A car code reader plugs into the vehicle’s OBD-II diagnostic port, communicates with the onboard computer, and displays stored trouble codes. You can use it to identify the system reporting a problem, but the code is a starting point for diagnosis—not proof that a particular part needs replacement. The practical distinction many drivers miss is…
The date code on a Cooper tire is the final four digits of the full DOT Tire Identification Number (TIN). The first two digits identify the week of manufacture, and the last two identify the year, so “2322” means the tire was made during the 23rd week of 2022. The difficult part is often locating…
The last four digits of a Michelin tire’s complete DOT code show when it was made: the first two digits identify the production week, and the final two identify the year. For example, 1423 means the tire was manufactured during the 14th week of 2023. Reading the code correctly matters because a tire’s age can…
The date code on a Toyo tire is the final four digits of the DOT Tire Identification Number: the first two digits show the manufacturing week, and the last two show the year. For example, “3522” means the tire was made during the 35th week of 2022. The difficult part is finding the complete code,…
The date code on a motorcycle tire is usually the final four digits of the DOT tire identification number. The first two digits show the production week, and the last two show the production year; for example, 2423 means the tire was made during the 24th week of 2023. The practical difficulty is finding the…
The Continental tire date code is the final four digits of the DOT Tire Identification Number (TIN): the first two digits show the manufacturing week, and the last two show the year. For example, 3523 means the tire was made during the 35th week of 2023. This article explains where to find that code, how…
The Bridgestone tire date code is the final four digits of the Department of Transportation (DOT) identification number on the sidewall. The first two digits show the week of manufacture, and the last two show the year—for example, 3522 means the tire was made during the 35th week of 2022. Finding that code is usually…
A 3-digit tire date code identifies the week and year a tire was manufactured, but it applies only to tires made before 2000. The first two digits show the production week, and the final digit shows the year within a decade. For example, a code ending in “248” means the tire was made during week…
A tire size code tells you the tire’s width, aspect ratio, construction, wheel diameter, load capacity, and speed rating. Reading it correctly helps you choose a replacement that fits the wheel and performs safely with the vehicle. The difficult part is identifying which characters describe physical dimensions and which indicate service limits, vehicle type, or…
To read tire sidewall codes, break the markings into separate sections: tire type, width, aspect ratio, construction, wheel diameter, load index, speed rating, manufacture date, and safety information. For example, P215/65R17 95H identifies a passenger tire that is 215 millimeters wide, has a 65-series sidewall, fits a 17-inch wheel, carries a 95 load index, and…