When should a driver use their vehicle's hazard warning lights?

  1. When double parking.
  2. When causing an unavoidable obstruction.
  3. When the brake lights are not working.
  4. When a following vehicle is too close.

Correct Answer

When causing an unavoidable obstruction.

Explanation: Use the hazard warning lights to warn other road users of a danger ahead. For example; if a drivers vehicle is causing an unavoidable obstruction such as being broken down; they should use the vehicles hazard warning lights to warn other road users of their presence.

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