Rebuilt brake calipers and headlights go out / high beams

The sticking could be the caliper slide area needs high heat lub.
It's very easy to rebuild calipers.
Basically disassemble, clean w/brake clean, sand bore smooth, check piston condition (make sure it fits smoothly in bore, no cracks/chips).
Lub with brake fluid and assemble with new seal.
To get piston out use VERY low air pressure, they come out fast!