Reprograming Alarm/starter Hornet Remote

Recently I was changing battery in one of mine Remotes DEI475 Hornet model 553T. And I guess I've kept the battery for more then 30 sec out. Now The Remote is not corresponding with the CPU in the car.
I also went out and bought 1 extra remote on eBay. But that one isn't programmed as well.

Any one know how to Program no factory car alarm???

HELP HELP HELP

Thank you

Yep, do you know where the valet switch is located in your car? I mean the black push button and not the flip switch? If so, open a door, turn the ignition on then press that button, release, then press and hold it. Then while you have it held in, press the lock button on your remotes. That should be it then. Turn off the ignition and you should here the alarm chirp a few times to tell you it is out of programming.

I did fallow your instructions, and by pushing Lock button on the remote. IT DOSE WORK, but only that button works the 3 remaining don't DO anything, The Lock button opens the door, and locks it!!! My remotes are 4 buttons. where I push bottom 2 together and it starts the car, "alarm/starter"

On most DEI products you either have to program each button individually, or see if your trasmitter will work with the standard button configuration. So rather than pushing the button once after turning your ignition on, press it 8 times and then hold the button down. The siren should chirp eight times to confirm that it's ready to receive the transmitter's signal, so while holding that button down press the lock button, and you should get a confirmation chirp. Shut the ignition off and then try out all your features on the remote to make sure it worked.

Thank you BRANDISH
That seemed to work, all 4 buttons work now (close,open,siren,silence-Aux, Remote START).

Sorry, it's remote start season and been real busy. glad you got it fixed.