What year ranges does this guide cover?

This programming guide is limited to the source-backed clusters 2000u20132001 and 2002u20132003 for the Infiniti QX4 Key Fob remote-transmitter procedure.

Does this program only the remote, or also the transponder?

This guide covers the keyless-entry remote transmitter portion of the Infiniti QX4 Key Fob. It does not cover immobilizer or transponder programming.

What if the steps do not work and there is no hazard lamp flash?

No hazard lamp flash generally indicates timing or sequence was not accepted. Recheck the six key insert/remove cycles within 10 seconds, full key withdrawal, and the 5-second button-press windows.

Why must all remotes be present during the session?

Entering programming mode erases stored transmitter codes. Any remote not re-added during the same session may stop working afterward.

Can a replacement remote still be programmed using this procedure?

A replacement remote can often be added if it is compatible and the steps are followed exactly, including the timing rules and hazard lamp flash confirmations.

Infiniti QX4 Key Fob Programming by Year

Can you program a QX4 fob without the dealer? For most years, yes. Pick your year for the route and best next step.

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Find your year

Year	DIY onboard?	How it programs	Working fob?	Erase risk	Confidence	Best next step
2000–2001	Yes	Yes - onboard relearn	No (all-keys-lost OK)	Yes	High	Follow the steps below
2002–2003	Yes	Yes - onboard relearn	No (all-keys-lost OK)	Yes	High	Follow the steps below

Infiniti QX4 key types & programming facts

For the 2000–2003 Infiniti QX4, the ignition is operated by a conventional metal key while locking and unlocking are controlled by a separate keyless entry remote fob. Remote transmitters can be added or replaced using an onboard programming sequence that cycles the ignition and uses the vehicle’s existing receiver to learn the new remotes, without diagnostic equipment. Cutting a new metal key requires matching the original key’s mechanical pattern, which most locksmiths or dealers can duplicate.

Key types used on the QX4:

standard metal key with separate remote keyless entry fob (no transponder chip documented in sources) (2000-2003)

Common fob FCC IDs: KBRASTU15, KBRASTU09, KBRASTU10, KOBUTA3T — check the back of your fob; we confirm the exact variant on site.

2000–2001 Infiniti QX4

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 (25 steps)

Preparation

Programming step

1 Possess all transmitters to be programmed before entering programming mode

Programming step

2 Warning that programming erases all previous transmitter codes from vehicle memory

Programming step

3 Note that other transmitters will be nonfunctional until reprogrammed

Close the doors

4 Close and lock all doors with driver-side power lock/unlock switch

Programming step

5 Be ready to perform key insertion/removal sequence within specified time limits

Enter Programming Mode

Insert the key

1 Insert key into ignition and remove it from cylinder at least six times within 10 seconds

Doors lock-cycle (confirm)

2 Hazard lamps will flash to confirm successful entry into programming mode

Programming step

3 Withdraw key completely from ignition cylinder each time

Programming step

4 Avoid performing the insertion/removal sequence too quickly to ensure mode entry

Insert the key

5 After sequence, insert key and turn to ACC position

Program First Transmitter

Wait / timing window

1 Within 5 seconds of turning key to ACC, push ANY button on the remote transmitter

Doors lock-cycle (confirm)

2 Hazard lamps should flash to confirm transmitter programming

Press / hold a fob button

3 Do not press the remote button more than once during this step

Programming step

4 Warning that pressing the button more than once may cause programming failure

Programming step

5 Ensure timing is observed for successful programming

Program Additional Transmitters

Press LOCK + UNLOCK

1 For remaining transmitters (including old ones), unlock then lock all doors using driver-side power lock/unlock switch

Wait / timing window

2 Within 5 seconds of locking, push ANY button on the next remote

Doors lock-cycle (confirm)

