The CDL Backing Test, Explained (Free Practice Game)

Backing a tractor-trailer is the part of the CDL skills test most new drivers worry about. This page walks through every backing exercise on the traditional and modernized tests, how each one is scored, and what examiners look for. Then try it yourself. The free practice game below has five real test exercises. It’s the fastest way to feel how a trailer swings the opposite way from your wheel.

Practice game, not the official CDL skills test. Course sizes and rules vary by state. Jump to an exercise: Straight line backing · Offset back · 90 degree alley dock · Reverse offset backing · Parallel parking

How to Use the CDL Backing Practice Game

The game puts you in the driver’s seat of a tractor-trailer on a top-down test course. It’s built from the same exercises in the North Carolina, South Carolina and Virginia CDL manuals, so what you practice here is what you’ll see on test day.

Pick your test

Choose the version your state uses. The traditional test has three exercises: straight line backing, offset back and the 90 degree alley dock. The modernized test has two backing exercises: straight line backing and reverse offset backing. Not sure which one you’ll take? See which test your state uses.

Instructions

On desktop:

• Up arrow drives forward. Down arrow backs up.
• Left and right arrows turn the steering wheel.
• Stop and sound the horn when you think you’ve finished.

On mobile:

• The joystick (bottom left) drives and steers. Push up to drive forward, down to back up, and left or right to steer.
• The wheel (bottom right) shows how the wheel is turning and what geer you are in.
• Get out and look lets you check your position. Each look counts against the looks you’re allowed.
• Tap Horn when you think you’ve finished.

How the game scores you

Each exercise uses the same rules a real examiner uses, simplified so you can practice fast:

• Touching a line or cone is 1 point. More than 3 points ends the try.
• You get free pull-ups and looks, just like the real test: 1 each on straight line backing, 2 each on the other exercises.
• You pass when you finish in the right spot without going over.

What the game teaches (and what it can’t)

The game is good at the part that confuses most new drivers: the trailer goes the opposite way from where you turn the wheel, and it keeps swinging after you stop turning. You’ll learn to make small corrections early, before the trailer drifts too far.

It can’t teach mirrors, depth perception, a real clutch, or test-day nerves. Those take hours in a real truck with a trainer next to you. That’s what TransTech’s CDL training is for.

What is the CDL backing test?

The CDL skills test has three parts: the vehicle inspection, the basic control test and the road test. The backing test is the basic control part, sometimes called the range or yard test. An examiner sets up exercises with cones and boundary lines and scores how well you control the vehicle and judge where it is. You have to pass it before you can go on to the road test.

Traditional or modernized: which test will you take?

Two versions of this test are in use. FMCSA approved the modernized test in 2022, and each state decides whether to use it. The modernized test runs on a smaller course and uses the same four exercises every time. The traditional test draws from a longer list.

Which test does your state use? Last checked November 2026. This changes, so confirm with your state’s CDL manual.

• North Carolina: traditional
• South Carolina: modernized
• Virginia: modernized
• Georgia: the state publishes both versions, so ask your test site which one you’ll take

The CDL Backing Exercises

Straight line backing

Back in a straight line between two rows of cones without touching or crossing the boundaries. Keep going until the front of your vehicle clears the last cones, then stop. On the modernized test, you first pull forward through the alley, then back straight through it.

It sounds like the easiest exercise, but the trailer starts to drift almost as soon as you move. The trick is catching that drift while it’s still tiny.

Game tip: Small moves. Fix it early, before you can see it.

Offset back

Back out of your lane and into the lane beside it, at your right rear or left rear. Keep backing until the front of your vehicle has passed the first set of cones, then stop. In the game, you back into the lane at your right rear, which is your blind side.

The offset back is also called offset backing. You’ll have to swing the trailer over, then straighten it out before you run out of room.

Game tip: This is your blind side. Start the swing before you think you need to.

90 degree alley dock

Drive past the alley and line up parallel to the outer boundary. Then back into the alley on your driver’s side and stop with the rear of your vehicle within 3 feet of the end. You have to finish straight in the alley.

Reverse offset backing

Reverse offset backing is the harder of the two backing exercises on the modernized test. Back from one lane into an alley at your right rear. Finish with the rear of the trailer inside the 3-foot box at the end and your rig straight, without crossing the boundaries.

