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Montana driving lesson · Vehicle Equipment

Clear view: windows, seat and mirrors

A 3-minute lesson from the Montana 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
Vehicle Equipment
Checkpoint questions
3
Source pages
28, 29

You can't avoid what you can't see. Before every trip, clean the glass and lights, then set the seat, mirrors and head restraint for whoever is driving — many vehicles are shared by drivers of different sizes.

Keep your glass clear

  • Keep the windshield clean — bright sun or headlights on a dirty windshield make it hard to see
  • Carry liquid cleaner and a paper or cloth towel
  • Keep the washer bottle full; use antifreeze wash where it can freeze
  • Clean the inside of the windows — smoking builds up a film
  • Clear snow, ice and frost from the front, sides and back before you drive
Handbook p. 28 ↗

Know the rule

Don't hang things from your mirror or clutter the windshield with decals; they can block your view.

Handbook p. 29 ↗
50%

How much dirt on the lenses can cut your lights' effectiveness

Handbook p. 29 ↗

Know the rule

Keep the headlights, backup lights, brake lights and taillights clean.

Handbook p. 29 ↗

Know the rule

Adjust your seat so you're high enough to clearly see the road (use a cushion if needed), but not so far forward that you can't steer easily.

Handbook p. 29 ↗

Know the rule

Set the rearview mirror to see out the back window and the side mirrors to see the sides. A good side-mirror setting: lean forward slightly and you can just see the side of your vehicle.

Handbook p. 29 ↗

Know the rule

If you have a day/night mirror, make sure it's set correctly for when you are driving.

Handbook p. 29 ↗

Head restraint

Designed to prevent whiplash if you're hit from behind. Adjust it so it contacts the back of your head.

Handbook p. 29 ↗

Put it into practice

You borrow a taller friend's car. Before pulling out, raise the seat until you see the road clearly, aim the rearview mirror at the back window, set each side mirror so leaning slightly shows the car's side, and lower the head restraint to the back of your head.

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.

Dirt on your headlight and taillight lenses can cut the lights' effectiveness by how much?
  1. 30%
  2. 50%
  3. 25%
  4. 75%

Answer: 50%

The manual says dirt on the lenses can cut the lights' effectiveness by 50%, so keep them clean.

Handbook p. 29 ↗
How should you adjust your head restraint?
  1. As low as it will go
  2. So it rests at the base of your neck
  3. So it contacts the back of your head
  4. So it sits above the top of your head

Answer: So it contacts the back of your head

Head restraints prevent whiplash when you're hit from behind, and should contact the back of your head.

Handbook p. 29 ↗
A good side-mirror setting shows none of your own vehicle, even when you lean forward slightly.
  1. True
  2. False

Answer: False

Set the side mirrors so that when you lean forward slightly, you can see the side of your vehicle.

Handbook p. 29 ↗
Take the lesson checkpoint in the app

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