Car sat for six months. Battery went dead and replaced with new one. Got it started after new battery, now it won't start, the alarm led is either flashing bright or very dim flashing fast. I'm sure that it just needs reprogramming, how do you do this. The key fob is working because it will shut off the alarm and lock/ unlock the doors but the alarm may go off again if you open door or hood.

SOURCE: Need to reprogram door locks for 2004 Toyota Camry

I recently replaced the battery on my 2004 Toyota Camry. When I installed new battery the door locks will not stay unlocked once opened with remote. How do I reprogram?

SOURCE: 1999 Toyota Avalon, key fob locks doors, but will

hello the identical thing is happening to me did you find out what was wrong? regards Ellen

SOURCE: I've been using my key

Open the driver's door and climb in. Insert the key into the ignition and quickly pull it out. Do this twice within five seconds.

2 Close the driver's door and open it again. Reinsert the key into the ignition and pull it out. You must do this within 40 seconds.
3 Shut then open the driver's door twice again. Insert the key into the ignition. Close the door. Turn the key to the "On" position but do not crank the engine, Turn the key to the "Off" position and remove it. This must all be done within 40 seconds. If you have done everything properly, the door locks will cycle from unlocked to locked and back again within four seconds. If they do not, repeat this process.
4 Hold down the "Lock" and "Unlock" keys on the remote for one and a half seconds.
5 Press the "Lock" button on the remote for two seconds. The door locks will cycle again indicating successful programming.

SOURCE: replaced batery in key fob

reprogram the remote transmitter. first leave driver door open all other doors closed,key removed from the ignition switch. insert key into the ignition switch,then remove it.press lock and unlock on the vechicle door lock control switch at 1 second intervals 5 times. close and repoen drivers door.press lock and unlock on the vechicle lock control switch at 1 second intervals 5 times. insert key into ignition switch. switch ignition on and off twice to program a remote transmitter code whilst erasing the original codes or three timre to check how many remote transmitters are currently registered.remove key from the ignition switch.system should now lock and unlock.twice to indicate programming mode or one to four times,slowly to indicate number of remote transmitters registered.for the solara press and hold lock and unlock remote buttons together, press lock remote button for a second period of 1 second. system should now lock and unlock vechicle.once to confirm, twice to indicate registration has failed.if required repeat button procedure to program remaining remote transmitters.note to exit programming mode close drivers door or insert ignition key.maximum of 4 remote transmitters can be programmed.if akk failed let dealership reprogram remote transmitters.

SOURCE: 2004 toyota matrix-runs fine-near new

Thanks for choosing FixYa and welcome. You usually hear clicking when the battery or connection is bad. Since you hear nothing and you have interior power, it is not the battery, alternator, or connection. It appears to be a bad starter, starter solenoid, ignition module, or lock cylinder. Has you key been getting stuck recently? Ever? I would suggest finding your starter and hitting it. When you mess with the panic button, vibrations can trigger the starter, therfore starting the vehicle as you have said. Also, the security/alarm can cause a vehicle to not start also. But first, try hitting the starter. Do you have an alarm light on? Have you tried entering your security code? Let me know please and thanks.