Recalling a model as prolific as the Ford F-150 is no simple matter. Just take this latest campaign, for example, which involves over 1.3 million vehicles.

The problem comes down to a side door which may not open or close properly – because either the latch is frozen or the actuation cable is kinked or bent.

Not being able to open the door would be annoying enough, but if it seems to be closed and isn’t actually latched, it could open while the vehicle’s in motion. And that could be very bad news indeed.

The fix appears to be as simple as adding a water shield to the door latch (and replacing the actuation cables where necessary). But with so many vehicles affected, it’ll likely take a while to get them all fixed.

The recall affects 2015-17 F-150s built in Dearborn (between March 12, 2014, and December 31, 2016) or Kansas City (Aug 11, 2014, through December 30, 2016), as well as 2017 Super Duty pickups assembled in Kentucky (from October 8, 2015, to September 1, 2016).

All told, that comes to 1,344,605 vehicles across North America: 1,101,107 of which are estimated to be in the United States, with another 222,408 in Canada, and 21,090 in Mexico.

In the past couple of weeks, Ford issued three additional (but much smaller) recalls for F-Series pickups. 504 trucks (across the F-150, F-250, F-350, F-450, and F-550 models) need to have their front passenger seat tracks replaced. Another 39 examples of the 2018 Raptor Super Cab (w/o moonroofs) need to have their roof braces riveted. And another 77 examples of the 2015 F-650 and F-750 need to have their steering axles tightened.

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