Interactive Guide

    How to Check Your Trailer Before Every Trip

    A comprehensive pre-trip inspection checklist aligned with FMCSA 393.75 requirements. Check each item before every trip to stay safe, compliant, and on the road.

    10 min readBy EricUpdated January 20, 2026

    Every professional driver knows that a thorough pre-trip inspection is the foundation of a safe journey. According to the Federal Motor Carrier Safety Administration (FMCSA), vehicle maintenance issues contribute to over 10% of all truck crashes. A proper pre-trip inspection can catch these problems before they cause breakdowns, accidents, or costly DOT violations.

    At CRUMS Leasing, we maintain our fleet to the highest standards so your inspections go smoothly. Use this interactive checklist to ensure you never miss a critical safety item.

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    Why Pre-Trip Inspections Matter

    • Safety First: Catch issues before they cause accidents or breakdowns
    • Stay Compliant: FMCSA requires pre-trip inspections (49 CFR 396.13)
    • Avoid Fines: DOT violations can cost $180 to $16,000+ per offense
    • Protect Your CSA Score: Vehicle maintenance violations affect your safety rating

    1. Tires & Wheels

    Check all tires for proper inflation, tread depth, and wheel condition.

    Tire pressure within manufacturer specs (95-110 PSI typical)
    Tread depth minimum 4/32" for steer, 2/32" for drive/trailer
    No cuts, bulges, or exposed cords on sidewalls
    All valve stems present with caps
    Matching tire sizes on each axle
    Lug nuts tight and none missing
    Rims free of cracks, dents, or damage
    Hub seals not leaking oil

    2. Brakes & Air System

    Verify brake components and air system integrity for safe stopping.

    Air pressure builds to governor cut-out (120-140 PSI)
    No audible air leaks at connections
    Glad hands sealed and secured properly
    Air lines not rubbing, cracked, or kinked
    Brake chambers secure and not cracked
    Slack adjusters properly adjusted (< 1" travel)
    Brake pads/shoes have adequate material
    Spring brakes release properly
    Low air warning activates at 60 PSI

    3. Lights & Reflectors

    Ensure all lighting and reflective equipment is operational.

    All marker lights operational (front, side, rear)
    Brake lights illuminate when brakes applied
    Turn signals working (left and right)
    Clearance lights functional
    No broken or cracked lenses
    Reflective tape intact (DOT-C2 conspicuity)
    License plate light working
    ABS indicator light functioning

    4. Coupling Equipment

    Inspect fifth wheel, kingpin, and landing gear for secure connection.

    Fifth wheel locked around kingpin (no gap)
    Kingpin not bent, cracked, or worn
    Apron plate not damaged or bent
    Landing gear fully raised and secure
    Landing gear crank handle stowed
    No visible cracks in fifth wheel plate
    Release handle in locked position
    Slide pins locked (if sliding fifth wheel)

    5. Doors & Seals

    Check door operation and cargo protection.

    Rear doors open/close freely
    Door hinges not bent or broken
    Latch mechanisms lock securely
    Weather seals intact (no gaps)
    Door handles operational
    Safety/security seal in place if required

    6. Body & Frame

    Examine trailer structure and undercarriage.

    Floor intact with no holes or soft spots
    Sidewalls and roof free of holes/damage
    No frame cracks or visible damage
    Mud flaps present and secured
    Undercarriage components secure
    No sharp edges that could injure or damage cargo
    Logistic posts/E-track in good condition

    7. Documentation & Equipment

    Verify all required documents and safety equipment.

    Current registration on file
    Annual inspection sticker valid (within 12 months)
    Load securement equipment available (straps, bars)
    Triangles/reflectors for emergency use
    Fire extinguisher present and charged

    Pro Tips for Efficient Inspections

    Walk-Around Method

    Start at the driver's door and walk counter-clockwise around the entire rig. This systematic approach ensures you never miss a component.

    Use All Your Senses

    Look for damage, listen for air leaks, feel for loose components, and smell for burning or leaking fluids. A complete inspection uses every sense.

    Document Everything

    Keep records of your inspections. If you find issues, note them in your DVIR (Driver Vehicle Inspection Report) before operating the vehicle.

    Know Your Equipment

    Familiarize yourself with the specific make and model. Different trailers have different features and potential problem areas.

    Need a Well-Maintained Trailer?

    CRUMS Leasing trailers are inspected before every lease. Start your journey with equipment you can trust.

    Sources

    [1] Federal Motor Carrier Safety Administration (FMCSA), 49 CFR 396.13 - Driver Inspection

    [2] FMCSA 49 CFR 393.75 - Tires and Wheels Requirements

    [3] Commercial Vehicle Safety Alliance (CVSA) Out-of-Service Criteria