Do the power and heating functions work immediately after install, or do I need to reprogram anything?

Both functions work straight away — they tie into your factory electrical system and switch. No coding or module swaps required.

Will this mirror bolt straight onto my car, or do I need to drill new holes?

This mirror mounts at factory rocker points, so no drilling. Installation is bolt-and-go if you're comfortable removing the old mirror and wiring the connector.

What condition is this mirror in — is it scratched, cracked, or guaranteed to be clean?

These are OEM take-off or equivalent stock. Minor wear from previous use is possible; inspect photos and contact support if you have concerns about cosmetic condition before purchase.