just purchased my first bmw. a 2001 325. how do i get the master key to work all on 2001 BMW 325i

it's functions like locking doors,etc.

Asked by for the 2001 BMW 325i
1 answer 1 comment
Are you talking about the push buttons or Fob controls. It would help if I had an answer before I go to bed.
first thanks for responding. fobs? i don't know yet what that means. locking/unlocking doors,trunk and any other function. is the battery dead? really in the dark here as i don't have manual,i'm old and somewhat stupid. any help or referral you can give me will be greatly appreciated.