What effect do the hazard warning lights have on the brake lights?

  1. They cause the brake lights to switch off completely.
  2. They cause the brake lights to flash repeatedly.
  3. They cause the left and right brake lights to flash alternately.
  4. They have no effect.

Correct Answer

They have no effect.

Explanation: The hazard lights work independently of the other lights on the vehicle (except the direction indicators); and have no effect on the brake lights. Use the hazard warning lights to warn other road users of a danger ahead; when your vehicle is broken down and causing an obstruction; or when you needs to slow down sharply on a motorway.

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