SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/dad-co-attached-garage

Is it safe to run a car in an attached garage with the door open?

No, never.

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  1. No, never ✔
  2. Yes, if the door is fully open
  3. Yes, for under ten minutes

Why: CDC says never run your car or truck inside a garage attached to a house, even with the garage door open. CO can seep into the home.

Huh, didn't know that: CDC says to have a mechanic check your car or truck's exhaust system every year.

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When is a car not a car? When it turns into a parking lot.
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References

Answer: No, never. CDC says never run your car or truck inside a garage attached to a house, even with the garage door open. CO can seep into the home.

  1. CDC: About Carbon Monoxide www.cdc.gov/carbon-monoxide/about/index.html
    Never run your car or truck inside a garage that is attached to a house, even with the garage door open.
    Checked 2026-10-10.

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