A rollaway risk is certainly a serious issue.
Risk of rolling away is becoming a popular new defect with automakers these days. Ford has announced a new recall on 2018 F-150s, F-650s, F-750s, and Expeditions for an issue which can lead to them rolling away after being placed inpark. According to the company, a clip that locks the gear shift cable to the transmission may not be fully seated on affected vehicles, which can lead to a mismatch between what gear the truck is in and what's being indicated by the readout in the cab.
This can lead to operators believing their vehicle is inparkwhen really, it's not. Because of the defect, the truck also doesn't give warning that it's transmission isn't inpark, whereas normally there's achimeor a text warning displayed on the instrument cluster. Affected F-150s and Expeditions house Ford's new 10-speed automatic transmission, while the F-650 and F-750 use the company's tried and true six-speed automatic. The company says it is aware of only one reported accident and injury related to the issue. The recall involves 347,425 vehicles in North America with the majority located in the United States.
Ford also announced a second, albeit much smaller recall to fix rollaway concerns. Approximately 161 vehicles equipped with 10-speed automatics are being called back for a missing roll pin that attaches the park pawl rod guide cup to the transmission case. Like the shift cable recall, the missing pin can lead to a situation where the driver thinks the vehicle is in park when it's actually still in gear, allowing it to roll away once the driver has exited. Ford is not aware of accidents or injuries related to this smaller issue. In both cases, dealers will be tasked with making the repair, free of charge.