Program garage door opener.

Have to have a garage door with a motor.

You probably need to program the garage door opener,not the car.I have only had to program the Craftsman opener in my garage once(our 2005 Grand Caravan has a built in opener)The opener should have a programming button(my Craftsman opener's button is under one of the light covers).It will probably have the programming instructions near the button(in TINY print).You will want to have ALL of your garage remotes handy(to make sure they all still work after adding the car's remote-some openers have a maximum number of transmitters allowed.

Okay, first step is to clear any preprogramed doors or gates, engine must be off, press and hold the two outside buttons until the display confirms the operation (20 sec). this next step you will need the transmitter for the door you are programing, pick a button of the three you want to program, place the transmitter next to button and you will push them both at the same time and release, note the transmitter or hand held garage door opener what ever you call it, i dont want to confuse you ,when i say transmitter i mean the garage door opener, this must be close to buttons 1 inch at least, after you puhed and release both buttons at the same time then you are done. to program the other buttons just hold the next opener near the button and push both buttons, you dont need to hold the outside buttons again unless you want to erase all programing, good day let me know how it works.

There was a minor change for mine to work.. see below..

- you must park your Prius close to the gate opener, leaving it running (obviously not in the way of the gate closing)
- Hold the button the the mirror and then push your garage door remote button and hold until the light on the mirror starts to flasyh fast. THIS programs the button on the mirror, but not the garage opener - yet (this was key for me)
- locate the "learning button" on the opener itself
- press the "learning button" on your gate opener and then get back into the Prius within 30 seconds (more time than it sounds) and press the SAME Homelink button you just programmed above. I don't recall how long I held the pre-programmed button, but the light will flash as I recall.
- Then, when working the garage door, you may need to hold the mirror button for a good second for it to work - but I had tried for months to get mine to work, and finally after reading many posts, the above sequence worked on my 2008 Prius with my Lift Master, Security + rolling codes garage opener.

Just - program the button on the mirror with your remote FIRST.. the garage opener will not work.. then use the Learn button on the garage opener and the SAME BUTTON you just programmed.. and it worked great for me. Not programming the mirror button first will not work. Using only the Learn button will not work. You must program the mirror first with the remote, then use the learn button and the SAME button on the mirror. Hope this helps.

Scott 2008 Prius with Lift Master Security + opener.
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sounds like RF (radio Frequincy) intreferance. cell phone towers/tv/radio towers, I've even found the infa red on a security camera looking at driveway was disrupting the remotes A good garage door opener repairer with a m-18 rf tester can help. If RF is not in your home(walkie talkies..), Goverment controls that through the FCC- we aint able to do sqwat, u do have one last resort, change out the opener, its the freq. the opener is set at from manufacture- in other words-pot luck....

The garage door opener is needed to use the HomeLink system that is in your vehicle. This design is so that no one can program theirs to gain access to your garage. You will have to obtain a working remote and it will have to be programmed at the garage door.

All the info should be in the manual

Most of these programs require a remote. The steps to this require you to push remote button at the same time as the car button so the car can pick up on the signal. With out the remote you cannot program the car buttons.

www.homelink.com

I know what the problem is but never tried to resolve it. I have a 1998 XJ8 and went through the same problem. After numerous attempts to program the 4 channel built in opener I researched the problem and learned that the system in the car actually changes the code after every use. It's a security feature built in to the system. I simply started keeping my remote in the car.

There must be a way to disable the automatic randomizer so it retains the code from your remote opener everytime. Check with the dealer to see if it can be disabled and you will be in business. Please post the info if you get it.

Good Luck!