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Resetting the security system on your 2002 Toyota Avalon is a simple process if you have your key on hand. Insert the key into the ignition and turn it to the "on" position without starting the engine. After waiting for ten minutes, turn off the power to the vehicle. Following these steps should allow you to start your vehicle without any security system problems. If this method does not work or your key is not being recognized, you can remove the vehicle's battery for 15 to 30 minutes to restore it to its original settings.
I'm sorry, but both of these options are not functioning.
To reprogram the security system on a 2002 Toyota Avalon, just turn the key to the accessory setting, let it sit for ten minutes, and then switch off the car.