Electrical system: alternator/generator/regulator (MCI)
Vehicle recall 11V-548. NHTSA received MOTOR COACH INDUSTRIES, INC’s report on Nov 10, 2011.
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The short answer
NHTSA received MOTOR COACH INDUSTRIES, INC’s report on Nov 10, 2011. Copied from NHTSA on Oct 20, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
THIS CORROSION MAY CREATE A SHORT CIRCUIT BETWEEN THE POWER STUD AND THE ALTERNATOR BODY, WHICH IN TURN COULD RESULT IN BURNING OF THE POWER STUD OR THE POWER CABLE END. THIS COULD INCREASE THE RISK OF A FIRE. ADDITIONALLY, THE VEHICLE BATTERY COULD DISCHARGE WHICH COULD CAUSE THE VEHICLE TO STALL.
MOTOR COACH INDUSTRIES (MCI) IS RECALLING CERTAIN MODEL YEAR 2010-2011 D4505 MOTOR COACHES MANUFACTURED FROM MAY 1, 2010, THROUGH SEPTEMBER 30, 2011.
THESE VEHICLES WERE EQUIPPED WITH PENNTEX ALTERNATORS THAT, AS INSTALLED, MAY COLLECT MOISTURE AT THE POWER STUD.
THIS MOISTURE MAY RESULT IN CORROSION BUILDUP AT AND AROUND THE POWER STUD BASE.
NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Electrical system: alternator/generator/regulator.
What should you do?
MCI WILL INSPECT AND MODIFY THE ALTERNATOR INSTALLATION FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 30, 2011. OWNERS MAY CONTACT MCI CUSTOMER SERVICE AT 1-800-241-2947.
NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.
- How to reach the firm: MCI’S SAFETY RECALL NUMBER IS 373.OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 112 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.
- MCI D4505and 2010 and 2011, before the model years listed here
Who is recalling it?
- Made by MOTOR COACH INDUSTRIES, INC.
NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 20, 2026 and checked Oct 20, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 20, 2026.