The key fob battery for a Honda vehicle is changed by removing the retaining screws and gently popping the rear cover off. The battery can then be pushed out of its holder and a new one installed.
what is the replacement battery for a 2003 Honda accord key fob
You do not have to reset the key fob when changing the battery.
Open the key fob and remove the battery which has a # on it, and then buy a duplicate.
CR1616 - 3v battery
How do you change the battery in mazda 5 key?
cr1616
Panasonic CR1618
open the lid and change it.
The fob has a pry slot and prys apart.
you get 3 mins to change the battery.
This new car came with an owners manual. Open the manual and read. There you will find instructions on how to change the battery. Or you can ask the selling dealer as the battery should not be dead in this short period of time.