After finding a problem with the vehicles' airbag system, Ford recalled 1.2 million pick-up trucks in the United States on April 14. The company said a wiring fault could cause the airbag warning lamp to turn on and the airbag to deploy.
"We urge all of our customers to seek service immediately for an airbag warning lamp that is illuminated."
The firm said it was not aware of any accidents caused by the fault. "In most cases, the reported deployments have occurred within the first few seconds following vehicle start-up," it said.
The National Highway Traffic Safety Administration welcomed the move. "We are pleased that Ford shares our commitment to safety and is taking action to protect consumers," it said.
Ford stocks fell nearly 2% in the first hours of trade after news of the recall emerged.
Previously, Ford recalled around 144,000 F-150s for the same reason.
Ford has marketed the best-selling F-150 as a tough and reliable choice for work and personal use.