Infiniti QX4 Key Fob Programming
Updated 2026 1999–2004 6 model years
Programming steps, the battery it takes, and the exact replacement fob for every Infiniti QX4 model year we cover (1999–2004). Find your year in the table, then jump to the details for that generation.
Every Infiniti QX4 model year
| Year | Programming | Key fob | Battery |
|---|---|---|---|
| 2004 |
| Transponder Key | None (chip key) |
| 2003 |
| Remote, Transponder Key · 3-button | CR2025 battery on Amazon |
| 2002 |
| Remote, Transponder Key · 3-button | CR2025 battery on Amazon |
| 2001 |
| Transponder Key, Remote · 3-button | CR2025 battery on Amazon |
| 2000 |
| Transponder Key, Remote · 3-button | CR2025 battery on Amazon |
| 1999 |
| Transponder Key, Remote · 3-button | CR2032 battery on Amazon |
2004 Infiniti QX4
Remote / key fob programming
You can program Nissan remote-head keys yourself by cycling the key in the ignition. Have every remote with you — any you don't program during this procedure will stop working.
Full steps: Nissan Remote-Head Key Programming by Ignition Cycling
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Transponder Key
Find on Amazon- Key blank
- DAT-15
- OE part #
- DA35, DAT-15, X238
Transponder Key
Find on Amazon- Key blank
- AF01628002
- OE part #
- DA35, X238
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
2003 Infiniti QX4
Remote / key fob programming
You can program Nissan remote-head keys yourself by cycling the key in the ignition. Have every remote with you — any you don't program during this procedure will stop working.
Full steps: Nissan Remote-Head Key Programming by Ignition Cycling
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Remote
A separate key fob that only handles locking and unlocking.
3-button Remote
Find on Amazon- FCC ID
- CWTWB1U415, CWTWB1U733, CWTWB1U821, KBRASTU15
- OE part #
- 28268-5W500, 28268-5W501, 28268-5W50A, 28268-7Z800, 28268-C990A, 28268-C990C +4 more
- Frequency
- 315 MHz
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Transponder Key
Find on Amazon- Key blank
- DAT-15
- OE part #
- DA35, DAT-15, X238
Transponder Key
Find on Amazon- Key blank
- AF01628002
- OE part #
- DA35, X238
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
2002 Infiniti QX4
Remote / key fob programming
You can program Nissan remote-head keys yourself by cycling the key in the ignition. Have every remote with you — any you don't program during this procedure will stop working.
Full steps: Nissan Remote-Head Key Programming by Ignition Cycling
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Remote
2 versionsA separate key fob that only handles locking and unlocking.
3-button Remote
Find on Amazon- FCC ID
- CWTWB1U415, CWTWB1U733, CWTWB1U821, KBRASTU15
- OE part #
- 28268-5W500, 28268-5W501, 28268-5W50A, 28268-7Z800, 28268-C990A, 28268-C990C +4 more
- Frequency
- 315 MHz
3-button Remote
Find on Amazon- FCC ID
- KBRASTU10
- OE part #
- 28268-2W612, MODEL
- Frequency
- 315 MHz
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Transponder Key
Find on Amazon- Key blank
- DAT-15
- OE part #
- DA35, DAT-15, X238
Transponder Key
Find on Amazon- Key blank
- AF01628002
- OE part #
- DA35, X238
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
2001 Infiniti QX4
Remote / key fob programming
This remote can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new remote, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement remote below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Remote
2 versionsA separate key fob that only handles locking and unlocking.
3-button Remote
Find on Amazon- FCC ID
- KBRASTU10
- OE part #
- 28268-2W612, MODEL
- Frequency
- 315 MHz
3-button Remote
Find on Amazon- FCC ID
- KBRASTU09, MODEL
- OE part #
- 28268-2W610, 28268-7J100
- Frequency
- 315 MHz
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Transponder Key
Find on Amazon- Key blank
- DAT-15
- OE part #
- DA35, DAT-15, X238
Transponder Key
Find on Amazon- Key blank
- AF01628002
- OE part #
- DA35, X238
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
2000 Infiniti QX4
Remote / key fob programming
This remote can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new remote, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement remote below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Remote
A separate key fob that only handles locking and unlocking.
