Carautonomy — car parts and warning lights explained
← All features

Feature · 2 min read

Auto-Dimming Rear View Mirror Explained

Reduces glare from headlights behind you at night.

Forward sensorRearward sensor (sees glare)Electrochromic gel darkens when sensors detect glare from behind

What is an Auto-Dimming Mirror?

An auto-dimming rear-view mirror darkens itself when bright headlights are detected behind you, then clears again once they're gone.

How does it work?

The mirror contains an electrochromic gel between two thin layers of glass. A forward-facing sensor measures cabin light; a rear-facing sensor measures the glare hitting the mirror. When the rear is much brighter, the gel darkens.

What does it feel like?

A car with bright LED headlights pulls up behind you at night. Where you'd normally squint, the mirror just quietly tones the reflection down.

Benefits

  • Less eye strain at night
  • No manual day/night tab to flip
  • Often integrates a compass, garage opener or camera display

Limitations

The gel can develop dark patches with age. Repairs usually mean replacing the whole mirror.

Heads up: Carautonomy is for general guidance only. Always check your vehicle handbook for model-specific details and limitations.

Keep exploring