My acura did that. I think its a safety feature that it doesn't do all four doors. Think about it for a moment, what if you were a young woman in a dark parking lot, maybe you just want to unlock the one door get in and lock the door. Otherwise the other three doors are accessible and may be closer to an attacker. I got that from my sister.

ATX MTX swap, rear drum disc swap, drilled rotors, ported intake, optim throttle body, CAI, 7.5L MAF, adj. fuel regulator, longtube headers, underdrive pulley, no EGR, low inpedence bigger injectors, 2002 Focus Swap