MCI recall SB 479

Q: Is SB 479 the same recall as 20V352000?

Yes. SB 479 is MCI’s own number for it; 20V352000 is NHTSA’s. One recall, two references.

MCI calls it SB 479. NHTSA filed it as campaign 20V352000 on Jun 12, 2020: electrical system on the 2018–2020 MCI D4000 and 5 other MCI models, 1,067 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

The full filing, 20V352000 →Check a VIN at NHTSA

What NHTSA has under this number

Source: 49 CFR Part 573 filings

NHTSA campaign	Vehicles	Component	Filed	Affected	Severity
20V352000	2018–2020 MCI D4000 and 5 other MCI models	Electrical System	Jun 12, 2020	1,067	high

Problem 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. Risk If the engine shuts down or loses power while the vehicle is in motion, this may increase the risk of a crash. Fix 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.

The manufacturer’s own words as filed for 20V352000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. SB 479 is the number MCI assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 20V352000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

NHTSA VIN recall lookup →

Common questions

Source: NHTSA, 49 CFR Part 573

Is SB 479 the same recall as 20V352000?

Yes. SB 479 is MCI’s own number for it; 20V352000 is NHTSA’s. One recall, two references.

Which vehicles does SB 479 cover?

2018–2020 MCI D4000 and 5 other MCI models, 1,067 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the SB 479 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.