Complaint 2218469
2021 GMC SIERRA 1500 • ENGINE AND ENGINE COOLING • incident Jun 18, 2026
- Complaint ID
- 2218469
- Make
- GMC
- Model
- SIERRA 1500
- Model Year
- 2021
- Component
- ENGINE AND ENGINE COOLING
- Incident Date
- Jun 18, 2026
- Date Received
- Jun 22, 2026
- Data As Of
- Jul 1, 2026
Complaint Summary
ENGINE AND ENGINE COOLING
Owner Narrative
The contact owns a 2021 GMC Sierra. The contact stated that while driving at approximately 40-45, the engine warning light illuminated. There was an abnormal sound coming from the fan. The vehicle was taken to the local dealer, where it was diagnosed and determined that the coolant flow valve needed to be replaced. The vehicle was not included in a special coverage program. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 50,000.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.
Related
Data sources & freshness
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