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Programming the key fob on a 2012 Toyota Camry can be best handled by a professional at the dealership. Special software and a cable for the OBD port are needed for this task. It is important to follow the instructions provided by the software manufacturer. To begin, ensure that all devices emitting radio frequencies are turned off. Start by holding the original key fob close to the start button for a brief period, then proceed with the programming of additional fobs. The Camry can store up to five keys, with two typically already saved from the factory. When selecting a smart key, make sure it matches the style of your original key.
To program a key fob for a 2012 Toyota Camry, start by pressing and holding the "unlock" and "lock" buttons on the fob for two seconds before letting go. Next, press and hold the "lock" button for around three seconds before releasing. You should see the door lock and unlock after completing these steps.
Michael S.'s tip from April 13, 2020 really came through for me with my 2012 Camry. Recently, my keyfob was acting up, randomly unlocking and locking the car every 20-30 seconds. Changing the battery didn't fix it - the keyfob just blinked 19 times without unlocking the car. Following Michael's advice, I sat in the car and held the buttons as instructed, trying different sequences when needed. After a few attempts, the locks engaged and the keyfob went back to working smoothly. Huge thanks to Michael!