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Wyoming driving lesson · Crashes & Emergencies

Breakdowns and carbon monoxide

A 3-minute lesson from the Wyoming course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
3 minutes
Course unit
Crashes & Emergencies
Checkpoint questions
4
Source pages
84

A breakdown turns your car into a roadside hazard. Get fully off the road, make yourself visible and stay safe. Watch for carbon monoxide, an invisible gas that can poison you inside your own vehicle.

Know the rule

If your vehicle isn't working properly and you must stop, stop with all four wheels on the shoulder.

Handbook p. 84 ↗

After a breakdown:

  • Turn on your four-way emergency flashers
  • Get out on the side of the vehicle away from traffic
  • Tie a white cloth to the antenna or door handle and raise the hood or trunk lid
  • DO NOT walk for help if you're on the Interstate
Handbook p. 84 ↗

Know the rule

If you see a disabled vehicle on the shoulder, move to the left lane if possible. The driver may not see you and may open a door or pull onto the road.

Handbook p. 84 ↗

Carbon monoxide

A colorless, odorless and poisonous gas.

Handbook p. 84 ↗

Signs of carbon monoxide poisoning:

  • Weariness and yawning
  • Dizziness
  • Nausea
  • Headache
  • Ringing in the ears
Handbook p. 84 ↗

Know the rule

If you feel any of these symptoms, stop your engine and open the windows for fresh air.

Handbook p. 84 ↗

To avoid carbon monoxide poisoning:

  • Have your exhaust system checked regularly for leaks
  • Avoid parking for long periods with the engine running
  • Never start your vehicle or warm up the engine in a closed garage
Handbook p. 84 ↗

Put it into practice

Your car dies on I-25. Get all four wheels onto the shoulder, turn on your flashers, climb out on the side away from traffic, and raise the hood. Don't set off walking for help along the Interstate.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

You should never start your vehicle or warm up the engine inside a closed garage.
  1. True
  2. False

Answer: True

To avoid carbon monoxide poisoning, never start your vehicle or warm up the engine in a closed garage.

Handbook p. 84 ↗
If your vehicle breaks down on the Interstate, you should walk to the nearest exit for help.
  1. True
  2. False

Answer: False

The handbook says DO NOT walk for help if you are on the Interstate.

Handbook p. 84 ↗
What are signs of possible carbon monoxide poisoning while driving?
  1. Sudden hunger, thirst and sneezing
  2. Sneezing, watery eyes and itching
  3. Yawning, dizziness, nausea, headache
  4. Blurred color vision and chills

Answer: Yawning, dizziness, nausea, headache

Signs of carbon monoxide poisoning are weariness, yawning, dizziness, nausea, headache, and ringing in the ears.

Handbook p. 84 ↗
You see a disabled vehicle parked on the right shoulder of a multilane highway. What should you do if possible?
  1. Move to the left lane
  2. Stop behind it to help
  3. Stay in the right lane and pass
  4. Speed up to pass it quickly

Answer: Move to the left lane

If you see a disabled vehicle on the shoulder, move to the left lane if possible; the driver may open a door or pull onto the road.

Handbook p. 84 ↗
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