NHTSA Complaint #11715808 — 2018 HONDA ACCORD
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11715808 |
| Vehicle | 2018 HONDA ACCORD |
| Component | ENGINE |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | FL |
Consumer Description
The cylinder head gasket on this vehicle has failed, causing engine coolant to leak into the combustion chambers (coolant intrusion). This has resulted in a recurring and dangerous loss of motive power that has put my safety and the safety of other motorists at risk on multiple occasions. Specifically, the vehicle has repeatedly entered "Limp Mode" while in active traffic, causing a sudden, drastic loss of acceleration that left me unable to maintain the flow of traffic or safely maneuver. This component failure is available for inspection upon request. The problem has been officially confirmed by Holman Honda of Fort Lauderdale, where technicians diagnosed the blown head gasket and confirmed the presence of coolant in the cylinders. The manufacturer's authorized dealership has inspected the vehicle and provided a formal repair estimate. Prior to the multiple "Limp Mode" failures, the vehicle exhibited clear warning symptoms starting in late 2025, including violent engine stuttering and a "shimmering" vibration during cold starts. Additionally, a distinct "gurgling" or bubbling sound was audible behind the dashboard, indicating combustion gases displacing coolant. During the actual failure events, the dashboard displayed a "Christmas Tree" effect of warning lamps, including "Emissions System Problem," "Brake System," and "Power Steering System" alerts, which disabled critical safety and driver-assist features while the vehicle was in motion. This persistent design defect has created a high risk for rear-end collisions and total engine seizure.
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