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IV. Lights and indicator lights

Chapter 4: Vehicles

The lights of a moving vehicle

Low beam headlights (front)

When to turn them on?

  • Between dusk and dawn
  • In the evening , in a tunnel , under a bridge or when it rains
  • When it is no longer possible to see clearly at a distance of approximately 200 m

High beams (front)

When to turn them on?

When the lighting does not allow you to see clearly at around 100 m

High beam headlights must be turned off and replaced with low beam headlights

  • When approaching a user coming in the opposite direction (pedestrian or driver)
  • When a driver flashes your headlights
  • When following a vehicle at less than 50 m (unless overtaking it)
  • When the lighting allows you to see clearly at around 100 m

Front fog lights

When to turn them on?

The front fog lights can be switched on (so it is not obligatory ) in the event of

  • Fog
  • Snowfall
  • Heavy rain

These lights can replace the low beam or high beam lights or be switched on simultaneously

Daytime running lights (front)

These lights allow you to be better seen  by other road users. Also called ”   daytime running lights  “, they  are positioned at the front of  motor  vehicles , near the headlights.

When you turn on your front lights, the red lights at the rear of your vehicle automatically turn on

Rear fog lights must be used in the event of :

  • Fog (if visibility is reduced to less than 100 m )
  • Snowfall (if visibility is reduced to less than 100 m)
  • Heavy rain

This also concerns trailers .

These lights cannot be used in other circumstances .

The indicators

Any driver who wishes to carry out a maneuver must indicate this by operating their indicators.

2-wheel mopeds and motorcycles traveling on public roads must always use:

  • The low beam and the rear red light
  • The high beam cannot then be used

2-wheel mopeds and motorcycles traveling on public roads must always use:

  • The low beam and the rear red light
  • The high beam cannot then be used

The lights of stopped or parked vehicles

Stationary or parked motor vehicles , with the exception of 2-wheeled mopeds, must be reported     

  • Between dusk and dawn
  • As well as in all circumstances where it  is no longer possible to see clearly up to a distance of approximately 200 m

In the front

  • One or two position lights
  • In case of fog , snowfall or heavy rain , the low beam or front fog lights can be used as well as the rear fog lights

In back

  • One or two rear red lights
  • In case of fog , snowfall or heavy rain , the rear fog lights can be used.

The seat belt is not fastened.

Fasten your seat belt and ask your passengers to do the same.

ABS (Anti-lock Braking System) malfunction.

The ABS no longer works, contact your mechanic as quickly as possible to check your vehicle.

Abnormal engine oil pressure.

You must stop, turn off the engine and check the oil level. If necessary add oil.

If you notice a loss of oil, you must go to the mechanic as quickly as possible

Abnormal tire pressure.

The tire pressure is below the level predicted by the manufacturer.

Avoid sudden changes of direction and braking.

Go inflate your tires or change the tire if it is a flat tire.

Airbag malfunction.

Go to the mechanic to resolve the problem.

Rear window defrosting.

Turn it off as soon as the mist has disappeared.

Hazard lights (all indicators work at the same time).

You will use it in the event of a breakdown, accident, imminent danger (for example sudden slowdown on the motorway) but also a school bus which is loading or unloading children.

Température anormale du liquide de refroidissement.

Arrêtez-vous, coupez le moteur pour le laisser refroidir et vérifier le niveau du liquide.

Si nécessaire rajoutez-en.

Abnormal coolant temperature.

Stop, turn off the engine to let it cool and check the fluid level.

If necessary add more.

Failure of the ESP (anti-skid system).

If the light stays on constantly, ESP is deactivated.

Go to your mechanic.

Diesel engine preheating.

In diesel vehicles, you must turn the ignition to “ON” and wait for the light to go out to start.

If it does not come on when starting or flashes while driving, there is a problem.

Go to your mechanic.

Low battery.

If the vehicle can still be driven, go to your mechanic at low speed or call roadside assistance.

Engine depollution problem.

There is a problem with the exhaust system or engine control.

Go to your mechanic if the light stays on continuously.

Brake failure (brake circuit pressure drop or brake fluid level too low).

Go to your mechanic.

I test my knowledge with questions

Chapitre 1: La réglementation