Siri says “You need to unlock your iPhone first”
There was this same issue With iOS 13.3 reported back in January. Even though the setting is to allow Siri while locked, Siri disregards it. I even went further and allowed USB devices while locked thinking that it may be the problem with the Bluetooth device. So the issue is still there, and that is a MAJOR inconvenience. I discovered this while riding my motorcycle. And for me the only way to communicate if needed is through voice activated commands. And no, the recommendations to reset the phone do not solve it. So it would be nice to know what exactly Apple is planning to do to solve it. I mean apart from ignoring the problem as usual.
iPhone 7 Plus, iOS 13