If you notice a cooling fan that runs after the engine is switched off, capture the exact conditions instead of relying on “it happens sometimes.” Record how long it runs, recent driving conditions, and whether the engine temperature was high. Save the date, mileage, and any warning message.
Repeatable notes help a technician reproduce the concern and distinguish a one-off event from a pattern. Check the manual because some vehicles intentionally run the fan briefly; keep clear of it even when parked.
Quick educational note
For information, not a diagnosis or repair instruction. Vehicle-specific checks are still required. Consult the manufacturer's guidance and a qualified technician.
How to use this information
This article explains general principles and does not establish what is wrong with your vehicle. Read the content limitations.