Fleet vehicle safety inspection checklist: What to check before every journey
By Gareth Dunne — July 2026
A proper pre-journey safety inspection keeps your fleet legal, your drivers safe, and your vehicles on the road. In the UK and Ireland, operators have a legal duty under the Road Traffic Acts and Operators’ Licence conditions to ensure every vehicle is roadworthy before it leaves the depot. Skipping the walkaround might save five minutes in the morning, but it can cost thousands in fines, repair bills, and downtime. A single roadside prohibition can delay deliveries by hours, trigger follow-up inspections from the traffic commissioner, and damage your operator’s licence rating.
What should a thorough daily check cover? Here is a practical, no-nonsense checklist that works for trucks, vans, and trailers alike. It is based on the DVSA’s own guide to daily walkaround checks and covers the most common defect categories found at roadside inspections.
Start with the cab: mirrors, windscreen, wipers, and washers. Are mirrors cracked or loose? Any chips in the windscreen larger than a 10p coin? Windscreen washer fluid topped up, and wiper blades clearing the glass properly? These seem small, but an MOT failure on wipers or washer jets is an unnecessary expense. Check that the horn works, the seatbelt retracts and locks, and that no dashboard warning lights are on.
Tyres are where most defects show up. Check tread depth across the full width of the tyre — the legal minimum is 1.6 mm on cars and vans, 1.0 mm on some trailers, but sensible operators replace at 3 mm for wet-weather safety. Look for cuts, bulges, or embedded objects in the sidewall and tread. Check pressures when tyres are cold. Underinflated tyres cause excessive wear, higher fuel consumption, and increased risk of blowouts at motorway speeds. Do not forget the spare, if fitted. A spare wheel carrier that has rusted solid is almost as useless as having no spare at all.
Lighting is the most common cause of roadside prohibitions. Walk around the vehicle and check every lamp: headlights, indicators, brake lights, tail lights, fog lights, and reverse lights. Have someone sit in the cab to operate the brakes and indicators while you walk round, or use a reflective surface if you are alone. Bad connections, corroded bulb holders, and chafed wiring are the usual culprits. For fleets looking to cut down on lighting failures, the Strands FOR9T Light Range is worth a look — these lamps are built for the harsh conditions that commercial vehicles face every day, with robust polycarbonate housings and reliable LED performance that outlasts traditional bulbs by years. Here’s Strands FOR9T light range at on their store here.
Brakes demand more than a visual check. Listen for air leaks on air brake systems — a hissing sound that persists after the compressor stops is a defect. Check the brake fluid reservoir level on hydraulic systems. Look for visible brake line corrosion or chafing, especially where lines pass over suspension components. On trailers, check the coupling head and service brake operation. A full brake test should be part of your weekly inspection, not just the daily walkaround. Failed brakes are the most serious defect category in DVSA enforcement statistics.
Under the bonnet (or cab tilt), check engine oil level on the dipstick, coolant level in the expansion tank, power steering fluid, and windscreen washer reservoir. Look for leaks around the engine, gearbox, and axles. A puddle of oil under a parked truck is a defect that needs fixing before the vehicle moves. Check the battery terminals for corrosion and ensure the battery is securely clamped. A loose battery can short against the bodywork and cause an electrical fire.
Couplings and towing equipment need special attention on any vehicle that pulls a trailer. Check the fifth wheel or tow hitch for wear, cracks, or excessive movement. Inspect the air and electrical lines for chafing, kinks, or loose connections. The 13-pin electrical connector should click home firmly and be free of bent pins or corrosion. Carry a spare plug — they cost around a fiver and save hours of electrical troubleshooting if the original gets damaged.
Load security is a legal requirement under the DVSA’s loading code. Check that the load is properly restrained, that lashing points are secure, and that no part of the load can shift during transit. Curtain-side trailers need their straps tensioned and curtains free of tears that could allow the load to escape. A load shift at speed is one of the most dangerous events that can happen on a motorway.
Keep a written record of every check. A daily walkaround sheet signed by the driver is your evidence that you are meeting your legal obligations. DVSA and RSA examiners will ask to see these records during a roadside check or desk-based investigation. Without them, you are presumed non-compliant until you prove otherwise. Digital systems are fine, but a paper sheet in the cab is harder to argue with at the roadside.
The whole check takes ten to fifteen minutes for an experienced driver. That quarter of an hour is the best insurance policy your fleet can have. Build it into your daily routine, make it a non-negotiable part of every shift, and your fleet will spend more time earning money and less time sitting in a workshop waiting for repairs.