2023 Tesla Model Y Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2023 Tesla Model Y utilizes key cards, phone keys, and key fobs that are programmed directly through the vehicle's touchscreen. There is no traditional "on-board" programming sequence involving ignition cycles or door button presses. Instead, the process is integrated into the car's software.

To program a new key fob:

1. Access the "Locks" menu: From your Tesla's touchscreen, tap "Controls" > "Locks."
2. Add a new key: Tap the "+" sign to add a new key.
3. Scan an already paired key or key card: When prompted, place an already paired key card or key fob on the card reader behind the cupholders. This authorizes the addition of a new key.
4. Place the new key fob: Place the new, unprogrammed key fob on the card reader behind the cupholders.
5. Follow on-screen instructions: The touchscreen will guide you through the final steps to pair the new key fob.

Battery replacement

Replacing the battery in your 2023 Tesla Model Y key fob is a straightforward process.

1. Locate the seam: The key fob has a seam running along its edge.
2. Open the fob: Use a small, flat-bladed tool (like a jeweler's screwdriver) to carefully pry open the two halves of the key fob at the seam. Be gentle to avoid damaging the plastic.
3. Remove the old battery: Note the orientation of the battery (positive side up) and gently remove the old CR2032 coin cell battery.
4. Insert the new battery: Insert a new CR2032 battery with the positive (+) side facing up.
5. Close the fob: Carefully snap the two halves of the key fob back together, ensuring they are securely sealed.

Where to buy a replacement fob

• Tesla Service Center: You can purchase an OEM key fob directly from a Tesla Service Center. This ensures compatibility and proper functioning. Expect to pay around $175–$200 for the fob itself.
• Online Retailers (e.g., Amazon): You might find aftermarket or even OEM fobs on sites like Amazon. Be cautious and verify the FCC ID and part number to ensure you're getting a compatible product. Prices can vary widely, but aftermarket options might be slightly cheaper. However, confirm that the fob explicitly states compatibility with the Model Y's smart entry system and that it can be programmed to the vehicle.
• Locksmiths: While locksmiths can often program traditional key fobs, for a Tesla, the programming is done via the vehicle's software. A locksmith might be able to source an OEM fob and offer to assist with the in-car programming process if you're uncomfortable doing it yourself, but their primary value won't be in "programming" in the traditional sense.

If on-board programming isn't supported

The 2023 Tesla Model Y does support on-board programming for its key fobs through the vehicle's touchscreen, as described above. All programming is done via the vehicle's internal systems, meaning no special scan tools are required for key fob pairing. The immobilizer system is integrated into this intelligent key system, so once the key fob is successfully paired to the vehicle via the touchscreen, it is fully recognized by the immobilizer.

There are no key blade cuts required for the Tesla Model Y key fob, as it is a completely wireless system. The vehicle uses an advanced smart entry and start system.

Cost Expectations: Since you can program the key fob yourself, the primary cost is the key fob itself. If you purchase directly from Tesla, expect around $175–$200. If you choose an aftermarket option and program it successfully, you could save a bit, but always prioritize compatibility and functionality.

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