2009 Toyota Corolla Owners Manual - Page 308

4 -3 . Do-it -yourse lf m a int e na nc e Ke y bat t e r y Replace the battery with a new one if it is discharged. n You will need the following items: l Flathead screwdriver (To prevent damage to the key, cover the tip of the screwdriver with a rag.) l Small Phillips-head screwdriver l Lithium battery Vehicles with smart key system: CR1632 Vehicles without smart key system: CR2025 (Type A) CR2016 (Type B) n Replacing the battery (vehicles with smart key system) STEP 1 Take out the mechanical key. 4 Maintenance and care STEP 2 Remove the cover. 343