The 2018 Ford F-650 SD has 5 recalls, the most serious being a brake fluid leak from corroding brake line fittings and a gear shift indicator that can show "Park" while the transmission is actually in a different gear.
On the brake side, hose assemblies between the master cylinder and the hydraulic control unit may be missing their anti-corrosion coating on the coupling fittings, causing them to corrode prematurely and leak brake fluid, which reduces stopping power. A separate parking brake issue compounds this: the parking brake cable may not have been adjusted correctly, meaning the brake may not hold the vehicle in place when the transmission has no Park position or the lever is left out of Park, leaving the truck free to roll. The gear shift concern involves a cable clip that can pop out of place, causing the shift lever to read "Park" on the display when the transmission is actually in another gear, so a driver who walks away thinking the truck is secured may return to find it has moved.
Two recalls cover brake lights on certain emergency vehicle and ambulance builds on this chassis. In both cases, the Whelen brake lights used by the upfitter can illuminate even when the driver's foot is not on the brake pedal, which can confuse following drivers who may brake unnecessarily or fail to anticipate the truck's actual speed. These brake light recalls apply specifically to vehicles that were converted by specialty upfitters into emergency or ambulance configurations, not standard truck builds.