Ford Flex Key Fob Programming
Updated 2026 2009–2019 11 model years
Programming steps, the battery it takes, and the exact replacement fob for every Ford Flex model year we cover (2009–2019). Find your year in the table, then jump to the details for that generation.
Every Ford Flex model year
| Year | Programming | Key fob | Battery |
|---|---|---|---|
| 2019 | Proximity Key · 4/5-button | CR2025 battery on Amazon | |
| 2018 | Transponder Key, Proximity Key · 4/5-button | CR2025 battery on Amazon | |
| 2017 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2016 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2015 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2014 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2013 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2012 | Transponder Key, Proximity Key, Remote Head Key · 3/4/5-button | CR2025 battery on Amazon | |
| 2011 | Transponder Key, Remote Head Key · 3/4-button | CR2032 battery on Amazon | |
| 2010 | Transponder Key, Remote Head Key · 3/4-button | CR2032 battery on Amazon | |
| 2009 | Transponder Key, Remote Head Key · 3/4-button | CR2032 battery on Amazon |
2019 Ford Flex
Remote / key fob programming
On this Ford, the remote functions are built into the smart proximity key — there's no separate remote to program. Use the key programming steps to set up the proximity key, which handles remote lock, unlock, and start.
Full steps: Ford Proximity Keys: No Separate Remote to Program
Key programming
If your Ford has push-button start, you can add a new smart key yourself when you already have two working smart keys. You'll have 30 seconds to complete the sequence, so read it through first. Up to 4 smart keys total.
Full steps: Ford Smart Key Programming: Lock and Unlock Button Sequence
Replacement key fob
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
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.
2018 Ford Flex
Remote / key fob programming
On this Ford, the remote functions are built into the smart proximity key — there's no separate remote to program. Use the key programming steps to set up the proximity key, which handles remote lock, unlock, and start.
Full steps: Ford Proximity Keys: No Separate Remote to Program
Key programming
If your Ford has push-button start, you can add a new smart key yourself when you already have two working smart keys. You'll have 30 seconds to complete the sequence, so read it through first. Up to 4 smart keys total.
Full steps: Ford Smart Key Programming: Lock and Unlock Button Sequence
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2016–2017 Ford Flex
Remote / key fob programming
On this Ford, the remote functions are built into the smart proximity key — there's no separate remote to program. Use the key programming steps to set up the proximity key, which handles remote lock, unlock, and start.
Full steps: Ford Proximity Keys: No Separate Remote to Program
Key programming
If your Ford has push-button start, you can add a new smart key yourself when you already have two working smart keys. You'll have 30 seconds to complete the sequence, so read it through first. Up to 4 smart keys total.
Full steps: Ford Smart Key Programming: Lock and Unlock Button Sequence
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Remote Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4/5-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U331, CWTWB1U345, CWTWB1U793, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 164-R7996, 164-R8000, 164-R8001, 164-R8002, 164-R8020, 164-R8021 +27 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2015 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. Try Method A first; if it doesn't work, use Method B. Don't press the brake pedal at any point.
Key programming
This Ford comes in two ignition types — match yours. A regular key ignition uses two working keys to add a new one; push-button start uses two working smart keys. Read your method through first.
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Remote Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4/5-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U331, CWTWB1U345, CWTWB1U793, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 164-R7996, 164-R8000, 164-R8001, 164-R8002, 164-R8020, 164-R8021 +27 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
4 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2014 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. Try Method A first; if it doesn't work, use Method B. Don't press the brake pedal at any point.
Key programming
This Ford comes in two ignition types — match yours. A regular key ignition uses two working keys to add a new one; push-button start uses two working smart keys. Read your method through first.
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Remote Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4/5-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U331, CWTWB1U345, CWTWB1U793, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 164-R7996, 164-R8000, 164-R8001, 164-R8002, 164-R8020, 164-R8021 +27 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2013 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. Try Method A first; if it doesn't work, use Method B. Don't press the brake pedal at any point.
Key programming
This Ford comes in two ignition types — match yours. A regular key ignition uses two working keys to add a new one; push-button start uses two working smart keys. Read your method through first.
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 164-R8092, 164-R8094, 164-R8103, 5921285, 5921286 +7 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Remote Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4/5-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U331, CWTWB1U345, CWTWB1U722, CWTWB1U793, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 164-R7003, 164-R7004, 164-R7005, 164-R7013, 164-R7014, 164-R7015 +51 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2012 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. There are two common methods — try Method A first, and if it doesn't work use Method B. Do not press the brake pedal at any point.
Full steps: Ford Remote Programming: Reset and Relearn Every Remote
Key programming
You can add a new key to this Ford yourself if you already have two keys that start the engine. The new key must be cut first, and it has to be a genuine key — a cloned hardware-store key won't work.
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.
Proximity Key
Stays in your pocket — the car unlocks and starts without inserting a key.
