NHTSA Complaint #11690358 — 2020 FORD F-150

Component/System Failure: The 10-speed automatic transmission failed prematurely at only 75,000 miles. The transmission is still in the vehicle and available for inspection upon request. The symptoms include harsh shifting between gears, particularly into lower gears, followed by significant lag and then abrupt jumping/engagement. This is consistent with numerous other complaints filed regarding the 10-speed transmission in this model year. Safety Risk: The unpredictable transmission behavior created dangerous driving conditions. The harsh shifting and lag followed by sudden acceleration made it impossible to safely merge into traffic, navigate intersections, or maintain consistent speed on highways. The erratic gear engagement put myself, my passengers, and other drivers at risk as the vehicle's response became completely unreliable. The truck is currently unsafe to drive. Professional Confirmation: Yes, the problem has been confirmed by Aamco Transmission on Sept 17, 2025. They diagnosed it as transmission failure requiring complete replacement. Manufacturer/Other Inspection: No inspection by Ford has occurred to date. Warning Indicators: No warning lights, check engine lights, or dashboard messages appeared prior to or during the failure. The only symptoms were the physical driving symptoms described above—harsh shifting, significant lag, and abrupt gear engagement—which began approximately gradually over the past month and progressively worsened until the vehicle became unsafe to operate.