Jun 7, 2026Transmission & drivetrainElectrical system
Ford Fusion energi battery failure. Dealership wouldn't inspect the battery and kept replacing the battery control module. The replacement part kept failing under warranty and then the dealership quoted me $20,000 for the hybrid battery. They have replaced the BCM twice and error code P0dc9 keeps appearing. The EV range drops to zero randomly or gains range while parked and not plugged in. Dealership doesn't know what's happening even after paying money for diagnostics.
NHTSA ODI 11742569
Apr 17, 2026Transmission & drivetrain
I routinely have plugged in my PHEV, enjoying the quiet electric ride. I could complete a day's commute with the electric charge. However, the battery capacity was significantly reduced at about 50K miles. At about 73K miles, within a couple miles of starting to drive, the car would decelerate and go into 'limp mode', with a top speed of 35MPH. A warning signal of a wrench would appear, indicating a power train fault. While diagnostics at the dealer didn't detect a cause, an emissions test required by the State of Colorado found an 'unstable Hybrid Battery A voltage'. I replaced the spark plugs as recommended by the dealer, but that didn't address the problem. The diagnostics and repair cost about $1000.00
NHTSA ODI 11731934