2021 Ford Mustang Reliability Report

This catch-all group mixes several problems. Rear camera failures come up most. The image goes blank or blue, or the infotainment screen freezes at startup, and dealers swap the camera, wiring and module more than once. Other reports repeat problems from other categories: "Stop Safely Now" shutdowns, high-voltage warnings as early as 600 miles, front camera faults, and erratic acceleration. Single reports cover a manual car revving when the brake is released, cracked door hinge welds, and dealers unable to do the windshield and glass roof recalls. One crash is blamed on failed lane and blind spot assists.

The steering wheel shakes and the brakes pulse when stopping from 40 to 50 mph. Dealers trace this to warped rotors and worn pads and replace them again and again. Ford calls it wear and tear, so later repairs, quoted at $1300, can fall on the owner. Other reports describe front brakes grabbing at low speed, one-pedal drive switching off after the junction box recall, parking brake faults, and loss of power brake assist. Two crash reports, one with an injury, say the car did not slow when the brake pedal was pressed.

Unintended acceleration is the main complaint and accounts for 4 crash reports, one with an injury. The cars surge into a building wall, a house or other vehicles while parking, reversing or sitting at a light. Other reports describe cruise control jumping to a higher speed, the car lurching when one-pedal drive faults out, and drive modes changing on their own after a software update. The front camera fault also shows up here. When it hits, adaptive cruise and lane centering disengage, sometimes with hard braking at highway speed.

Most filings here describe failures of the high-voltage battery junction box. Propulsion cuts out at highway speed and takes power steering and power brakes with it. Cars also fail to start or lock owners out after fast charging. Several reports cite recall 22S41 and argue that the software fix does not repair contactor damage that has already happened. Other reports describe the wheel veering right at highway speed, which caused one crash with an injury. Steering oscillation, violent wheel vibration from warped rotors, and erratic BlueCruise behavior also appear.

Most reports involve windshield recall 21V711000, sometimes along with 21V712000, and describe no actual failure. Parts are not available, dealers refuse or delay the work, or owners are told to pay for windshield work first. One owner found water on the driver's seat from poor windshield adhesion at about 44,000 miles. Reports on the gas Mustang include convertible rear windows that fail to close and a rear-view mirror that vibrates above 50 mph. One door fault produced smoke from the window.

After a short stop, the car will not start or shift out of park, shows "Stop Safely Now," and has to be towed. Dealers trace this to the high-voltage battery junction box or the battery energy control module. Some cars had recall 22S41 done before the failure. Other reports say recall 22V412 work was blocked by a module shortage or halted by Ford. One gas Mustang stalled at highway speed and set low fuel pressure codes. One crash involved unintended acceleration while parking in a garage.

The front trunk hood latch fails. The hood stops halfway open and can neither be opened nor relatched, so owners drive with it ajar until a dealer replaces the latch, striker and actuator. One report worries that the frunk's emergency release also fails. Other single reports describe a jamming door lock that complicated repairs after a crash with an injury and was later covered by a recall, and a rear hatch that sat misaligned at about 800 miles, which the dealer said had no fix.