3 Hazard lamps should flash to confirm each additional transmitter

Press LOCK + UNLOCK

4 Repeat unlock/lock and button-press steps for each transmitter to be programmed

Programming step

5 Include any existing transmitters in the reprogramming sequence

Exit Programming and Final Steps

Turn ignition to ON

1 Turn key to OFF position after programming all transmitters

Remove the key

2 Remove keys from ignition

Press LOCK + UNLOCK

3 Unlock doors using driver-side power lock/unlock switch

Programming step

4 Open driver-side door to complete exit from programming procedure

Programming step

5 Reminder links provided for battery replacement and key fob replacement resources

Keys & fobs that fit the 2000–2001 QX4

Nissan/Infiniti OEM Remote Key FobRemoteView fob →

For the 2000–2001 QX4: QX4 key replacement & all compatible fobs →

2002–2003 Infiniti QX4

Route verified — exact steps vary by trim/equipment

Show the programming methods (22 steps)

Vehicle/Document Identification

Programming step

1 Title: Infiniti QX4 Keyless Entry Remote Fob Smart Key Programming Instructions

Programming step

2 Additional links: Home | Disclaimer | YouTube | Privacy Policy

Preparation and Important Notes

Programming step

1 All transmitters to be used must be in possession before entering programming mode

Programming step

2 Programming erases all previous codes from vehicle memory

Programming step

3 Other transmitters become nonfunctional until reprogrammed after procedure

Press LOCK + UNLOCK

4 Doors must be closed and locked with driver’s side power lock/unlock switch before starting

Programming step

5 Key must be withdrawn completely from ignition cylinder each time during initial step

Entering Programming Mode

Remove the key

1 Insert and remove key from ignition cylinder at least six times within 10 seconds

Programming step

2 Hazard lamps flash if the initial step performed successfully

Programming step

3 Warning that performing the insert/remove step too fast prevents entering programming mode

Insert the key

4 After successful flashing, insert key and turn to ACC position

Wait / timing window

5 Within 5 seconds of ACC position, push ANY button on remote once to trigger hazard lamp flash

Programming Additional Transmitters

Press / hold a fob button

1 Do not press remote button more than once during programming step or programming will fail

Press LOCK + UNLOCK

2 For remaining transmitters, unlock then lock all doors using driver’s side power switch

Wait / timing window

3 Within 5 seconds of locking, push ANY button on the next remote to cause hazard lamps to flash

Press LOCK + UNLOCK

4 Repeat unlock/lock then button-press sequence for each transmitter, including existing ones

Programming step

5 Each transmitter must be programmed in sequence during the same session

Exiting Procedure and Troubleshooting Links

Remove the key

1 Turn key to OFF position and remove keys from ignition to exit programming

Press LOCK + UNLOCK

2 Unlock doors using driver’s side power lock/unlock switch and open driver’s door after removing key

Programming step

3 If key fob not working, suggestion to try replacing the battery (link provided)

Programming step

4 Link provided to find the correct key fob battery

Programming step

5 Link provided to find replacement key fob options

Keys & fobs that fit the 2002–2003 QX4

Nissan/Infiniti OEM Remote Key FobRemoteView fob →

For the 2002–2003 QX4: QX4 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
2000–2001	Route verified	General guidance
2002–2003	Route verified	General guidance

Common questions

Does my 2000-2003 Infiniti QX4 use a transponder chip key?

Available locksmith and key-fob sources describe a standard metal key with a separate remote fob; they do not document a separate transponder chip system for 2000–2003 QX4 keys.

Can I program a replacement remote for my Infiniti QX4 myself?

Yes. 2000–2003 QX4 remotes can be programmed by an onboard procedure that involves cycling the ignition and teaching the vehicle to recognize the new fob.

Which remote FCC IDs are associated with Infiniti QX4 keyless entry?

Key-fob suppliers list FCC IDs KBRASTU15, KBRASTU09, KBRASTU10, and KOBUTA3T as applicable to Infiniti QX4 keyless entry across 1997–2003 model years.

Can you program a QX4 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.

Need your QX4 fob programmed? We come to you, 24/7.

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