The main power wire to the relay box may have a loose connection. This could cause the wire to overheat or melt, and result in a loss of electrical power to the vehicle.
The company will notify owners by mail and instruct them to take their vehicle to an authorized service center to inspect the main power wire bolt. If excess insulation is found, it will be trimmed and the bolt will be properly tightened. If the wire harness and/or relay box are damaged, they will be repaired or replaced.