Toyota · Smart / push-button · US manuals

Toyota Corolla smart key (CR2450)

User-replaceable primary coin cell per the OEM key-type section. Contrast fixture: brand≠battery vs Camry smart CR2032

OEM: Lithium battery CR2450 (vehicles with a smart key system)

Buy links go to the battery code page only — not key shells or programming. Key fob battery basics · Smart vs remote · Safe replacement