2015 Tesla Model S — Key Fob Programming

Quick reference

Step-by-step on-board programming

Unfortunately, the 2015 Tesla Model S does not support DIY, on-board programming for key fobs. Tesla vehicles utilize a secure, proprietary system that requires specialized diagnostic tools and software to pair new key fobs with the vehicle. This process can only be performed by a Tesla Service Center.

Attempting to program a new key fob yourself without the proper equipment can result in the fob not functioning correctly or, in some cases, rendering the fob unusable. It's crucial to rely on authorized service for this procedure to ensure proper functionality and security.

Battery replacement

Replacing the battery in your 2015 Tesla Model S key fob is a straightforward process:

1. Locate the small release button on the side of the key fob. Press and hold this button while gently pulling the two halves of the fob apart.
2. Carefully separate the two halves. You'll see a rubber gasket; remove it.
3. Gently remove the circuit board.
4. Locate the two CR2032 coin cell batteries. Note their orientation (+/-).
5. Gently pry out the old batteries, usually with a small screwdriver or plastic pry tool.
6. Insert the new CR2032 batteries with the positive side (+) facing up.
7. Replace the circuit board, ensuring it's seated correctly.
8. Reinstall the rubber gasket.
9. Carefully press the two halves of the key fob back together until they click securely in place.

It's recommended to use good quality, fresh CR2032 batteries for optimal performance.

Where to buy a replacement fob

• Tesla Service Center: This is the most reliable option, as you're guaranteed to receive a genuine, pre-programmed fob directly from the manufacturer. The downside is the cost, which can typically range from $250 to $400 or more for the fob and programming.
• Locksmiths: Some specialized automotive locksmiths may have the necessary diagnostic tools to program Tesla key fobs. However, this is less common than for other car brands due to Tesla's proprietary system. If you can find one, their cost might be slightly lower than the dealership, potentially in the $200 to $350 range, but always verify their capability for Tesla vehicles beforehand.
• Online Retailers (e.g., Amazon, eBay): You can often find "aftermarket" or refurbished OEM Tesla key fobs online. Prices can vary widely, from $100 to $250. However, be extremely cautious. Many of these fobs are not genuinely new, may not be compatible with your specific year/model, or may be difficult/impossible for even a Tesla Service Center to program due to security protocols. It is highly recommended to purchase new key fobs directly from Tesla.

If on-board programming isn't supported

Since on-board programming is not supported for the 2015 Tesla Model S, you will need to take your vehicle to a Tesla Service Center to have a new key fob programmed.

The cost for this service typically includes both the new key fob itself and the labor required for programming. As mentioned, expect to pay between $250 and $400 or more, depending on your location and the specific service center's pricing.

Tesla vehicles do not use a traditional immobilizer transponder chip in the same way many other car brands do. Instead, the key fob communicates with the vehicle's secure system wirelessly for authentication. This integrated security system is what necessitates specialized equipment for programming new fobs, ensuring a high level of anti-theft protection.

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