Does this mirror use the factory wiring, or do I need new connectors?

It connects to the existing mirror wiring harness at the door panel. No new wiring required if your vehicle came with heated mirrors from the factory.

Will the heated element work right away, or does it need to warm up?

The heating coil activates immediately when you turn on the heat or rear defrost. You'll feel warmth building within seconds once current flows through.

What if the heating element stops working after install?

Check that the mirror connector is fully seated in the door harness and the circuit isn't blown. If power reaches the mirror but heat doesn't activate, the element itself may be faulty—contact support with photos of your connection.