dick w
Senior Member
- Joined
- Oct 25, 2015
- Threads
- 11
- Messages
- 1,985
- Reaction score
- 877
- Location
- Kapaʻa, HI
- Vehicle(s)
- '16 Civic Sedan Touring, '18 CR-V Touring AWD
One faces the back through the mirror for sensing headlights coming from behind. One faces forward to sense ambient light so a bright light behind you in daytime doesn't result in a dimmed mirror. When rear facing sensor sees more light than front facing sensor, it dims.
Sponsored