The procedure is in the manual. If you don't have the manual then you can get help from one of the guys at
www.trailvoy.com
Try this site... http://www.cars101.com/subaru/keyless.html#alpine used it to program a remote for my 2005 Outback Wagon
This one is pretty easy. Press the button in the envoy that you want to program as your garage door opener until it starts blinking rapidly then press you original garage door opener while you are still pressing the program button. Hold like this for a couple of seconds and the button in the envoy should be ready to go
how do you program your keyless remote for 2003 Chevy blazer
How do i program my remote car starter / lawless remote
A dealership has to do it for you if it is the original from the dealer. If it is aftermarket, like one from car toys they will have to do it for you. Only the company that installed it will have the codes to program it. I have a 2003 xtreme myself, and i have a dealer keyless entry, but I had car toy's install an alarm with other remote functions, only they can program the newer one.
A 2003 Honda Civic with an OEM alarm system can enable program mode. This mode will allow the user to reset the alarm. To enable it turn the car on then press the lock button on the remote. Do this sequence three times in five seconds.
You can unlock the car with the remote or with the key in a door to shut off the factory alarm.
How program my keyless entry remotes for 2003 chevy malibu
This work only with existing remote. If you replace with new one you need to reprogram it. Put key in middle position and press once quick unlock. Wait several seconds until alarm light flesh. Now your remote is ready.
With a VAG-COM, or get the dealer to do it.
It should tell you in your owners manual.
when you hook up the battery and the alarm goes off hit the unlock button on your door lock remote.