How To Change Toyota Avalon Key Battery. How to replace size cost and more. Although some batteries last much longer most batteries begin breaking down chemically after four years so you could experience dimmer headlights and other negative effects before you have a dead battery in your Avalon that you need to replace.
Joe RaedleGetty Images NewsGetty Images. Although some batteries last much longer most batteries begin breaking down chemically after four years so you could experience dimmer headlights and other negative effects before you have a dead battery in your Avalon that you need to replace. Something in the car is causing a drain a light is staying on possibly.
Once you have your new battery follow these steps.
2016 2018 Toyota Avalon 4 On Smart Key Fob Hyq14fba 89904 06140 Board 281451 0020. Pry off the rear cover with a flathead screwdriver or another and remove the remote control. Toyotas Smart Key gives you three different ways to lock and unlock the vehicle. My 3 Smart Fob keys only open drivers door.
