The Used-Car Inspection Checklist: What to Check Before You Buy

7 min read · Updated August 19, 2026

A used car can look great in photos and still hide expensive problems. A methodical walk-around takes fifteen minutes and can save you thousands. Use the checklist below whether you're inspecting in person or reviewing a seller's video walkaround.

In the Windsor–Detroit region, pay special attention to rust: road salt is used heavily through the winter, and it's the single most common thing that quietly ages a car in this climate.

Exterior

  • Panel gaps that are uneven can signal past collision repair.
  • Paint that doesn't match between panels, or overspray on trim and seals.
  • Rust — check wheel arches, rocker panels, door bottoms, and the tailgate. Surface rust is cosmetic; bubbling or flaking over structural areas is not.
  • Glass for chips or cracks, and that all lights work.

Tires and brakes

  • Even tread wear across each tire (uneven wear hints at alignment or suspension issues).
  • All four tires matching in brand and age is a good sign of maintenance.
  • Brake pads and rotors — listen for grinding or squealing on the test drive.

Under the hood

  • Oil on the dipstick should be reasonably clean, not gritty or milky.
  • Coolant and brake fluid at proper levels and not contaminated.
  • No obvious leaks, corrosion on the battery terminals, or frayed belts.
  • Look for a fresh coat of engine paint or degreaser that might hide a leak.

Interior

  • Every electronic feature: windows, locks, A/C and heat, infotainment, cameras.
  • Warning lights on the dash at startup should turn off — a check-engine light that stays on needs a scan.
  • Wear consistent with the mileage (heavily worn pedals or seats on a 'low-mileage' car is a red flag).
  • Smell for damp/musty odours that suggest a past leak or flood.

The test drive

  • Cold start — start the engine cold if possible and listen for knocks or rough idle.
  • Steering that tracks straight and doesn't vibrate.
  • Smooth, predictable shifts; no slipping or harsh clunks.
  • Brakes that stop straight without pulling or pulsing.
  • Test at both low speed and highway speed if you can.

Paperwork and history

  • Match the VIN on the dash, door jamb, and documents.
  • Run a vehicle history report (CARFAX / CARFAX Canada) for accidents, title branding, and odometer checks.
  • In Ontario, review the Used Vehicle Information Package (UVIP); in Michigan, confirm a clean title.
  • Ask for service records — consistent maintenance is worth paying a little more for.

Why video makes this easier

Photos hide things a video can't — how the engine sounds at idle, how the panels reflect light, how worn the driver's seat really is. Every RovaFi listing is a walkaround video, so you can run most of this checklist before you ever message the seller, and focus your in-person time on the cars that are genuinely worth the trip.

Frequently asked questions

What is the most important thing to check on a used car?

There isn't a single one, but the highest-value checks are a vehicle history report, a cold-start test drive, and a careful look for rust and past collision repair. Together those catch the most expensive surprises.

Should I get a pre-purchase inspection?

For any car you're serious about, yes. An independent mechanic's pre-purchase inspection typically costs far less than the first repair it can help you avoid, and it gives you leverage to negotiate.

This guide is general information, not legal or financial advice. Cross-border and registration rules change and vary by vehicle — confirm current requirements with the official agencies (Transport Canada’s RIV program, the CBSA, and U.S. Customs and Border Protection) before you buy or import.