2024 Tesla Model Y Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The Tesla Model Y utilizes a streamlined key fob programming process directly through the vehicle's infotainment system. There is no traditional "on-board" dance with turning the ignition on and off, as there is no physical ignition key.

Important Note: You will need at least one authenticated key (either a key card or an existing key fob) to add new keys to your Model Y.

1. Enter the vehicle with your existing, authenticated key card or key fob.
2. On the touchscreen display, tap Controls > Locks.1. Tap the + icon (Add Key) next to the "Keys" section.
3. When prompted, place your new, unprogrammed key fob on the center console behind the cup holders. Alternatively, if programming a key card, place it behind the cup holders on the console.
4. Place your existing, authenticated key card on the card reader behind the cup holders when prompted.
5. Follow any additional on-screen prompts to complete the pairing process. The touchscreen will confirm when the new key has been successfully added.

Battery replacement

1. Locate the small ridge on the side of the key fob. This is usually where the two halves of the fob meet.
2. Use a small, flat-head screwdriver or a plastic trim tool to carefully pry apart the two halves of the key fob. Start at the ridge and work your way around.
3. Once opened, you will see the CR2032 coin cell battery. Note the orientation of the battery (positive + side up).
4. Gently pry out the old battery using a non-metallic tool to avoid damaging the contacts.
5. Insert the new CR2032 battery with the positive + side facing up.
6. Align the two halves of the key fob and press them firmly together until they click securely into place.
7. Test the key fob's functionality with your vehicle.

Where to buy a replacement fob

• Tesla Service Center/Dealer: This is the most reliable option for obtaining a genuine OEM key fob. You'll be assured of compatibility and functionality. However, it's typically the most expensive route. Expect to pay $175 - $250 or more for the fob itself, plus potential service fees if you prefer they program it for you (though it's DIY programmable).
• Locksmith: An automotive locksmith specializing in Tesla vehicles might be able to source and program a new key fob. The cost will likely be less than a deal, ranging from $150 - $220, including programming. Ensure the locksmith has the necessary tools and expertise for Tesla systems.
• Amazon/Online Retailers: You may find third-party key fob shells or unprogrammed key cards online. Genuine Tesla fobs are rare or unverified from these sources. While seemingly cheaper initially (as low as $30 - $80 for cards, $100 - $150 for unverified fobs), you run the risk of purchasing incompatible or low-quality products. It's crucial to verify the seller and product compatibility rigorously. Always prioritize a return policy. Some "aftermarket options" are primarily key rings with integrated chips that replicate a key card's function but do not offer full fob functionality.

If on-board programming isn't supported

Good news! On-board programming is supported for the 2024 Tesla Model Y. As long as you have at least one working key card or fob, you can add new keys yourself using the vehicle's touchscreen, as outlined in the "Step-by-step on-board programming" section.

Regarding the immobilizer transponder: Tesla vehicles use an advanced RFID (Radio-Frequency Identification) system embedded within the key card and key fob for vehicle authentication. This system is integral to the vehicle's security and relies on the successful pairing process described above. There isn't a separate "transponder" to program in the traditional sense; it's all handled by the vehicle's secure key management system.

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