What To Do If My Subaru Tires Are Damaged
What To Do If My Subaru Tires Are Damaged
Posted on August 19, 2026
One Damaged Tire on a Subaru: Do You Need to Replace All Four?
Finding a nail, sidewall cut, or damaged tire on your Subaru can lead to an expensive question: can one tire be repaired or replaced, or does the all-wheel-drive system mean you need four new tires?
There is no responsible answer without inspecting the damaged tire and measuring the other three. Subaru emphasizes matching important tire characteristics across all four wheel positions, including size, circumference, construction, tread pattern, and degree of wear.
Why Tire Matching Matters on a Subaru
During normal driving, all four tires should cover nearly the same distance with each rotation. A tire with a meaningfully different circumference turns at a different rate. On an all-wheel-drive vehicle, that difference can place unnecessary stress on driveline components.
The size printed on the sidewall is only part of the picture. Tires carrying the same nominal size may still behave differently because of tread design, construction, manufacturing differences, inflation, or wear.
Repair One, Replace One, or Replace Four?
| Situation | Possible Path | What Must Be Checked |
|---|---|---|
| Small puncture in a repairable tread area | A professional internal repair may be possible | Damage location, size, tire condition, prior repairs, and evidence of running underinflated |
| Unrepairable damage on a nearly new tire | One matching replacement may be possible | Exact tire match plus measured circumference and tread wear across all four tires |
| Unrepairable damage with substantial wear on the other tires | Replacing all four may be the appropriate recommendation | Remaining tread, age, cracking, wear pattern, and Subaru requirements for the specific vehicle |
| Different brands or tread patterns already installed | A complete tire assessment is needed | Size, construction, load and speed ratings, circumference, tread pattern, and wear |
When Is a Tire Usually Not Repairable?
Damage in the sidewall or shoulder generally cannot be repaired safely. A tire may also require replacement if the puncture is too large, existing repairs overlap, cords are exposed, the tire has been driven while flat, or age and deterioration make it unsuitable for continued use.
An exterior plug by itself is not a complete professional assessment. The tire should be removed from the wheel so its inner structure can be inspected.
Do Not Rely on a Universal Tread-Depth Rule
Online advice often reduces the decision to one tread-depth number. That shortcut may not account for the exact Subaru, tire design, measured circumference, or current condition of the complete set. Our tire team measures and compares the tires before recommending a course of action.
What to Do After Tire Damage
- Slow down and stop in a safe place if the tire is losing pressure.
- Do not continue driving on a flat tire unless your emergency equipment and Owner’s Manual specifically permit a limited procedure.
- Avoid mixing in a different tire based only on the sidewall size.
- Have the damaged tire and the other three tires inspected together.
Subaru Tire Help in Edmonton
Our team can determine whether the damaged tire is repairable and measure the full set before recommending replacements. Explore our Subaru tire centre or schedule an appointment with Subaru City in Edmonton.