I'm not able to lock my car with the remote keypad anymore. Do I just buy a new one off of Ebay to replace it, or do I need to take into the local Mazda dealer and get it replaced?
I say open it up & replace your own battery. If broke then yes, score off ebay & hit online service manual stickied upinheeya somewhere to program it. Simple stuff. When is anything free at a dealer that isn't warranty or recall?
But check first - the fuse for the radio/clock controls the remote system as well.
Then swap the battery in the 'mote.
(and if that doesn't get it)
Buy a 'mote off the 'net (search). it wil come with directions (as long as you still have one working).