Infiniti M45 Key Fob Programming by Year
Can you program a M45 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 |
|---|---|---|---|---|---|---|
| 2003–2005 | Yes | Yes - onboard relearn | No (all-keys-lost OK) | — | Med | Follow the steps below |
Infiniti M45 key types & programming facts
2003–2005 Infiniti M45 models for the U.S./Canada market use a standard mechanical ignition key with an embedded transponder chip plus a separate keyless entry remote fob, and do not use push‑button start. The keyless entry remote can be programmed onboard via the ignition‑key cycling procedure, while the engine immobilizer transponder portion requires appropriate key cutting and programming with capable equipment. Customers typically need at least one working key or must have a locksmith or dealer handle all‑keys‑lost situations.
Key types used on the M45:
- separate **transponder chip key** (mechanical ignition key with embedded transponder, remote functions in a separate fob) (2003-2005)
- separate **keyless entry remote fob** (no integrated key blade) (2003-2005)
Common fob FCC IDs: KBRASTU13 — check the back of your fob; we confirm the exact variant on site.
2003–2005 Infiniti M45
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 (18 steps)
Preparation Steps
Enter Programming Mode
Programming Multiple Transmitters
Exit Procedure and Troubleshooting Links
For the 2003–2005 M45: M45 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 |
|---|---|---|
| 2003–2005 | Route verified | General guidance |
Common questions
Does my 2003-2005 Infiniti M45 use a smart key or push-button start system?
No. These years use a conventional metal ignition key with a separate keyless entry remote, not a smart/proximity push-button start system.
Can I program a replacement remote for my 2003-2005 Infiniti M45 myself?
Yes. The keyless entry remote can be programmed onboard using an ignition-key cycling procedure; detailed instructions are published by remote suppliers.
Is the immobilizer chip in my M45’s key the same as the remote fob?
No. The transponder chip that allows the car to start is in the ignition key, while the separate remote fob only controls door locks and related functions.
Can you program a M45 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.