2018 GMC SIERRA 1500 — Complaint #2158114
Open-data reference.
NHTSA Complaint about VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:CONDENSOR/EVAPORATOR filed December 17, 2025
NHTSA complaint #2158114 (ODI reference 11705563) concerns a 2018 GMC SIERRA 1500 and was filed on December 17, 2025. The owner reports the failure occurred on December 17, 2025. The report was geocoded to California based on the filer's self-reported location. The affected component is categorized as visibility:defroster/defogger/hvac system:condensor/evaporator, 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 SIERRA 1500 cohort independently describe similar visibility:defroster/defogger/hvac system:condensor/evaporator 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 2018 GMC SIERRA 1500 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the air conditioning system became inoperable. There was no warning light illuminated. The contact stated that the air conditioning system failed to function properly. The vehicle was taken to an independent mechanic, where it was diagnosed, and determined that the air conditioning condenser had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was not available.
Complaint Details
| NHTSA Complaint ID | 2158114 |
| ODI Number | 11705563 |
| Date Filed | December 17, 2025 |
| Failure Date | December 17, 2025 |
| VIN | 3GTP1MEC1JG |
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.