Ford Recalls 4.4 Million Vehicles on Trailer Controller Flaw (1)

Ford Motor Co. will recall nearly 4.4 million vehicles including its some of its top-selling F-Series pickup and popular sport utility vehicles in a setback for the company’s push to improve quality.

The callback involves a software glitch that could cause taillights, turn signals and brakes on trailers to lose communication with the towing vehicle and stop working, increasing the risk of a crash, the National Highway Traffic Safety Administration said in a notice about the recall posted Thursday.

“These conditions result in a noncompliance with federal safety standards and can reduce a driver’s ability to control an attached trailer ...