CARFAX shows a tire replacement only when the shop that mounted the tires sends its service records to CARFAX, and even then you get a short service entry, never a tire age or a tread reading. New tires from a cash shop, a mobile installer, or a friend with a tire machine leave nothing behind. So a car on four fresh tires and one on ten-year-old tires can carry the same quiet report. The answer sits on the sidewalls, where a four-digit date code tells you more than any history report can.
What CARFAX actually lists for tires
The one tire item CARFAX advertises is rotations, which is a different job from replacement. When we pulled the CARFAX vehicle history reports page in early October 2026, its service history list read Oil Changes, Tire Rotations, Brake Rotor Replacement, and Transmission Replacement, and the word tire did not appear once in the CARFAX glossary. CARFAX Canada's support page lists sample lines like tires rotated and tire condition and pressure checked, and says detail varies by shop. A rotation line means the old tires got moved around, and our guide to service records shows how terse those rows get.
Why most tire swaps never reach the report
A tire job only lands on CARFAX if the business that did it reports, and lots of tire sellers don't. CARFAX Canada says it can't edit service records because the shops own them, and its service records FAQ tells you to ask the seller for paperwork otherwise. In CR's 2024 tire survey, more than half of members paid nothing for installation, and a free install at a store that doesn't report is easy to miss. The same gap shows up with oil changes on CARFAX, and it's one more entry for what CARFAX doesn't show. Ask for the invoice or the registration card, since federal rules have the selling dealer write the full tire ID number on that card.
Read the date code on the sidewall
Every tire carries its own birth date. NHTSA says the last four digits of the DOT Tire Identification Number give the week and year the tire was made, so 0308 means the third week of 2008, and it warns the number may sit on only one side. The federal rule in 49 CFR Part 574 sets that week-and-year format, and the tire makers' trade group says the TIN starts with DOT. Check all four tires and the spare, since NHTSA notes spares age because they seldom get replaced. Four matching codes from a few months before the car was built usually mean original tires, and a newer pair on one axle means something got replaced.
Age and tread are two separate tests
Deep tread doesn't make an old tire safe. NHTSA says some vehicle and tire makers recommend replacing tires at six to 10 years regardless of treadwear, adds that you can't detect aging just by looking, and flags low annual mileage and Sun Belt heat as risk factors. Consumer Reports suggests 10 years when the automaker sets no limit. For tread, CR's replacement guide uses a quarter, where the top of Washington's head flush with the tread means about 4/32 inch left and time to shop, with 2/32 as the point to toss them. AAA's 2018 testing found tires worn to 4/32 needed an extra 87 feet on average to stop a car on wet pavement at highway speed. CR's short video on old tires says low miles don't make old tires safe.
Fresh tires on a low-mile car deserve a question
Brand-new tires on a low-mile car prove nothing bad on their own, but ask about them. CR's when-to-replace video says a tire can last anywhere from 25,000 to 100,000 miles, so a 22,000-mile car on its second set needs a story. It could be a nail or a seller dressing the car up, or it could be a curb strike that bent a wheel, an unreported fender hit, or stolen wheels, which our posts on unreported accidents and theft recoveries with stolen wheels cover. Worn-out tires on a car with suspiciously low miles belong next to our odometer rollback checks.
Uneven wear points past the tires
Odd tire wear usually points at something under the car. CR's list of early warning signs says uneven tread wear can come from bad inflation, misaligned wheels, damaged tires, or suspension problems, and that vibration can mean a bent or unbalanced wheel. NHTSA says rotating every 5,000 to 8,000 miles, if your automaker recommends it, helps limit irregular wear. One front tire chewed on the inside edge after a minor crash is worth a mechanic's look at the steering parts, even if the report calls it one of the minor accidents on CARFAX. Bring the report to the pre-purchase inspection and ask for tread depths on all four in writing.
Tire recalls follow the tire, not the VIN
A VIN recall check won't flag a recalled tire, because tire recalls run on the TIN and the buyer's registration. NHTSA's recall page says a VIN or plate search shows whether that vehicle needs a repair, a tire search returns only general results, and owners should register tires and check twice a year. NHTSA repeated it on X in November 2024. Toyo's February 2026 filing recalled 567 Open Country A/T III tires built in July 2025, all with date code 2925, because tread sections could separate, and its free replacement program was set to run through October 5, 2026. Goodyear's April 2026 filing covered 69 Eagle F1 Supersport tires coded 3525 to 3725. Toyo planned to mail owners who had registered.
Honestly, registration is the weak link. Under 49 CFR 574.8 an independent dealer can hand you a paper card to mail yourself, and a NHTSA interpretation letter quotes the tire makers' trade group saying no more than 10 percent of those cards came back, a figure from the early 2000s. A used-car buyer was never on that list anyway, so register the tires in your name through the brand links on the USTMA page. Our posts on NHTSA vs CARFAX recalls and open recalls cover the vehicle side.
What a set costs, and using it on price
Worn or aged tires are money off the price. CR's 2024 member survey put the average at $212 per tire, with a $31 median install among those who paid for it, and CR posted on X that $800 or more for four tires plus mounting and balancing is common. Size and brand swing that a lot. A receipt that says new doesn't settle age either. WCVB's 2014 undercover check found a Sears center willing to install a seven-year-old clearance tire, and CBS Texas reported in 2019 that no laws stop stores from selling aging tires.
Pull your own report before the test drive
Look, a seller's PDF with a tidy four new tires line is easy to fake, so run the VIN yourself and compare it with our fake CARFAX checklist. Through us a CARFAX report runs about $5.50 as a guest or $4.50 as a member, and the CARFAX plus AutoCheck bundle is about $6.75, against roughly $39.99 to $44.99 retail, so confirm at checkout. We're a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck, or Experian. Then line its shop dates up against the date codes.
A five-minute tire check at the car
Photograph the date code on all four tires and the spare, then run the quarter test on each. Write the codes next to the CARFAX service dates, because a tire built after the last reported tire visit usually went on somewhere that doesn't report. If the codes are older than six years, or the tread is near 4/32, price a set and say so out loud. Uneven wear goes to the mechanic, and a recalled code goes to the tire brand's dealer before you sign.
Sources
- CARFAX, Vehicle History Reports (service history incl. Tire Rotations)
- CARFAX, Glossary
- CARFAX Canada Support, Service records on my report
- CARFAX Canada Support, Odometer readings and service records FAQ
- NHTSA, TireWise: tire aging, TIN date code, rotation
- eCFR, 49 CFR Part 574 Tire Identification and Recordkeeping
- U.S. Tire Manufacturers Association, Register your tires
- Consumer Reports, How to decode tire size and other data
- Consumer Reports, How to know when to replace your tires
- AAA Newsroom, Worn tires put drivers at risk (June 2018)
- Consumer Reports on YouTube, The hidden dangers of old tires
- Consumer Reports on YouTube, When to replace your tires
- Consumer Reports, Early warning signs of tire failure
- NHTSA, Check for recalls: vehicle, car seat, tire, equipment
- NHTSA on X, check your tires for safety recalls (Nov 2024)
- NHTSA Part 573 report 26T005, Toyo Open Country A/T III
- NHTSA Part 573 report 26T011, Goodyear Eagle F1 Supersport
- LII, 49 CFR 574.8 tire dealer registration duties
- NHTSA interpretation letter, online tire registration
- Consumer Reports, How to save money when buying tires
- Consumer Reports on X, cost of four tires (Nov 2024)
- WCVB Team 5 Investigates, Aged tires sold as new (2014)
- CBS Texas, Tires display birth dates but no expiration dates (2019)
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