Dads p38 was left for a week or so and it went flat. On Sunday I jump started it and left it running a while then went for a drive. Now yesterday I went to it and it wouldn't unlock on the remote, been in to get the spare and tha same happening. Thing is if I open it with the key will the alarm go off an I won't be able to stop it? And how do I get the car to recognise the keys again? Typically the manual is inside the car! Cheers mike