The 2015 Ford F-550 SD has 3 recalls, the most serious being a transmission control fault where the gear indicator can show "Drive" while the truck is actually in Reverse, creating a risk of unexpected movement and a crash.
A second transmission-related recall applies only to trucks built with ambulance or fire engine preparation packages: the engine can shut down unexpectedly and require a cool-down period before restarting, which can delay emergency response. On the suspension side, a recall affects F-550s that were modified by Life Line Emergency Vehicles and fitted with Liquid Spring aftermarket suspension kits. The bracket holding the suspension fluid tank to the frame can fracture, allowing the tank to break free from the chassis and drop onto the road as a hazard for other vehicles.