Will the heater element work with my stock wiring harness?

This mirror uses OEM connector pinout—it plugs straight into your factory harness. Your vehicle's heating circuit will control it the same way the original mirror did.

Do I need to reprogram anything or take this to a dealer?

No reprogramming needed. This is a straight swap—disconnect the old mirror, connect the new one, secure it to the factory mounts, and you're done.

What condition is the mirror glass in, and can I replace it separately?

Assembly ships new with intact mirror glass. If glass becomes damaged later, replacement glass panes are typically available as separate service parts through parts suppliers.