SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-hot-weather-tire-check

In very hot weather, how often should you inspect your tires?

Inspect tires every 2 hours or 100 miles in very hot weather.

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  1. Once a day at the pre-trip
  2. Every 2 hours or 100 miles ✔
  3. Only when a tire looks low

Why: Heat raises tire pressure and can lead to a blowout. Do not let air out of hot tires, or the pressure will be too low once they cool.

Huh, didn't know that: If a tire is too hot to touch, stay stopped until it cools off.

The dad joke
Why did the tire check itself when cool? It did not want to inflate its ego.
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References

Answer: Every 2 hours or 100 miles. Heat raises tire pressure and can lead to a blowout. Do not let air out of hot tires, or the pressure will be too low once they cool.

  1. California Commercial Driver Handbook (AAMVA model manual) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Inspect the tires every 2 hours or every 100 miles when driving in very hot weather.
    Checked 2026-10-10.

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