Key Takeaway
Overvoltage Alternator May Cause Engine Shutdown by Motor Coach Industries was recalled on June 15, 2020. What to do: MCI will notify the affected owners, and dealers will install a new application code in the Parker VMM multiplex modules increasing the overvoltage th...
Overvoltage Alternator May Cause Engine Shutdown
Description
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.
Injuries / Consequence
If the engine shuts down or loses power while the vehicle is in motion, this may increase the risk of a crash.
Remedy
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.
Products Affected
Vehicle
VehiclesCompany Information
Motor Coach Industries
Unknown location
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Frequently Asked Questions
Is this recall still active?
Check the status badge at the top of this page. "Ongoing" means the recall is still active and you should follow the remedy instructions. "Completed" or "Terminated" means the recall process has concluded, though the safety issue remains relevant for any unrepaired products.
How do I check if my product is affected?
Compare the model number, lot code, serial number, or date range listed in the recall notice with the information on your product's label or packaging. For vehicles, check your VIN at NHTSA.gov/Recalls.
What remedy is available for this recall?
The listed remedy for this recall is: 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 J...
Where can I find the original recall notice?
This recall was issued by NHTSA. You can view the original notice using the link provided above.