On my Acura and other Honda's (besides other cars). Press the unlock button twice within 10 seconds and hold it down on the second press. The windows and moon roof will start opening as long as you hold down the unlock button. You can let go at any time if you want the windows only partially down. I have not tried this with my Rav4 Limited as I could not find anything about it in the owners manual. I would not think it would work but someone can try it if they want and report back.