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  • 0  (6 mistakes allowed to pass)

Free MI CDL Diagnostic Test 2025

Average pass rate for CDL tests in Michigan: 61%.
Average pass rate for this test: 32%.
Hard
5 min
Score distribution:
90-100=>0%
80-89=>0%
70-79=>9%
60-69=>13%
<60%=>79%
Avg. first-try score: 56%

To get a rough idea of how much you know about commercial driving rules in Michigan, try our MI CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!

Free MI CDL Diagnostic Test 2025
MI commercial driver's license
Based on the official MI CDL HandbookHandbook‑based (2025) + exam‑taker feedback
6 MI students practicing now
•45completed today

Accuracy & authorship

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy:

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO at Driving-Tests.org

Test design and learning experience oversight:

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the Michigan SOS changes its handbook or website information.

Official sources we check: Michigan CDL Handbook (2025 edition), Michigan SOS website

How to use this practice test

  1. Start here. One of 4 free Michigan tests. ~5 min. Read explanations as you go.
  2. Cover more ground. All tests have different questions - no repeats.
  3. Finish strong. Try the Exam Simulator for a full-length run.

Why this works

  • Exam-like questions from the current handbook + real test-taker patterns. Explanations cite the manual.
  • AI Assistant explains tricky items in plain language.
  • Performance Insights show your weak topics and what to study next.
  • Challenge Bank™ saves your mistakes for targeted practice.

Actual SOS permit test: What to expect?

The Michigan permit test has 50 questions. You must get 40 correct (80%) to pass.
  • Where: Any Michigan SOS office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake on a different day.
  • Commonly missed: basic vehicle maintenance and pre-drive checks, legal blood alcohol limits and DUI rules.
  • Ready to schedule? Book your MI SOS appointment

Real Michigan drivers who passed first try

Verified student reviews • Shared with permission

One of the best investments I've made by far.
I couldn't believe the accuracy, but between the easy, user-friendly layout and structure, it is a 100% guarantee program
WGS
The layout of the program was amazing.
The little words of encouragement during tests was great. I was able to take the DMV test sooner then expected and only got 1 question wrong which was my fault. I would absolutely recommend this program to anyone.
RH
Very helpful system.
This is the way I study for a test best! Over and over and over again.. As I prepare myself reading the State Commercial Driving Manual, your test questions touch on everything that's in the Manual and then some! I have found myself being much more eager and confident using your methods.
TM
Great!
Used this to help supplement my studies for mi cdl permit test read the manual and do all the test prep on here exactly the way they reccomend it including passing the exam simulators 3 times and you will fly through the state exam it will be like muscle memory
RB
Top notch learning materials.
Initially I thought that reading the 165 page Michigan CDL manual alone would be sufficient. Then I was referred to Driving-Tests. org. After trying a few sample tests I realized I needed much more practice. My first run at the Secretary of State Office allowed me to be successful on everything except the combination test. It was my fault for not preparing enough. Second day I was easily successful and now have my CDL learners permit. I think their testing material is excellent and I think everyone should use it.
SW

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the SOS. That’s why millions of learners trust us for simple, visual, effective prep.

An official & trusted partner in driver education

We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.

A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.