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Tire Pressure and Tread: The 5-Minute Safety Check

Use pressure, tread depth, spare-tire readiness, and visible damage checks to decide whether to inflate, repair, or replace.

7 minUpdated Jun 9, 2026
Audience
Commuters, road-trip drivers, RV owners, and anyone seeing a tire warning
Outcome
You will know whether the tire issue is a top-off, a service visit, or a do-not-delay replacement.
tires
tpms
pressure
tread

Key takeaways

NHTSA says tires are not safe and should be replaced when tread is worn to 2/32 inch.
Check pressure at least monthly and before long trips.
Use the vehicle placard or owner manual for recommended cold tire pressure, not the sidewall maximum.
Interactive tool
Tire pressure and tread triage
Compare pressure and tread against practical action thresholds.
Top off soon

Bring pressure back to the placard value when tires are cold.

Pressure first

Tire pressure changes with temperature and use. Check pressure when the tires are cold, compare against the placard or manual, and do not use the sidewall maximum as your normal target.

Tread is the stopping-distance check

Tread helps the tire channel water and maintain grip. When tread reaches 2/32 inch, replacement is due. Uneven wear, cracks, bulges, or foreign objects are service signals even if tread depth looks acceptable.

Do not forget the spare

A fully stocked car is still vulnerable if the spare tire is flat or missing. Check the spare, inflator, jack, lug wrench, and wheel-lock key before a long drive.

Action checklist

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