Motor Coach Industries | NHTSA Recall #20V352000
Vehicle safety recall details from the Department of Transportation.
Description
Detailed recall information for NHTSA ID 20V352000 by Motor Coach Industries. Affecting 2018-2020 d4000, d4005, d4500, d4505 and d45crtle buses manufactured with electric cooling fans (e-fan) for the radiator and charge air cooler, borg warner 55si model dual alternator configuration (with a sense stud and wire), and parker vansco multiplexing module (vmm) multiplex system Includes 1,067 affected units, Overvoltage Alternator May Cause Engine Shutdown, component: ELECTRICAL SYSTEM, and more from the Department of Transportation.
Vehicle Make / Model
makesAndModels2018-2020 d4000, d4005, d4500, d4505 and d45crtle buses manufactured with electric cooling fans (e-fan) for the radiator and charge air cooler, borg warner 55si model dual alternator configuration (with a sense stud and wire), and parker vansco multiplexing module (vmm) multiplex system
Defect Summary
Motor coach industries (mci) is recalling certain 2018-2020 d4000, d4005, d4500, d4505 and d45crtle buses manufactured with electric cooling fans (e-fan) for the radiator and charge air cooler, borg warner 55si model dual alternator configuration (with a sense stud and wire), and parker vansco multiplexing module (vmm) multiplex system. a build-up of debris, corrosion, and/or water flow could cause a high resistance path to ground for the sense stud on the back of the alternator and cause the alternator to produce excessive voltage output, which may exceed the threshold limit currently programmed in the vmm and result in a loss of engine power and vehicle shutdown.
Corrective Action
Mci will notify the affected owners, and dealers will install a new application code in the parker vmm multiplex modules increasing the overvoltage threshold limit, free of charge. the recall began july 23, 2020. owners may contact mci customer service at 1-800-241-2947. mci's number for this recall is sb 479.