Did a lot of reading on this topic and learned a lot on this light. The steering wheel reset didn't last on my 04 coupe. Brakes worked fine, cruise not affected, brake lights ok, wing not affected.

I ran a scan using my recently acquired icarsoft i980 tool and got codes on the two pressure sensors on the master cylinder. I disconnected both, cleaned the contacts and used a little dielectric grease and reconnected. Reset the code - no problems for several days. Hope it is fixed. I'm replacing the brake light switch for good measure.

I am finding this little scanner to be very useful. Got it for a hundred on Amazon.