car lock unlock problem

[mehfooz]

the car opens at time and dose not at times.

the alarm goes off when i open the car manually but this only happens on and off.

i have changed the battery of the remote of my car but somehow it didnt work. how can i stop this

[orfaan]

After changing the key FOB battery have u sync the remote?

While car is locked, insert the key on driver door side and turn to open. While it open press the open button on remote. Do same for lock.