CDL Pre‑Trip Complete Process Checklist

Step 1: Pre-Inspection Preparation

Review previous Driver Vehicle Inspection Report (DVIR)

Ensure all reported defects have been corrected and signed off

Gather necessary inspection tools (tire gauge, gloves, flashlight)

Park vehicle on level ground with parking brake set

Turn off engine and remove keys for safety

Put on appropriate PPE (safety vest, gloves, safety glasses)

Step 2: Documentation Review

Verify current vehicle registration is in the cab

Check insurance documentation is present and valid

Ensure all required permits are current (overweight, oversize, HazMat)

Confirm your CDL license is valid with proper endorsements

Verify medical examiner's certificate is current

Check hours of service records are complete and compliant

Ensure ELD is functioning and logged in properly

Step 3: Engine Compartment Inspection

Check engine oil level between MIN and MAX marks

Inspect coolant level in reservoir (cold engine)

Verify power steering fluid at proper level

Check windshield washer fluid reservoir is full

Inspect all belts for wear, cracks, or fraying

Check all hoses for leaks, cracks, or soft spots

Verify battery connections are clean and secure

Look for any signs of fluid leaks on ground or engine

Step 4: Complete Air Brake System Check

Start engine and build air pressure to governor cutout (120-140 psi)

Turn engine off and release parking brake

Step on and off brake pedal to reduce air pressure

Low air warning must activate before 60 psi

Continue depleting air - spring brakes must apply by 45 psi

Restart engine and check air pressure build time (under 3 minutes)

With full air pressure, shut off engine and test air leakage rate

Apply service brakes - loss should not exceed 3 psi per minute

Step 5: External Walk-Around Inspection

Start at driver's side of cab, work clockwise around vehicle

Check all lights are clean, working, and proper color

Inspect all reflectors for cleanliness and damage

Verify license plates are clean, visible, and current

Check all tires for proper inflation (use tire gauge)

Inspect tread depth (4/32" steer axle, 2/32" all others)

Look for cuts, bulges, or objects in tire treads

Ensure all lug nuts are present and not loose

Check wheels/rims for cracks or damage

Inspect suspension components for damage or shifting

Step 6: Coupling System Inspection (if applicable)

Check fifth wheel is properly greased

Verify no visible space between upper and lower fifth wheel

Ensure locking jaws are closed around kingpin

Confirm safety latch is engaged

Check that air lines are properly connected

Verify electrical cable is connected and secured

Test trailer brakes are functioning

Ensure landing gear is fully raised and handle secured

Step 7: In-Cab Inspection and Controls Test

Adjust seat and mirrors for proper visibility

Test seat belt for proper operation and fit

Check all gauges are functioning properly

Test horn, turn signals, and 4-way flashers

Verify windshield wipers and washers work properly

Check heater/defroster operation

Test all interior lights function

Ensure fire extinguisher is charged and mounted

Verify emergency triangles are present (3 required)

Check spare fuses are available (if applicable)

Step 8: Final Safety Verification

Start engine and let it warm to operating temperature

Check all warning lights extinguish after startup

Test service brakes at 5 mph for stopping power

Check parking brake holds vehicle on slight grade

Test steering for excessive play (max 2" at wheel rim)

Listen for any unusual noises from engine or drivetrain

Verify transmission shifts properly (automatic or manual)

Complete and sign Driver Vehicle Inspection Report

Report any defects to maintenance immediately

Do not operate vehicle if any safety defects are found

Step 9: Load-Specific Checks (if applicable)

Verify cargo is properly distributed and secured

Check load securement devices meet DOT requirements

Ensure cargo doors are properly closed and latched

Verify placards match hazardous materials being transported

Check that load does not exceed weight limits

Confirm overhead clearance for total vehicle height

Ensure no cargo is blocking emergency exits

Verify load manifest matches actual cargo

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