my camry 05, i hardy use to activate my car alarm by a remote control, it install by toyota dealer cost $700, which is over a year now. i only use few time to lock/ or unlock door by a remote. most of the time i lock by key. but some time i try to lock the door by pressing a remote, my car alarm is activate on, then i try to unlock it by pressing a remote again, it wont unlock, it like jam. doesn't how many time i try, it still the same. i got 2 new set of remote control, still won't unlock it. if i try to open the car by key, the alarm make sound on and on. so i dont know what happen now, i think toyota dealer install incorrectly, i got no more warranty anymore. i have to use the key all time to lock door now. i find very angry that my car remote find it no use. if i lock the car by key, alarm wont activate. only press a remote then activate car alarm