How can I fix keys that are not working properly on my MacBook Pro?

Gary Beberman wrote:

i pulled my M1 MBP out of its backpack and started using it. My caps lock randomly turned on in the middle of typing. I restarted the computer and now, at login, hitting the left shift key cause something to type in the password field (I can’t see what). Hitting DEL or an arrow key does nothing. Eventually the caps lock lights up. Hitting it causes the password field to go away, the alternative user ids to appear, and an incessant clicking noise indicating something is being typed but has nowhere to go.

how can I tell what key is the problem so I can fix it?

thanks!!

[Re-Titled by Moderator]

Original Title: Some key is stuck. Which one?

for hardware issues take it in—

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"

Genius Bar Reservation and Apple Support Options - Apple

Outside the USA

Contact Apple Support - Apple Support

Check Device Coverage

View Coverage - AppleCare & Warranty

Try an external keyboard.

John Galt is probably correct.

But if you want, you can use this:

Use the Keyboard Viewer on Mac - Apple Support

Whatever is causing that to occur may not be limited to a specific key. In fact it probably is not, meaning the anomaly is likely to be deeper than that. If restarting the Mac in the usual manner does not fix it contact Apple for a hands-on evaluation. Start here: Support