Actually , the keyless entry pad on the drivers door does not have a battery inside
The remotes take a battery or 2
How do you remove and replace the battery on a 2001 Ford F150?
To change the battery in a Ford (2005) F150 pickup truck - one needs to open the hood and identify where the battery is. It should be on the passenger side, right next to the chassi. You need to disconnect the positive and negative leads and unscrew the bolts holding the battery. You then can replace the battery using the same setup.
Disconnect and remove the battery. Cut off the spoiled terminal and replace. Replace battery. Reconnect.
how do i program it
if you have keyles entry the battery in the remote might be dead which would mean you would need a new one
I need to change out the alternator on my 2001 f150 supercrew. how do I do it?
the manufacturer or dealership
That is just a natural occurance , the battery cable connections have to be serviced
dead battery , poor cable connection to battery
Follow this link - http://underground-secret.com/ford_keyless_entry_code.html
The keypad doesn't take batteries , the remote takes a battery or batteries
Rayovac BR2335