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Service bulletin SB-3029

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10034192
Published by NHTSA2010-10-25
Manufacturer's numberSB-3029
Manufacturer's date2010-03-31
NHTSA componentELECTRICAL SYSTEM:HORN; EQUIPMENT:ELECTRICAL

NHTSA's summary

MCI: CONTROLS ELECTRIC HORN HARNESS. POTENTIAL FOR DELAYED HORN RESPONSE ON D MODEL COACHES EQUIPPED WITH I/O CONTROLS. THE FOLLOWING RETROFIT PROCEDURE IS APPLICABLE TO D SERIES COACHES EQUIPPED WITH I/O CONTROLS BETWEEN THE RANGE OF, AND INCLUDING, UNIT NUMBERS 55951 TO 55958 AND 56167 TO 59340. NO MODEL YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Equipment and accessories

Vehicles listed
MCI D SERIES1998

Listing a model year does not mean every vehicle of it is concerned: the document says which.