whoa, where did that come from. mine don't have that
Auto Dimming Rearview Mirror
This is one smart mirror. It automatically detects glare and dims, making afterdark road runs easier on your eyes. The brighter the lights behind you, the darker the mirror becomes. That preserves your vision, and lets you keep your hands on the wheel instead of fiddling with the mirror. Plus, along with a digital compass, it features a HomeLinkÂ® Universal Transceiver* that can control garage door openers and more.
Nothing about a compass.</span>- HomeLinkÂ® Universal Transceiver
- Auto-dimming rearview mirror