DETROIT -- Ford Motor Co. on Thursday issued four recalls covering about 143,000 vehicles in North America.
The largest is for roughly 141,000 2015-17 F-150 Crew Cab pickups and 2017 F-250 and F-350 Super Duty Crew Cab pickups.
Those vehicles may have a faulty left rear inflatable seat belt assembly because of inadequate rivet head thickness, which could cause separation of the left rear inflatable seat belt buckle from its mounting bracket during a crash.
Affected F-150s were built from July 20, 2015, to June 16, 2017, at the Dearborn Assembly Plant. Affected F-250s and F-350s were made from Oct. 20, 2015, to June 16, 2017, at the Kentucky Truck Plant.
Also being recalled:
— 935 2017 F-150s and Mustangs because of faulty ARC passenger airbag inflators installed in Takata airbags. The troubled supplier notified Ford of an abnormal deployment during testing. The affected ARC inflators may rupture during a front passenger airbag deployment, sending metal fragments flying toward the passenger.
Affected F-150s were built from July 20 to Aug. 1 at the Kansas City Assembly Plant. Affected Mustangs were built from July 20 to Aug. 1 at the Flat Rock Assembly Plant.
— 835 2017 Ford Focus sedans to inspect and replace faulty second-row left-side seatback frames. Affected vehicles could have inadequate weld penetration between the outboard pivot bracket and the pivot nut joint, which could lead to reduced strength and a higher likelihood of injury during a crash.
The vehicles were built June 7-12 at the Michigan Assembly Plant.
— 263 2017 Explorer, Taurus and Police Interceptor sedans and utilities with incorrect steering gear heat shield fasteners. Affected parts may have insufficient corrosion protection, which could lead to the heat shield corroding and detaching from the steering gear, which would expose the steering gear to higher-than-normal temperatures. That could lead to the sudden loss of power steering assist.
The vehicles were built May 7-10 at the Chicago Assembly Plant.
Ford said it is unaware of any accidents or injuries related to any of the four recalls.