how do i change battery keys?

take to dealer to change battery-or a good raido shop.

You can change the battery yourself by using a quarter, flip the key out and pop the key console open, you should see the two batteries laying. However, after you change the batteries, you have to take it back to the dealership to reprogram the key and pair back up with your car. Therefore, you might as well just let the dealership do the whole thing...

tou can watch this vedio. http://www.youtube.com/watch?v=-STyvLrc0pE

I replaced the 2 2025 lithium batteries and it worked. No programming necessary.