Vehicle
2020 LINCOLN NAVIGATOR
Manufacturer
Ford Motor Company
Components
POWER TRAIN
Dates
Incident: 05/15/2026
Filed: 05/20/2026
Owner complaint summary
CDF Drum Failure is a known issue to Ford. They have issued a technical service bulletin (TSB 22-2428) to replace poorly designed components that have since been redesigned. The failure mode can cause violent gear shifts (from gear 10 to gear 1) at high speeds, which is a significant safety concern. While driving on the highway, the transmission would not shift between gears and the car lurched. Check engine light came on and I exited the highway immediately. I took my vehicle to be looked at, and they diagnosed the problem as CDF Drum failure. Ford needs to take responsibility for their problematic design in these vehicles.
Official record ID (ODI): 11739013. This page is the human-readable source link used across afterwarranty. The raw JSON link proxies NHTSA's public API for machine verification; prefer this page when reading the complaint.