Will this work with my existing mirror housing?

Yes. This lens is designed to integrate directly into the factory mirror assembly without modification. The heating element connector matches your existing wiring — no electrical work needed.

Do I need any adhesive or fasteners to install this?

Installation method depends on your mirror housing design. Test-fit the lens first to confirm how it seats, then decide between adhesive or mechanical fasteners. Bring it home, check the fit, then commit to your mounting approach.

What if the lens doesn't heat after installation?

Double-check the heating element connector is fully seated and the circuit is live when you turn on the defrost function. If heat still doesn't work, the issue is upstream in your vehicle's electrical system — have a tech inspect the mirror control module or relay.