Do I need to splice wires or run new harnesses?

This mirror plugs into the factory electrical connector — no cutting or splicing required. Make sure the existing harness is intact before installation.

Will the heater function work right away after install?

Once wired in, the heating element responds to your climate control settings. If the defroster doesn't activate, verify power is reaching the connector and check your vehicle's fuse panel for any blown circuits.

What if the power adjustment or heater stops working after a few months?

Return process depends on the issue — electrical failure, connector corrosion, or installation error all have different solutions. Contact support with photos of your setup and a description of what stopped working so we can troubleshoot or process a replacement.