Can You Replace One Tire on an AWD Car?

One new tire can create a rolling-diameter mismatch on an AWD vehicle; the acceptable difference is vehicle-specific.

Measure before ordering

Have a tire shop measure remaining tread depth and inspect the existing tires. Check the owner’s manual or manufacturer policy for allowable mismatch.

Choose the approved remedy

Depending on vehicle guidance and tire condition, the shop may recommend one matched or shaved tire, a pair or a complete set. Do not treat one universal tread-depth number as an AWD rule.

Put the answer to work

Start with the actual vehicle label or installed component. Then use our vehicle directory and comparison tools to narrow the research. Any missing condition should be checked with the manufacturer or a qualified installer.

Official and manufacturer references

• https://www.nhtsa.gov/vehicle-safety/tires