When the foot brake is pressed, which light must come on?
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Two high-beam headlights, visible from 1,000 feet.
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One red brakelight.
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Two red stoplights.
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Two emergency flashers.
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Explanation
When a vehicle is braking, two red stoplights should illuminate on its rear. These lights must be visible from at least 300 feet during the daytime to help avoid rear-end collisions. Their function is to warn drivers behind the stopping vehicle and give them time to slow down, maintaining a safe following distance.
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