2023 GMC ACADIA — Complaint #2067158
Open-data reference.
NHTSA Complaint about ENGINE filed February 19, 2025
NHTSA complaint #2067158 (ODI reference 11643702) concerns a 2023 GMC ACADIA and was filed on February 19, 2025. The owner reports the failure occurred on December 18, 2024. The report was geocoded to Michigan based on the filer's self-reported location. The affected component is categorized as engine, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.
The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.
Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same GMC ACADIA cohort independently describe similar engine failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2023 GMC ACADIA shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
I am experiencing a recurring P04FB diagnostic trouble code on my 2023 GMC Acadia, related to the crankcase pressure sensor. GM issued Bulletin No. PIP5841C, which attributes the issue to moisture buildup freezing inside the sensor. Their recommended fix is to remove the sensor, blow out any moisture, and reinstall it. However, this is not a permanent solutionâthe code returns within days, suggesting an inherent design flaw in the PCV system. Additionally, the replacement sensor (Part #12718935) is on national backorder, making it impossible to obtain. Many owners across multiple GM models using this engine (such as the Chevrolet Blazer and Cadillac XT4) are experiencing the same problem, yet GM has not provided a real solution. A properly designed PCV system should not allow excessive moisture to accumulate in the sensor. Instead of addressing the root cause, GMâs bulletin merely delays the issue by temporarily clearing the moisture. This approach does not prevent the problem fr
Complaint Details
| NHTSA Complaint ID | 2067158 |
| ODI Number | 11643702 |
| Date Filed | February 19, 2025 |
| Failure Date | December 18, 2024 |
| VIN | 1GKKNUL46PZ |
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Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.