If it is the smart key version, the battery should be replaced every year. Also, do not get the thing wet, as corrosion will cause need for replacing it prematurely.
The regular fob batteries should be replaced every 3-5 years.
The original batteries could have been a few years old when the vehicle was built, so perhaps the maker of those remotes was still going through old inventory.
Replace before needed, just like for the smoke detectors at home
put new battery in
change battery in a 2007 toyota avalion key fob
The battery in the key fob of a Toyota Sequoia is changed by using a coin to separate the two halves. The coin style battery can then be pushed out and a new battery put in.
LR 2032
the key fob battery is the battey in a key fob torch
A small battery that fits in a key fob or remote.
It indicates the battery life left in your key fob battery.
Time for a new battery in the fob.
Remove the valet key from the fob and behind it is a small Phillips screw. After that the fob will split and the battery is visible.
Open the key fob up and look see what battery it contains. Buy that exact battery.
Open the key fob and remove the battery which has a # on it, and then buy a duplicate.
what is the replacement battery for a 2003 Honda accord key fob