NHTSA Complaint #11670100 — 2022 GMC SIERRA 1500

Year: 2022 Make: GMC Model: Sierra 1500 Denali 6.2L V8] - Location: Navajo Nation Reservation - [XXX] INCIDENT DESCRIPTION The engine completely seized while driving at highway speed, rendering the vehicle inoperable. Farmington GMC dealership confirmed total engine failure requiring complete replacement. All engine components available for inspection at dealership. I request preservation of all failed components for manufacturer/NHTSA inspection. Safety Risk This catastrophic failure created severe safety hazards: 1. Highway Emergency: Engine seized at approximately 65 mph, causing sudden power loss requiring emergency stop in remote area off [XXX]. 2. Remote Stranding: Breakdown in extremely remote Navajo reservation area with minimal cell service, no local emergency service available, leaving family of three small children, y wife and myself, stranded overnight in vehicle under harsh desert conditions and exposed to robbery or worse. Emotional and mental stress was very high. 3. System Failures: Complete engine failure caused loss of power steering, brakes, air conditioning, and charging systems during emergency stop. Dealer Confirmation YES - Confirmed by Farmington GMC Dealership (Farmington, NM): - Complete engine seizure diagnosis - Total engine failure requiring replacement - All diagnostic documentation available Official Inspections - GMC dealership technicians confirmed engine seizure - Requesting formal GM inspection of failed components - Insurance inspection: Pending to contact USAA - Request: Preserve all components for NHTSA analysis Warning Signs CRITICAL: NO warning signs prior to failure: - Comprehensive service 5 days before failure - all systems normal, fluids topped off Pre-trip service records show all systems within normal parameters Additional Information GMC issued recall for 2021-2024 Sierra engine defects (VINs/parts unavailable) Dealership confirmed relation to known manufacturing defects INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)