Driving test vehicle inspection — Oklahoma Permit Test

Driving test vehicle inspection on the Oklahoma permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.

The rules

If your vehicle is required by federal law to have a third brake light, it must be working at the time of the driving test.

The high center brake light warns drivers several cars back that you are stopping, which helps prevent rear-end crashes.

If your vehicle is required by federal law to have the third brake light, it must be in working order at the time of testing.

Oklahoma Driver Manual, p.12

For the driving test, the windshield and glass must be free of major cracks, chips or obstructions in the driver's line of sight, especially within the wiper blade area.

A crack in your line of sight can hide a person or car, and it scatters light from headlights at night.

Windshield and glass: Must be free of major cracks, chips, or obstructions in the driver’s line of sight, especially within the wiper blade area.

Oklahoma Driver Manual, p.12

Windshield damage such as star breaks or impact points that can be felt by touch will not pass the driving-test inspection.

Damage you can feel goes into the glass and can spread into a crack that blocks your view.

Damage such as star breaks or impact points that can be felt by touch will not pass.

Oklahoma Driver Manual, p.12

Seat belts are inspected for the driving test on vehicles after 1965.

A seat belt that does not latch gives you no protection in a crash, so it must work before you drive with the examiner.

The following items will be inspected and must be in good working order:

Oklahoma Driver Manual, p.12

On the test

If your vehicle is required by federal law to have a third brake light, when must it be working?

At the time of testing. The high center brake light warns drivers several cars back that you are stopping, which helps prevent rear-end crashes. Oklahoma Driver Manual, p.12: “If your vehicle is required by federal law to have the third brake light, it must be in working order at the time of testing.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

What it costs

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All Oklahoma permit topics

Where these come from

Every rule here is checked against Oklahoma Driver Manual, published by the Oklahoma Office of Management and Enterprise Services, and against the state code itself. Last checked 2026-10-04.