caps lock light will not turn on after logging in account MacBook air

Hello broken-69,

Welcome to Apple Support Communities. We understand how important CAPS LOCK can be, and want to help.

The following thread has a solution that worked for another user, and seems to be helpful in this issue. Please have a look:

My caps lock key isn't working on my MacB… - Apple Community

Cheers!

broken-69 Said:

"caps lock light will not turn on after logging in account MacBook air: Macbook air intel has two accounts, when logging in on one of the accounts, caps lock light will not turn on!! How messed is this,"

-------

Troubleshooting Keyboard Lights:

Reset the SMC and your NVRAM

(Applies to Intel-Based Macs Only): Sometimes when changes(i.e. updates) are made to the system, system configurations (i.e. for then keyboard) become manipulated, technically. So, reset the SMC and NVRAM. You may need to use this adapter, if no USB-A port exists: USB-C to USB Adapter - Apple

Hello broken-69,

That’s great news! We’re so happy to hear it is working again. If you have any other questions feel free to reach out to us. 

Thank you for using Apple Support Communities.

Take care!