Ford Motor Company (NYSE: F) is recalling 2023 F-150 and Ford SD F250, F350, F450, F550, and F600 vehicles. The steering wheel clock spring from supplier BCS Automotive Interface Solutions may have an bad weld, causing a loss of electrical connection to the driver’s frontal air bag. The customer may notice loss of illumination and function of switches on the steering wheel, such as radio controls, inoperative horn and an airbag warning light.

“The Steering Column Control Module (SCCM) in affected vehicles may contain a clock spring assembly with an insufficient weld between the bus bar and the ribbon cable. The ribbon cable provides connectivity to the driver airbag. An insufficient weld can lead to a disconnection of ribbon cable circuits, resulting in a loss of electrical connection to the driver’s front airbag. As a consequence the airbag warning light will illuminate and the driver airbag will not deploy,” Ford said in the required safety defect recall filing to the National Highway Traffic Safety Administration (NHTSA) that has been made public on New Year’s day.

During the sub-supplier’s manufacturing process, clock spring bus bars may have been washed in isopropyl alcohol contaminated with glycerin, which can result in a bad weld between the bus bar and the ribbon cable of the clock spring assembly.