Does this mirror come with the wiring harness?

The mirror assembly is included; your factory harness connects directly at the door jamb. If your connector is damaged or missing, you'll need to source or repair that separately.

Will the heater work right away after installation?

Yes—once mounted and connected to your vehicle's electrical system, the heater activates through your existing climate control. No separate switches or relays to wire.

What if the motor or heater stops working?

Test the power supply at the connector first. If voltage is present but the mirror doesn't respond, the internal motor or heater element may need replacement—contact us with purchase date and details.