MirrorWallonia
An introduction to the traffic rules and road signs of Wallonia. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
143. Mirror
A mirror is a device fitted to a vehicle that allows the driver to observe traffic behind and beside the vehicle without turning away from the road ahead for an extended period. Vehicles commonly use an interior rear-view mirror and one or more exterior side mirrors.
Mirrors help drivers monitor surrounding traffic before changing direction, changing lane, overtaking, merging or slowing down. Because mirrors cannot show every area around a vehicle, drivers should also check their blind spots by direct observation where necessary before manoeuvring.
Wikimedia.org • Petar Milošević • CC BY-SA
How must you adjust your mirrors in Belgium?
The driver must adjust the rear-view mirrors so that, from the normal driving position, they can observe traffic behind and to the left and in particular detect a vehicle that has started overtaking on the left.
Should you adjust your mirrors before starting to drive?
Yes. The mirrors should be correctly positioned for the driver's seating position before driving so that the required view of surrounding traffic is available.
Does an ordinary Belgian passenger car have an interior mirror?
Passenger vehicles are normally equipped with an interior rear-view mirror together with exterior rear-view mirrors according to their applicable technical approval requirements. Where rearward vision through the vehicle is impossible, approved exterior or indirect-vision arrangements provide the necessary view.

Traffic rules
Wallonia