Once a phone has been authenticated, it no longer requires an internet connection to be used as a phone key for Model 3. Therefore, if more than three phone keys are detected and you want to authenticate or pair a different phone, move the other connected phone key(s) out of range or turn off its Bluetooth setting. Model 3 can connect to three phone keys simultaneously. To view a list of keys that can currently access Model 3, or to remove a phone key, touch Controls > Locks (see Managing Keys).

Follow the prompts on the mobile app and vehicle touchscreen to set Main screen, or navigate to Security > Set Up Phone Open the Tesla mobile app and touch Set Up Phone Key on the Keep in mind that your phone must have enough battery power to run Bluetooth and that many phones disable Bluetooth when the battery is low. Model 3 communicates with your phone using Bluetooth. Model 3 supports a total of 19 keys, which can include phone keys, key cards, and up to four key fobs. The key fob also supports automatic locking and unlocking, if available in your region (see Walk-Away Door Lock) and can be used as a backup to your phone key. Key fob - The key fob (if equipped) allows you to press buttons to open the front and rear trunks, and unlock, lock, and drive Model 3.Or is lost or stolen, use your key card to unlock, drive, and lock Model 3. In situations where your phone key has a dead battery, Unlike the phone key and key fobs, the key card does not support automatic locking and unlocking. The key card is used to 'authenticate' phone keys to work with Model 3 and to add or remove other keys.

Key card - Tesla provides a key card that communicates with Model 3 using short range radio-frequency identification (RFID) signals.

A phone key supports automatic locking and unlocking.

Phone key - You can set up your personal phone as a 'phone key' that communicates with Model 3 using Bluetooth.

Model 3 supports the following types of keys:

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