On certain F-150 Lightning (electric) trucks, the electronic cabin coolant heater may not have been manufactured correctly. As a result, you may experience reduced cabin heat, and the windshield defrost system may not work properly.
A windshield defroster that doesn't work may cause reduced visibility and increase the risk of a crash.
Ford will notify owners by mail and advise you to take your vehicle to a dealership to replace the electronic cabin coolant heater.