Emergency Situations

While driving, sudden onset of headache, dizziness, and nausea may indicate:

Show Answer & Explanation
Correct Answer: B. Possible carbon monoxide leak — exit the vehicle in fresh air immediately

Carbon monoxide is colourless and odourless and can leak from an exhaust crack into the cabin. Headache, dizziness, and nausea are early warning signs; continued exposure causes loss of consciousness. Pull over, exit the car, breathe fresh air, and have the exhaust inspected before driving again.