Complaint 2175073
2021 GMC ACADIA • ENGINE • incident Aug 11, 2025
Complaint Summary
ENGINE
Owner Narrative
The contact owns a 2021 GMC Acadia. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and DTC: P04FB; was displayed. The vehicle was taken to the dealer where it was diagnosed with moisture of the crank case. The vehicle was repaired. The contact stated that the failure was a quick fix and was covered under the warranty. The contact stated that the failure had occurred several times and was covered under warranty. The contact was informed that there was no fix for the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 37,000.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.
Related
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