How to use anti-dazzle rear view mirror in UK cars

To activate anti-dazzle on your rear view mirror, either manually adjust the lever at the bottom of the mirror or let automatic systems (like those in BMW 5 Series or Mercedes E-Class) adjust the tint automatically.

For manual anti-dazzle mirrors common in many UK cars (including popular models like Vauxhall Corsa and Ford Focus):

1. Locate the small lever at the bottom of your interior mirror
2. Flip the lever either forward or backward to change the mirror's angle by approximately 10 degrees
3. This adjusted position will reflect headlights from following vehicles as dimmer points of light

For automatic anti-dazzle mirrors (standard on premium models like Range Rover and optional on others):

• The mirror uses light sensors to detect bright lights

• It automatically darkens the glass to reduce glare

• No manual adjustment is needed

Note: While effective, anti-dazzle mirrors aren't a complete solution against high beam headlights. The Highway Code (Rule 114) specifically advises drivers to dip headlights when following other vehicles.

The anti-dazzle rear view mirror, commonly found in modern cars, reduces glare from headlights behind you at night. Most UK cars have this feature, often activated manually or automatically. Here’s how to use it:

1. Manual anti-dazzle mirrors: Flip the small lever at the bottom of the mirror. This tilts the glass slightly, reflecting light away from your eyes while maintaining visibility.
2. Automatic dimming mirrors: These use sensors to detect bright lights and darken the mirror surface. No manual adjustment is needed—just ensure the feature is enabled in your car’s settings (common in models like the BMW iX or Tesla Model 3).

For manual mirrors, practice flipping the lever during the day to familiarise yourself. Automatic versions may require battery checks if they stop working. If glare persists, ensure the mirror is clean and correctly aligned.

Some older cars lack this feature, but aftermarket solutions like anti-glare films are available. Always test the mirror’s effectiveness at night in a safe location before relying on it during motorway driving.