High beams — South Dakota Permit Test

Dim your high beams whenever you come within 500 feet, about one block, of an oncoming vehicle.

High beams in an oncoming driver's eyes can blind them, and they drift across the line into you.

Dim the high beams whenever you come within 500 feet (about a one block distance) of an oncoming vehicle.

Use the low beams when you are closer than 500 feet behind another vehicle or in heavy traffic.

High beams glare off the mirrors of the car ahead and blind its driver from behind.

Use the low beams when you are closer than 500 feet behind another vehicle or when in heavy traffic.

Use high beams whenever there are no oncoming vehicles; they let you see twice as far as low beams.

On a dark country road, low beams show a deer or a stalled car too late to stop.

High beams let you see twice as far as low beams.

It is important to use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road.

In a dark work zone, low beams can miss the worker standing at the edge of the lane.

It is important to use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road.

Use low beams in fog, snow, or hard rain; light from high beams reflects back, causing glare and making it harder to see.

High beams in fog bounce back into your eyes as a white wall, and you lose sight of the road.

Use the low beams in fog, when it is snowing, or when it is raining hard.

If an approaching driver fails to dim their headlights, flash your high beams; if they still do not dim, look toward the right side of the road.

Staring into bright oncoming lights leaves you blind for seconds and drifting off course.

If they still don’t dim the lights, look toward the right side of the road.

Daytime running lights are not meant to replace headlights for night driving or when it is foggy, raining, or snowing.

Running lights alone may leave your taillights dark, so a car behind in fog never sees you.

However, daytime running lights are not meant to replace the use of headlights for night driving or when it is foggy, raining or snowing.

Within what distance of an oncoming vehicle must you dim your high beams?

500 feet. High beams in an oncoming driver's eyes can blind them, and they drift across the line into you. South Dakota Driver License Manual, p.55: “Dim the high beams whenever you come within 500 feet (about a one block distance) of an oncoming vehicle.”