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How to Replace the Key Battery on a Toyota Corolla

Model: Toyota Corolla MK 5, E210 - Years 2019-2026
Part: Key

Replacing the battery in your Toyota Corolla key takes just a few seconds and can be done independently. Follow the instructions provided here. First, completely remove the physical emergency key from the fob and then use the same key to open the fob and gain access to the dead battery. Once done, remove the old battery and replace it with a new model. Finally, correctly reassemble the fob and insert the emergency key back inside.

Updated on 10 July 2026 by ScegliAuto

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