46 Operator’s Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Lighting Check all lights on the vehicle daily for proper function. Replace burned out inserts and bulbs. Replace any broken or cracked side or rear reflectors. Headlights should be checked for aim at least once per year. WARNING Using incorrect bulbs or lamps may result in failures that could lead to a fire or a vehicle accident caused by improper lighting.