It combines the hard parts of both older exercises: a blind side swing, then a tight finish. You get 2 free pull-ups and 2 looks.

Game tip: Be straight before the solid line starts. It only gets tighter from there.

Parallel parking

Pull past the space, then back in without crossing the front, side or rear boundaries, with the whole vehicle inside. The driver side version is on your left. The conventional version is on your right.

Forward stop and Offset Tracking

These two modernized exercises aren’t backing, but you’ll take them on the same course.

• Forward stop: Drive forward through the alley and stop with the front of your vehicle inside the box at the end. You get one stop.
• Forward offset tracking: Drive forward and steer left through the opening into the opposite lane. Keep your rightmost rear tire between the cone and the line. You can’t stop, back up, or get out during this one.

Blind Side vs. Sight Side Backing

Sight side backing means backing toward your driver’s side, the left. You can look out your window and see the trailer and the space you’re aiming for. It’s the easier direction, and the CDL manual tells you to back toward the driver’s side when you can.

Blind-side backing means backing toward the passenger side, to the right. You can’t see that side of the trailer from your seat, so you’re working only from your right mirrors. Offset backing to the right and reverse offset backing are both blind side moves.

Three habits make the blind side easier:

• Start the turn early. The trailer is slow to respond. Waiting until you can see the problem is too late.
• Use your looks. Getting out to check your position is allowed on the test, within limits. Use them before you’re in trouble, not after.
• Go slow. Use your lowest reverse gear. It gives you time to correct.

The offset back and reverse offset backing in the game both put the target lane at your right rear. They’re good blind side practice.

How the CDL Backing Test Is Scored

Examiners count errors as you go. Each error adds points, and too many points means you fail that part of the test. Here’s what counts:

• Encroachments. Touching or crossing a boundary line or cone with any part of your vehicle.
• Pull-ups. Stopping and pulling forward to get a better position. You get a set number free; each one after that counts. Stopping without changing direction doesn’t count.
• Looks. Stopping and getting out to check your position. Set the parking brake, shift to neutral, and keep three points of contact on the way down. Looks over the limit count.
• Final position. Finishing outside the spot the examiner told you to stop in.
• Unsafe acts. Forgetting the parking brake, opening the door while moving, or hitting something can be an automatic failure.

Backing tips from the CDL manual

• When you back a trailer, you turn the steering wheel the opposite way from where you want the trailer to go. Once the trailer starts to turn, turn the wheel the other way to follow it.
• Back as slowly as you can, in your lowest reverse gear. It’s easier to correct a steering mistake that way.
• Check the mirrors on both sides often.
• If you’re not sure, get out and check your path.
• When you can, back toward the driver’s side so you can see.

Common questions

How many maneuvers are on the CDL backing test?

It depends on your state. The modernized test has four exercises, and two of them are backing. On the traditional test you could be tested on one or more from a list of six. In North Carolina that means straight line backing, offset backing and a 90 degree alley dock.

Is there a free CDL backing simulator?

Yes. The game at the top of this page is a free, in-browser CDL backing simulator with five test exercises: straight line backing, offset back and 90 degree alley dock for the traditional test, plus straight line backing and reverse offset backing for the modernized test. No download needed.

What’s the difference between the traditional and modernized CDL test?

The modernized test runs on a smaller course with four set exercises: forward stop, straight-line backing, forward offset tracking and reverse offset backing. The traditional test draws from exercises like straight line backing, offset back, parallel park and alley dock. The road test is the same on both.

What counts as a pull-up?

Stopping and pulling forward to fix your position. Stopping without changing direction isn’t a pull-up.

Can you get out and look during the backing test?

Usually yes. The manuals allow one look on straight line backing and up to two on the other exercises. Secure the vehicle and get out safely every time.

What happens if you fail the backing test?

You have to pass it before you can go on to the road test. Retest rules vary by state, so check with your state or test site.

Is the game the same as the real test?

No. It’s a practice game based on the public CDL manuals. Real course sizes vary by state and test site, and the game’s pass mark is a game rule, not an official score.

Ready to learn in a real truck?

Talk to TransTech about CDL training near you.

Learn more about Class A CDL training, try the CDL permit practice test, or see CDL skills testing in North Carolina.

Sources

• North Carolina CDL Manual
• South Carolina CDL Manual
• Virginia Commercial Driver’s Manual
• Georgia DDS: CDL skills test modernization