alright guys, so a noob needs some help. just bought my 06 TL last week. i have been messing with the MID and cant get the doors to auto lock at 10mph. when in the keyless mode on the display, where it says "auto lock" (or whatever) there is a > next to OFF (>OFF)...no matter what i hit (left or right arrows) it wont change from "OFF". i have messed with this till i have gotten cross eyed and cant get it to change. i bouhgt the car used obviously and only received 1 key remote which happens to be the #2 remote. i have tried all settings in both DRIVER 1 and 2 and i get no results. any advice would be GREATLY appreciated because my girlfriend keeps bringing it up that it wont auto lock and we're gonna get kidnapped or robbed at gunpoint

thanks in advance for your help