High Voltage Battery Junction Box power loss
POWER TRAIN, ELECTRICAL SYSTEM
24 NHTSA complaints · 2022-07 → 2026-06
“On 6/4, I completed a long road trip of over 650 miles. When I got back into my vehicle to move it to where it would be parked for the night, it displayed messages for a Powertrain Malfunction/Reduced Power and a High Voltage Battery Warning. I powered the car off and back…”
“I have a 2022 Mustang Mach-E GT and have now experienced two (2) High Voltage Battery Junction Box (HVJB) failures. First failure was in July 2023 when the vehicle had approximately 12,000 miles. I received the stop safely now message. Vehicle codes displayed via the Ford app…”
“I was driving on the freeway when out of nowhere the vehicle alerted me to "Stop safely now". I no longer had any power and could not accelerate. I was doing 70 MPG in the middle lane and had to switch to the right lane, then to the shoulder of a busy interstate. This was extremely…”

