How can I start using a RADAR Key for accessible facilities?

Been trying to sort out this RADAR Key thing so I can actually use accessible loos without hunting down staff every single time, but I’m confused about how you’re supposed to get started. I finally bought a key, but I’ve never used one before and I keep second guessing myself. Do you just walk up and use it? Are there unspoken rules I should know? I’ve had a few awkward moments already and would love some tips from people who’ve been using one for a while. Just trying to make getting around a bit smoother in 2026.

I just pop the key in, turn it, and go right in. If someone’s waiting, I say I have the key and head through. Staff usually don’t need to be involved.

I got my card sorted pretty quickly after checking I was eligible on https://www.disabilityid.co.uk/eligibility/, and it made things like getting a RADAR key and using my lanyard way easier. If you’re hoping for smoother access or discounts at places like theme parks, having the card on hand really helps, and logging in for member perks has been straightforward once the account is set up.