If it is necessary to make an emergency stop while driving on an interstate, you should:

  1. Sound your horn at passing cars to get their attention.
  2. Get out of your vehicle and flag down the first vehicle that passes.
  3. Pull off the road, turn on your emergency flashers, and stay in your vehicle, if you can. ✓

Answer: C. Pull off the road, turn on your emergency flashers, and stay in your vehicle, if you can.

Pull off the road, turn on your emergency flashers, and stay in your vehicle, if you can.

Why this is the answer

The handbook's vehicle-trouble procedure says to turn on your emergency flashers, pull off the road away from traffic when possible, and then call for roadside help and remain in your vehicle until help arrives. Staying inside keeps you out of the traffic lanes where passing cars could hit you, and the flashers make your stopped car easier for drivers behind to spot in time. If you cannot get fully off the road, stop where people can see you and your vehicle from behind.

Why the other answers are wrong

Remember it

Trouble on the interstate? Flashers on, get as far off the road as you can, and wait inside the car.

Official handbook: California Driver Handbook (DL 600), Section 5: An Introduction to Driving, p. 12

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.