Does the ABS light do the self check with ignition on? light should come on then go off,handbrake light is linked to abs system ,you could have a faulty brake fluid cap if your lucky,ive had the same problem and have narrowed it down to the abs ecu being at fault,its been off for repair ,just waiting for it to come back now,will let you know what happens.
Use Vagcom or similar to turn off airbag light
I swapped mine to a Polo / Lupo type wheel last week and I had no issues with needing to reset the airbag ecu. That's not to say you wont though if fault codes have been raised for some reason.