Michigan Secretary of State
Mechanic certification practice tests
Michigan requires mechanics to pass a Secretary of State test for each category of repair they perform. We cover all 20 categories with official topic weights, and full practice banks are live for Engine Repair, Front End, Suspension & Steering, Brakes & Braking Systems, Electrical Systems, Engine Tune-Up & Performance.
Sources: SOS mechanic testing · SOS mechanic FAQ · Mechanic Testing Categories Overview (PDF)
Automobile & light truck Vehicles under 14,000 lb GVW
Heavy-duty truck Vehicles 14,000 lb GVW and higher
Motorcycle
Miscellaneous
Mechanic test FAQ
How many questions are on a Michigan mechanic test?
The Secretary of State says most mechanic tests have 55 questions, and a few range between 65 and 100 questions.
How much does each mechanic test cost?
Each test costs $18, effective July 1, 2026 (Public Act 59 of 2025), according to the SOS mechanic testing page.
Where do I take the test?
At any Secretary of State office on a touch-screen kiosk, by appointment. Approved automotive schools can also test their students.
What is “quick pass”?
The SOS says tests are “quick pass”: once you reach the minimum passing score, the test ends without requiring you to finish all the questions. The screen shows how many questions you have answered correctly as you go.
Can I use reference materials?
No. The SOS FAQ says no reference materials or electronic devices may be used during testing.