Hi guys I just parked my car and I wanted to lock it by the remote but it didn't work I can hear beep but it doesn't work at all it beep with every button but doesn't work .
Ist the battery Or something else ?

Thanks

 

is the battery old ?

 

I believe that means a door is still open. It’s like a preventative to locking the keys in the car. Maybe see if the little door on your ignition switch is sticking open after you pull the key out? Could be a good time to lube all the key lock cylinders as a preventative.

 

There is a difference between the 'acknowledgement' tone and ERROR tone.

One is HAPPY and the other is as Addicted2boost states, something is not right with the system.