
How much does it cost?
It depends on year, key type, and whether you have a working key. Call (833) 439-8636 for a firm price before we dispatch.