4-button Proximity Key
Find on Amazon- FCC ID
- M3N-5WY8609, M3N5WY8609, M3N5WY8610
- OE part #
- 164-R8091, 5921285, BA1T, BT4T, BTAT
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
Remote Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4/5-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U322, CWTWB1U331, CWTWB1U345, CWTWB1U722, CWTWB1U793, CWTWBIU322, CWTWBIU331, CWTWBIU345, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 15K601535093529138, 164-R7003, 164-R7004, 164-R7005, 164-R7006, 164-R7013 +66 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2011 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. There are two common methods — try Method A first, and if it doesn't work use Method B. Do not press the brake pedal at any point.
Full steps: Ford Remote Programming: Reset and Relearn Every Remote
Key programming
You can add a new key to this Ford yourself if you already have two keys that start the engine. The new key must be cut first, and it has to be a genuine key — a cloned hardware-store key won't work.
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 Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U322, CWTWB1U331, CWTWB1U345, CWTWB1U722, CWTWB1U793, CWTWBIU322, CWTWBIU331, CWTWBIU345, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 15K601535093529138, 164-R7003, 164-R7004, 164-R7005, 164-R7006, 164-R7013 +63 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2010 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. There are two common methods — try Method A first, and if it doesn't work use Method B. Do not press the brake pedal at any point.
Full steps: Ford Remote Programming: Reset and Relearn Every Remote
Key programming
You can add a new key to this Ford yourself if you already have two keys that start the engine. The new key must be cut first, and it has to be a genuine key — a cloned hardware-store key won't work.
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 Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U322, CWTWB1U331, CWTWB1U345, CWTWB1U722, CWTWB1U793, CWTWBIU322, CWTWBIU331, CWTWBIU345, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 15K601535093529138, 164-R7003, 164-R7004, 164-R7005, 164-R7006, 164-R7013 +61 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
2009 Ford Flex
Remote / key fob programming
Programming a remote on this Ford resets every remote for the vehicle, so you reprogram them all together. There are two common methods — try Method A first, and if it doesn't work use Method B. Do not press the brake pedal at any point.
Full steps: Ford Remote Programming: Reset and Relearn Every Remote
Key programming
You can add a new key to this Ford yourself if you already have two keys that start the engine. The new key must be cut first, and it has to be a genuine key — a cloned hardware-store key won't work.
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 Head Key
One piece: a cut metal blade with the lock/unlock buttons built into the head.
3/4-button Remote Head Key
Find on Amazon- FCC ID
- CWTWB1U212, CWTWB1U322, CWTWB1U331, CWTWB1U345, CWTWB1U722, CWTWB1U793, CWTWBIU322, CWTWBIU331, CWTWBIU345, GQ43VT11T, OUC6000022, OUCD6000022
- OE part #
- 15K601535093529138, 164-R7003, 164-R7004, 164-R7005, 164-R7006, 164-R7013 +62 more
- Frequency
- 315 MHz
- Chip
- TEXAS ID 4D 63 80 BIT
Transponder Key
5 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- BH75
- OE part #
- BH75
Transponder Key
Find on Amazon- Key blank
- FO25
- OE part #
- 11196FD
Transponder Key
Find on Amazon- Key blank
- AF00007290
Transponder Key
Find on Amazon- Key blank
- FO-15DE
- OE part #
- JMA-H75
Transponder Key
Find on Amazon- Key blank
- H92PT
- OE part #
- 5944375, 5944486, H92-PT, H92PT
- Chip
- 4D-63 80-BIT
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.
- 2009, 2010, 2011
- CR2032 battery on Amazon
- 2012, 2013, 2014, 2015, 2016–2017, 2018, 2019
- CR2025 battery on Amazon
2009, 2010, 2011 Ford Flex key fob battery
Your 2009, 2010, 2011 Ford Flex 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 Look for a small notch or screw on the side of the fob where the key blade meets the buttons.
- 2 Pry the housing apart with a coin or small flathead (or remove the screw).
- 3 Pop out the old coin cell, noting its orientation.
- 4 Insert the new battery the same way up, then snap the case shut.
- 5 Test the buttons — if they work, you're done.
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 buttons still don't respond after a new battery, the remote may need re-syncing or programming.
2012, 2013, 2014, 2015, 2016–2017, 2018, 2019 Ford Flex key fob battery
Your 2012, 2013, 2014, 2015, 2016–2017, 2018, 2019 Ford Flex 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 Slide the release latch and pull the metal emergency key out of the fob.
- 2 Use that key (or a coin) to pry the two halves apart at the seam.
- 3 Lift out the old coin cell — note which side faces up.
- 4 Drop in the new battery the same way (printed + side usually faces the back cover).
- 5 Press the case back together until it clicks, then test lock/unlock and push-to-start.
Battery tips
- Use a fresh, name-brand 3V lithium cell — bargain cells drain quickly.
- Even with a dead fob battery you can usually still start the car by holding the fob against the start button — check your owner's manual.
- If the fob still won't work after a new battery, it may need re-syncing or programming.
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