Amazon.com: (2 Pack) of CR1632 1632 Remote Key Fob Battery Replacement for Lexus Accessories Original OEM (Bundle with Remote Opening Tool) case fits FCC ID HYQ14AAB HYQ14ACX HYQ14AEM ES is LS LX
Energizer Lithium Cr1632 Coin Batteries in the Coin & Button Batteries department at Lowes.com