3-button Remote
Find on Amazon- FCC ID
- KBRASTU09, MODEL
- OE part #
- 28268-2W610, 28268-7J100
- Frequency
- 315 MHz
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Transponder Key
Find on Amazon- Key blank
- DAT-15
- OE part #
- DA35, DAT-15, X238
Transponder Key
Find on Amazon- Key blank
- AF01628002
- OE part #
- DA35, X238
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
1999 Infiniti QX4
Remote / key fob programming
This remote can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new remote, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement remote below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Key programming
This key fob can't be programmed with a do-it-yourself procedure. The vehicle needs a diagnostic tool connected to its OBD port to pair a new fob, so a replacement has to be set up by an automotive locksmith or a dealer.
Order the correct replacement fob below — match the FCC ID on your current fob first — then have a local automotive locksmith or the dealer program it to your vehicle.
Replacement key fobs
Find your key type below, then match the FCC ID printed on the back of your existing fob — or, for a plain transponder key, the blank code — to be sure of the right part.
Remote
2 versionsA separate key fob that only handles locking and unlocking.
3-button Remote
Find on Amazon- FCC ID
- KOBUTA3T
- OE part #
- 28268-0Z021, 28268-1W300, 28268-2Z021
- Frequency
- 315 MHz
3-button Remote
Find on Amazon- FCC ID
- KBRASTU09, MODEL
- OE part #
- 28268-2W610, 28268-7J100
- Frequency
- 315 MHz
Transponder Key
2 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- AF01627002
- OE part #
- X237
Transponder Key
Find on Amazon- Key blank
- DAT-16
- OE part #
- DA34, JMA-DA34, X237
Photos show the OEM part for each number listed. Aftermarket replacements sold online are often slightly different in appearance — the FCC ID, not the shape, is what determines whether a fob will work with your car.
- 2000, 2001, 2002, 2003
- CR2025 battery on Amazon
- 2004
- No battery
1999 Infiniti QX4 key fob battery
Your 1999 Infiniti QX4 key fob uses a CR2032 3V lithium coin cell. A fresh one typically lasts 3–5 years.
Buy Energizer CR2032 Lithium Coin Batteries (4-pack) on AmazonHow to replace the battery
- 1 Find the seam or small slot on the edge of the remote.
- 2 Twist a coin or small flathead in the slot to split the case open.
- 3 Remove the old coin cell and note the + side.
- 4 Fit the new battery with the + side matching, then close the case.
- 5 Press a button to confirm the LED lights, then test at the car.
Battery tips
- Use a fresh, name-brand 3V lithium cell — bargain cells drain quickly.
- Try not to touch both faces of the new battery; skin oils shorten its life.
- If the remote still doesn't work after a new battery, it may need re-syncing or programming.
2000, 2001, 2002, 2003 Infiniti QX4 key fob battery
Your 2000, 2001, 2002, 2003 Infiniti QX4 key fob uses a CR2025 3V lithium coin cell. A fresh one typically lasts 3–5 years.
Buy Energizer CR2025 Lithium Coin Batteries (4-pack) on AmazonHow to replace the battery
- 1 Find the seam or small slot on the edge of the remote.
- 2 Twist a coin or small flathead in the slot to split the case open.
- 3 Remove the old coin cell and note the + side.
- 4 Fit the new battery with the + side matching, then close the case.
- 5 Press a button to confirm the LED lights, then test at the car.
Battery tips
- Use a fresh, name-brand 3V lithium cell — bargain cells drain quickly.
- Try not to touch both faces of the new battery; skin oils shorten its life.
- If the remote still doesn't work after a new battery, it may need re-syncing or programming.
2004 Infiniti QX4 key fob battery
A plain transponder (chip) key has no battery. The immobilizer chip inside is powered by the car's ignition ring whenever you turn the key, so there's nothing to replace. If your key also has lock/unlock buttons, that remote portion uses a 3V coin cell — see the remote battery steps for that.
Battery tips
- If your engine won't start but the key turns, the issue is usually a worn key or the immobilizer reading the chip — not a battery.
- A spare chip key must be cut and programmed to your car before it will start the engine.
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