2002 MCI D4000, 2002 MCI D4500 Recall: ON CERTAIN MOTOR COACHES THAT HAVE MULTIPLEX SYSTEMS, WHEN THE COACH'S…
NHTSA campaign 02V103000 · Electrical System · filed Apr 4, 2002 · verified Jul 30, 2026
The defect
ON CERTAIN MOTOR COACHES THAT HAVE MULTIPLEX SYSTEMS, WHEN THE COACH'S DEFROSTER MOTOR IS ACTIVATED, CERTAIN HIGH SPEED CELL NET CONTROLLERS (HCNC) MAY LOCK UP.
The risk
AS A CONSEQUENCE OF THIS LOCK UP, THE FUNCTIONS AND SYSTEMS THAT ARE PART OF THE MULTIPLEX SYSTEM WILL REMAIN AT THEIR STATUS IMMEDIATELY PRIOR TO THE LOCKUP. THIS COULD AFFECT THE ELECTRICAL OPERATION OF BRAKE LIGHTS, TURN SIGNALS, IGNITION, INSTRUMENTATION, ETC.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
OWNERS WILL BE PROVIDED WITH DEFROSTER MOTOR RELAYS EQUIPPED WITH SUPPRESSION RESISTORS AND INSTALLATION INSTRUCTIONS. DEALERS WILL ALSO REPLACE THE HCNC MODULES WITH UPGRADED MODULES. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING APRIL 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MCI AT 1-800-241-2947.
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Affected vehicles
Related recalls
More MCI D4000 recalls
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- 2021 MCI D4000 and 7 other models — Fuel tubes between the fuel rail and the injectors for…
- 2018 MCI D4000 and 8 other models — Main Distribution Panel (MDP) located within the battery…
- 2017–2018 MCI D4000 and 7 other models — Sealing washer may not seat correctly in the pilot bore…
Other campaigns involving MCI vehicles
Source: NHTSA recall database, campaign 02V103000. Data last verified Jul 30, 2026.