Vehicle check windshield and tires — Montana Permit Test

Damaged windshield glass blocks your view and breaks more easily, so have the windshield replaced.

A cracked windshield can shatter when a stone hits it at highway speed.

Have the windshield replaced if the glass is damaged.

If your windshield wiper blades have not been working well, replace them.

Streaky blades smear rain across the glass right where you need to look.

If the blades have not been working well, replace them.

Check tire air pressure with a gauge when the tires are cold, and use the pressure in the owner's manual.

A tire still warm from the road reads higher than it should, so a low tire looks fine.

Check the tire air pressure with an air pressure gauge when the tires are cold.

Stick a penny into the tread head first; if the tread does not reach at least Abraham Lincoln's head, the tire is unsafe and must be replaced.

Shallow tread cannot push water out from under the tire, so the car slides on a wet road.

If the tread does not come at least to Abraham Lincoln's head, the tire is unsafe, and you need to replace it.

Worn or bald tires can increase your stopping distance and make turning harder when the road is wet.

On a rainy street a car on bald tires keeps sliding toward the crosswalk after the brakes go on.

Worn or bald tires can increase your stopping distance and make turning more difficult when the road is wet.

If the vehicle bounces, the steering wheel shakes, or the vehicle pulls to one side, have a mechanic check it.

A shake or pull can be a tire about to fail, and it gets worse at speed.

If the vehicle bounces, the steering wheel shakes, or the vehicle pulls to one side, have a mechanic check it.

What should you do if your windshield glass is damaged?

Have the windshield replaced. A cracked windshield can shatter when a stone hits it at highway speed. Montana Driver Manual, p.13: “Have the windshield replaced if the glass is damaged.”