Pre-Roadworthy Inspection Checklist – Avoid Failed Inspections

Getting your vehicle ready for a roadworthy inspection can feel stressful. A failed inspection means extra time, money, and hassle. The good news is that many common issues can be spotted and fixed before the official check. This guide walks you through a simple pre-roadworthy inspection checklist to help you avoid failed inspections and keep your vehicle safe on the road.

Dashboard warning lights on vehicle

Check All Lights

Lights are one of the easiest things to check yourself but also one of the most common reasons for failure. Make sure to test:

• Headlights (both low and high beams)

• Brake lights

• Indicators (left and right)

• Reverse lights

• Hazard lights

• Number plate lights

  
  

Ask a friend to help or park your vehicle in front of a reflective surface to see if all lights work properly. Replace any blown bulbs immediately. Remember, faulty lights reduce your visibility and increase accident risk.

Inspect Tyres Thoroughly

Tyres must have sufficient tread depth and no visible damage. Use a tread depth gauge or the 1-cent coin test: insert a coin into the tread grooves; if you can see the top of the coin, the tread is too shallow.

Look for:

• Uneven wear patterns

• Cracks or bulges on sidewalls

• Correct tyre pressure according to the manufacturer’s recommendation

  
  

Worn or damaged tyres are a common reason for failing roadworthy inspections and can be dangerous on wet or slippery roads.

Ensure Seatbelts Work Properly

Seatbelts must latch securely and retract smoothly. Check each seatbelt for:

• Fraying or cuts in the webbing

• Broken or jammed buckles

• Proper locking when pulled sharply

  
  

Seatbelt faults are taken seriously during inspections because they directly affect passenger safety.

Monitor Dash Warning Lights

Before the inspection, start your vehicle and watch the dashboard for any warning lights. Common lights to watch include:

• Engine check light

• ABS warning

• Airbag warning

• Oil pressure light

  
  

If any warning lights stay on, have the vehicle diagnosed and repaired. These lights indicate potential mechanical or safety issues that will cause an automatic fail.

Car tyres close-up showing tread and sidewall

Check Windscreen Condition

The windscreen must be free of cracks, chips, or damage that could impair the driver’s vision. Even small chips can spread and cause failure. Inspect the windscreen for:

• Cracks longer than 15cm

• Chips in the driver’s line of sight

• Damaged or worn wiper blades

  
  

Replace or repair any damage before the inspection. Clear visibility is essential for safe driving and inspection approval.

Test the Battery and Electrical System

A weak or faulty battery can cause electrical issues during the inspection. Check that:

• Battery terminals are clean and free of corrosion

• The battery holds a charge and starts the vehicle reliably

• All electrical accessories (horn, radio, power windows) work properly

  
  

If your battery is old or unreliable, consider replacing it before the inspection.

Verify Vehicle Identification Number (VIN)

The VIN must be clearly visible and match the registration documents. Inspectors check this to confirm the vehicle’s identity. Common VIN locations include:

• Driver’s side dashboard (visible through the windscreen)

• Driver’s side door frame

• Engine bay

  
  

Make sure the VIN plate is not damaged or tampered with.

Motorcycle roadworthy inspection

Vehicle-Specific Tips

Different vehicles have unique requirements for roadworthy inspections. Here are some tips for common types:

Cars

• Check windscreens and wipers are in good condition

• Test brakes for responsiveness and noise

• Inspect exhaust system for leaks or damage

• Make sure all lights work

• Factory cruise control must be operational

• At least 50% of all windows and doors work (this must include the drivers side)

• Seat belt damage from car seats and being jammed in fold down seats

• Check tyres have at least 1.5mm of tread across the tyre tread and no side wall damage

• Body panels are secure

• Repair any oil leaks

  
  

Trailers

• Ensure all lights and reflectors work

• Check tyre condition and pressure

• Verify trailer coupling and safety chains are secure and attached correctly

• Tyres, wheel bearings and brakes are in good condition

• VIN plates are attached after 1989

• VIN / Chassis number is stamped or welded into the draw bar

  
  

Scooters and Motorcycles

• Confirm mirrors are intact and properly adjusted and the correct mirror size

• Test horn and lights

• Check tyre tread and brake function

• Make sure fairings are not damaged, secure and free from sharp edges

  
  

Caravans

• Inspect gas fittings and appliances for leaks

• Check water and electrical systems

• Ensure door locks and windows operate smoothly

• Check safety chains and attachments

• Check break away battery is in good working order

• Tyres, brake and wheel bearings are in good condition

• All lights and clearance lights are operational

  
  

Save Time and Money with Easy DIY Pre-Checks

Performing these simple checks yourself can save you from unexpected failures and costly repairs. It also speeds up the inspection process, so you get your roadworthy certificate faster. If you find any issues, fix them or consult a mechanic before booking your inspection.

For a detailed overview of the roadworthy certificate process, see our Complete Guide to Roadworthy Certificates in QLD.

Taking a few minutes to prepare your vehicle can make a big difference. It helps keep you safe, protects your investment, and ensures your vehicle meets legal standards.

Making sure your trailer is in good condition helps you pass your roadworthy first time