How to Read a Vehicle History Report Before You Buy

A vehicle history report is one of the most useful tools when you shop for a used car. It's also easy to misread. Here's what the sections mean and what a report can't tell you.

What a report can include

According to CARFAX, its reports check several kinds of records:

• Accident data: reported accidents, damage severity and airbag deployment.
• Service history: reported maintenance such as oil changes and tire rotations, and open recalls.
• Type of use: whether the vehicle was a personal, rental or leased vehicle, among others.
• Ownership history: the number of previous owners, how long each owned it, the last reported mileage, odometer rollback and title brands such as flood or lemon.

How to read the key sections

Number of owners

A "1-Owner" vehicle has had one reported owner. Fewer owners can mean more consistent care, but the service records tell you more than the count alone.

Accidents and damage

A reported accident isn't automatically a deal-breaker — minor damage that was properly repaired is common. Look at the severity, whether airbags deployed, and ask what was repaired. Severe damage deserves a closer inspection.

Service records

Regular oil changes and maintenance at reasonable intervals are a good sign. Gaps don't always mean neglect — not every shop reports to history services — so ask whether the seller has paper records.

Title brands

Brands such as salvage, flood or lemon are serious and affect value, insurance and resale. Make sure you understand any brand before you buy.

Mileage

Reported mileage should increase steadily over time. A sudden drop can signal an odometer problem.

Red flags worth a closer look

• A title brand (salvage, flood, lemon) you weren't told about.
• Mileage that goes down between records, or long gaps with no mileage reported.
• Severe damage or airbag deployment with no details on the repair.
• Frequent ownership changes in a short period.
• Open recalls — these are usually repaired free by the manufacturer's dealers, so ask whether they've been done.

A red flag doesn't always mean "walk away." It means ask questions and inspect carefully.

Questions to ask the seller

• Is there a vehicle history report I can see?
• What reconditioning or repairs were done before it was listed?
• Are there service records beyond what's on the report?
• Have any open recalls been completed?

What a report can't tell you

CARFAX itself notes that it doesn't have the complete history of every vehicle, and recommends using a report along with a vehicle inspection and a test drive. Not every accident or repair is reported. That's why the inspection and test drive matter — see our used car test drive checklist.

Common questions

Is a 1-owner vehicle always better?

Not always. A well-maintained two-owner vehicle with complete service records can be a better choice than a one-owner vehicle with gaps. Look at the whole picture.

Does "no accidents reported" mean it's never been in one?

No. It means no accident was reported to the history service. That's why an inspection and test drive still matter.

What about a vehicle with a reported accident?

Look at the severity and the repair, then inspect and drive it. Minor, properly repaired damage is common on used vehicles; it may also be reflected in the price.

At Allegiant Automotive

When a vehicle history report is available for one of our vehicles, you'll find it on the vehicle's page. If you don't see one, just ask — and feel free to ask us any question about a vehicle's history before you visit. Start by browsing our inventory or ask us to confirm details on any vehicle you like.