Cadillac CTS Key Fob Programming
Updated 2026 2003–2019 8 model years
Programming steps, the battery it takes, and the exact replacement fob for every Cadillac CTS model year we cover (2003–2019). Find your year in the table, then jump to the details for that generation.
Every Cadillac CTS model year
| Year | Programming | Key fob | Battery |
|---|---|---|---|
| 2019 | Proximity Key · 4/5-button | CR2032 battery on Amazon | |
| 2018 | Proximity Key · 4/5-button | CR2032 battery on Amazon | |
| 2017 | Proximity Key · 4/5-button | CR2032 battery on Amazon | |
| 2007 |
| Remote, Transponder Key · 4-button | CR2032 battery on Amazon |
| 2006 |
| Remote, Transponder Key · 4-button | CR2032 battery on Amazon |
| 2005 |
| Remote, Transponder Key · 4-button | CR2032 battery on Amazon |
| 2004 |
| Remote, Transponder Key · 4-button | CR2032 battery on Amazon |
| 2003 |
| Remote, Transponder Key · 4-button | CR2032 battery on Amazon |
2018–2019 Cadillac CTS
How to program your key fob
If your GM vehicle (Cadillac, Chevrolet, Buick) has push-button start, you can program smart keys yourself. Use Method A if you have two working smart keys; use Method B if you have one or none. Up to 8 smart keys — read the steps 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
2 versionsStays in your pocket — the car unlocks and starts without inserting a key.
4/5-button Proximity Key
Find on Amazon- FCC ID
- HYQ2AB
- OE part #
- 13510253, 13510254, 13544033, 13544034, 13580791, 13580811 +10 more
- Frequency
- 315 MHz
- Chip
- PHILIPS ID 46
5-button Proximity Key
Find on Amazon- FCC ID
- HYQ2EB
- OE part #
- 13510236, 13510255, 13544042, 13544044, 13580793, 13594020 +5 more
- Frequency
- 433 MHz
- Chip
- PHILIPS ID 46 GM EXT
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.
2017 Cadillac CTS
How to program your key fob
If your GM vehicle (Cadillac, Chevrolet, Buick) has push-button start, you can program smart keys yourself. Use Method A if you have two working smart keys; use Method B if you have one or none. Up to 8 smart keys — read the steps through first.
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
- HYQ2AB
- OE part #
- 13510253, 13510254, 13544033, 13544034, 13580791, 13580811 +10 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.
2004–2007 Cadillac CTS
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
On this GM vehicle you can program a new transponder key yourself using a key that already starts the engine. It takes under a minute per key.
Full steps: GM Transponder Key Programming With a Working Key
Takes about under a minute per key
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.
4-button Remote
Find on Amazon- FCC ID
- L2C0005T
- OE part #
- 12223132, 12223134, 16263074, 16263074-99, 9378610, 9378620
- Frequency
- 315 MHz
- Chip
- 101 CHIP HORIZ (ON BOARD)
Transponder Key
3 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- GM-39
- OE part #
- B102, P1113
Transponder Key
Find on Amazon- Key blank
- B102
- OE part #
- B102
Transponder Key
Find on Amazon- Key blank
- B106NP
- OE part #
- B106, B109, GM-37, JMA-B106
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 Cadillac CTS
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
On this GM vehicle you can program a new transponder key yourself using a key that already starts the engine. It takes under a minute per key.
Full steps: GM Transponder Key Programming With a Working Key
Takes about under a minute per key
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.
4-button Remote
Find on Amazon- FCC ID
- L2C0005T
- OE part #
- 12223130, 12223130-50, 12223132, 12223134, 16263074, 16263074-99 +2 more
- Frequency
- 315 MHz
- Chip
- 101 CHIP HORIZ (ON BOARD)
Transponder Key
3 versionsA cut metal key with a chip in the head. No buttons.
Transponder Key
Find on Amazon- Key blank
- GM-39
- OE part #
- B102, P1113
Transponder Key
Find on Amazon- Key blank
- B102
- OE part #
- B102
Transponder Key
Find on Amazon- Key blank
- B106NP
- OE part #
- B106, B109, GM-37, JMA-B106
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.
Cadillac CTS key fob battery
Your Cadillac CTS 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.
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