1. 07 Impala LS keyless remote problems

    General Tech
    I have a 2007 Impala LS, 3.5 w/55K on it that I just got. Great car with one exception. You lock the car with the remotes and when you come back later (15 minutes+), nothing! After manually unlocking the door and opening it (interior lights on) then the remotes work again. While they're working...