Both headlights fail while you are driving on an unlit rural road at night. What should you do?

Why A is correct

Total headlight loss at night is a visibility emergency in both directions: you cannot see the road, and nobody can see you. Hazard or parking lights restore the second half — being seen — while you slow and bring the car off the roadway to a safe stop. Continuing on parking lights alone trades a legal journey against a genuinely unsafe one, because they are not designed to light the road ahead. The one thing worse than losing your lights is adding a stationary, unlit car in a travel lane to the same dark road.

Why the other options are wrong

B. Stop immediately where you are, in the lane, and wait for assistance

Stopping in the lane converts a lighting failure into a collision hazard for the next vehicle, which is traveling at speed with its own assumptions about an empty road. Off the roadway, with hazards on, is the only defensible place to be stationary.

C. Continue slowly using the parking lights until you reach your destination

Parking lights illuminate your outline to others, not the tarmac for you. Driving any distance on them means driving effectively blind at a speed your vision cannot justify, on a road where the pothole you cannot see is the least of it.

D. Flash the high beams repeatedly, which use a separate circuit, and continue if they work

Headlight and high-beam circuits often do share switches, relays and wiring, so trying the flasher is worth two seconds — but continuing on a high-beam flash as your main illumination blinds everyone you meet and lights nothing steadily. Diagnosis does not equal a solution.

On the road

A wiring fault takes out both headlights on a black stretch of state highway. The driver gets the hazards on within a heartbeat, eases to 20, and rolls onto a gravel turnout she had passed a hundred times. Four minutes later a tow truck arrives that a following motorist called. The sequence — be seen, slow down, get off the road — is the entire difference between that story and a worse one.

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