Reprogramming your 2003 Avalon's keyless entry feature takes only a couple of minutes.
The Toyota 2003 Avalon's keyless entry feature can be programmed yourself, without any need to visit a dealership. There is a specific method for programming this feature on the Avalon. Before you begin, make sure that the key is out of the ignition, the doors are unlocked, and that the driver-side door is the only one open. With the right instruction, you will be using the keyless entry remote in no time at all.
Instructions
1. Put the car key into the ignition and remove it twice. Do not turn the key once it is inserted. Complete this step within five seconds.
2. Close the driver-side car door and reopen it twice. Put the key back into the ignition and remove it. This step must be completed within 40 seconds.
3. Close the driver-side door and open it again two more times. Put the key back into the ignition. Close the driver-side door once more, turn the key to On, then back to Off and remove it. Complete this step within 40 seconds. After three seconds, you should hear the doors lock and unlock automatically. This means that programming mode has been accessed correctly. If you do not hear the doors lock and unlock, repeat Steps 1 through 3.
4. Hold down both the Lock and Unlock buttons for a second and a half, then release them at the same time.
5. Hold down the Lock button immediately on the remote for two seconds. You will hear the doors lock and unlock once again, indicating that programming was accomplished. If you do not hear the door locks, repeat Steps 4 and 5, for the signal was not accepted during programming. Steps 4 and 5 will both need to be completed within 40 seconds.
6. Open the driver-side door to finish the programming procedure. Each remote that you programmed will now be ready to control the 2003 Avalon's keyless entry feature.
Tips Warnings
If you are programming multiple remotes, repeat Steps 4 and 5 for these as well.
