How to replace the battery in a 2016 Chevy Mailbu key fob
The replacement battery is a Panasonic CR-2032

This smart key style is used on:
2016 Chevrolet Camaro
2016 Chevrolet Malibu
2016 Chevrolet Cruze
2016 Chevrolet Spark
2016 Chevrolet Volt
2017 Chevrolet Cruze
2017 Chevrolet Camaro
2017 Chevrolet Spark
2017 Chevrolet Volt