Will this work with my truck's existing mirror assembly?

Yes. This lens is designed to swap into your OEM mirror housing — no modifications needed. Your factory heating element and wiring remain in place.

Does the heater function come pre-wired?

The heating element is built into the glass. Your truck's existing mirror heater circuit powers it directly — no additional wiring or relay installation required.

What happens if the glass cracks during removal?

Mirror glass is fragile during removal and installation. Take your time prying the lens from the housing — heat or a flat pry tool helps. Once removed, handling damage is on you. Refer to your service manual for the proper disassembly procedure if you're unsure.