Printable CDL pre-trip inspection checklist

A walk-around study checklist

Use this with your vehicle’s instructions and your state’s current CDL manual. It is a study aid, not the complete state skills-test script or permission to drive with a defect. Secure the vehicle before inspecting it. Have an instructor demonstrate brake tests and coupling checks.

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1. Engine compartment

• Power steering. Check for damaged or slipping belts, leaks and sufficient reservoir fluid. 49 CFR 393.209
• Exhaust. Look for insecure attachment, leaks near the cab, and temporary wrap or patch repairs. 49 CFR 393.83
• Hood. Check that the hood is securely fastened before travel. 49 CFR 393.203

2. Cab and in-cab checks

• Seat and cab. Check the seat mount, cab doors and cab-to-frame attachments. 49 CFR 393.203
• Equipment. Check that the horn, wipers and mirrors work as needed. 49 CFR 392.7
• Previous report. Review the last driver vehicle inspection report when required. Confirm the repair certification and sign when the rule requires it. 49 CFR 396.13

3. Lights and reflectors

• Required lighting. Check that required lamps operate and that dirt, cargo or equipment does not hide required lamps or reflectors. 49 CFR 393.9

4. Steering

• Steering attachment. Check that the steering column is secure and that the steering gear has no loose or missing mounting bolts. 49 CFR 393.209
• Steering movement. Check steering movement using the method for your vehicle; the wheel must turn freely through its travel. 49 CFR 393.209

5. Suspension

• Springs and axle parts. Look for cracked, broken, loose or missing axle-positioning parts, damaged springs and leaf springs shifted out of position. 49 CFR 393.207
• Adjustable axle. Check that locking pins are present and engaged. 49 CFR 393.207

6. Brakes

• Service and parking brakes. Check that both are in working order, including trailer brake connections. Follow your instructor’s vehicle-specific test procedure. 49 CFR 392.7

7. Tires and wheels

• Tire condition. Look for exposed ply or belt material, separation, cuts exposing cords, flat tires and audible leaks. 49 CFR 393.75
• Tread and pressure. Measure major grooves: at least 4/32 inch on the front wheels of a truck, tractor or bus, and generally 2/32 inch on other tires. Check pressure for the carried load. 49 CFR 393.75
• Wheels and fasteners. Check for cracked or broken rims, elongated bolt holes and loose or missing nuts or bolts. 49 CFR 393.205

8. Coupling (combination vehicles)

• Mounting and lock. Check secure fifth-wheel mounting and the locking mechanism. Confirm coupling with your instructor’s method; never rely on appearance alone. 49 CFR 393.70

9. Trailer

• Trailer equipment. Include the trailer’s tires, wheels, lights, reflectors, brake connections and coupling devices in the check. 49 CFR 392.7

Before driving, you must be satisfied that the vehicle is in safe operating condition. Resolve safety defects before operating it. 49 CFR 396.13