Ford is recalling nearly 149,000 Mustangs because a small wiring problem can trigger a surprisingly wide range of failures. The issue affects current-generation cars from the 2024 through 2026 model years.
At the center of the recall are ground terminals in the engine-compartment wiring harness. If one of those connections fractures, the Mustang can lose drive power or several important electrical functions.
According to a recall filing submitted to the National Highway Traffic Safety Administration, the campaign covers 148,663 vehicles built between September 7, 2022, and June 9, 2026. Ford estimates that about 1 percent of the recalled population may actually contain the defect.
The consequences depend on which ground connection fails, and potential problems include loss of engine power, one or both headlights, the windshield washer pump, air conditioning, or the engine cooling fan.
The Problem Comes Down To A Ground Eyelet
Ford says adhesive from heat-shrink material can intrude into the bolt-clearance area of a ground eyelet during production. That interference can bend the eyelet during assembly, reducing its resistance to fatigue caused by normal vehicle vibration.
Over time, the weakened terminal can fracture. Depending on the location of the failed connection, drivers may see a check engine light, warning messages in the instrument cluster, or hear an audible chime before other symptoms appear.
The recall also involves compliance with federal standards governing lighting equipment and windshield washing systems. NHTSA notes that losing motive power while driving, a headlamp, or the washer system can all increase crash risk.
Ford Found The Issue During Durability Testing
The problem came to Ford’s attention on June 4, 2026, after two ground eyelets broke on a 2027 Mustang durability-test vehicle. That failure caused a loss of motive power and prompted engineers to investigate whether production cars could have the same condition.
Ford issued a stop-ship order for 2026 Mustangs that same day. By August 4, the company had identified eight related warranty claims, including four involving vehicles with less than three months of service.
Ford says it is not aware of any crashes or injuries connected to the defect. The company’s Field Review Committee approved the recall on August 18.
Dealers Will Replace Four Ground Terminals
The repair calls for Ford or Lincoln dealers to replace all four affected engine-compartment ground terminals with redesigned parts. The revised terminals use a stepped-neck design intended to eliminate the interference and bending stress that contributed to the failures.
The work will be performed free of charge. Interim owner notifications were scheduled to begin August 31, while final remedy letters are expected during the first quarter of 2027.
Ford’s internal recall number is 26C40, while NHTSA lists the campaign as 26V547. Owners can already check affected VINs through NHTSA’s recall database.