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Service bulletins for the 2012 New Flyer Xcelsior

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.

33 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
TSIB 26-062026-05-14. Service bulletin. ELECTRICAL SYSTEM. Bulletin to follow when replacing LV batteries on buses equipped with certain Vanner battery equalizers.
SMB1942021-06-03. Service bulletin. SUSPENSION. This service manual bulletin is an update to the 6,000 mile Preventative Maintenance inspection and lubrication requirements for the front stabilizer bar on all Xcelsior model buses.
SMB1952021-05-06. Service bulletin. ELECTRICAL SYSTEM. This Service Manual Bulletin provides additional information regarding the 6,000 mile Preventative Maintenance requirements for the low voltage battery system.
SMB1792019-05-01. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, AIR; SERVICE BRAKES, HYDRAULIC. Service Manual Bulletin - revised troubleshooting charts for MGM E-Stroke brake monitoring system
SMB1782018-02-12. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Service Manual Bulletin provides new OEM (Kongsberg) PM inspection requirements and new installation procedure for the adjustable floor pedal moveable arm on specifically equipped vehicles.
PMB0492018-02-12. Service bulletin. EQUIPMENT. This Parts Manual Bulletin provides new part number information for the moveable arm kit for the Kongsberg brake and accelerator assembly on specifically equipped vehicles.
SMB1722017-09-14. Service bulletin. SUSPENSION:FRONT. This Service Bulletin Provides Preventative Maintenance Information on the Stabilizer Bar (if installed) Located on the Front Suspension
TSIB-17-012017-09-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Technical Service Information Bulletin Describes the Recommended Maintenance for Flexible Coolant Hoses Located Above the Electronic Equipment Enclosure on Xcelsior Model Vehicles Equipped with Rooftop HVAC Sytems.
PMB-0402017-08-04. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Parts Manual Bulletin - Rear Axle Housing Oil Filter
SMB1222017-08-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Manual Bulletin - Rear Axle Housing Oil Filter.
PMB-0402017-08-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Parts Manual Bulletin - Rear Axle Housing Oil Filter.
SMB121_B2017-08-04. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:MECHANICAL. Service Manual Bulletin - Maintenance - Front & Rear Axle Fastener Replacements
ITS50182017-08-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Technical Instruction to Clean Intake Tubes and Add Secondary Filter.
SMB1382017-08-04. Service bulletin. EQUIPMENT; STEERING. Service Manual Bulletin - Steering Stop Adjustment
PMB-0392017-08-04. Service bulletin. EQUIPMENT. Parts Manual Bulletin - Air Cleaner Assembly
SMB1212017-08-04. Service bulletin. SUSPENSION:REAR; EQUIPMENT; SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. Service Manual Bulletin - Front and Rear Axle Fastener Replacements.
TSIB 15-01_B2017-08-04. Service bulletin. STEERING; EQUIPMENT ADAPTIVE/MOBILITY. Technical Service Information Bulletin - Steering Damper Mount Inspection
SMB1512017-03-20. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. SERVICE MANUAL BULLETIN - FRONT & REAR DISC BRAKE INSTALLATION.
PMB-0442017-03-20. Service bulletin. EQUIPMENT. SERVICE MANUAL BULLETIN - TOOLS & TESTING EQUIPMENT – ARTICULATED JOINT.
SMB1492017-03-20. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SUSPENSION:FRONT:WHEEL BEARING. SERVICE MANUAL BULLETIN - MAN AXLE FRONT & REAR WHEEL BEARING INSPECTION.
SMB1502017-03-17. Service bulletin. SUSPENSION; STEERING. SERVICE MANUAL BULLETIN - MAN VOK-07 AXLES TIE ROD ARMS & STEERING ARM INSTALLATION
SMB1472017-03-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; SUSPENSION. SERVICE MANUAL BULLETIN - PREVENTIVE MAINTENANCE - EMP RADIATOR.
SMB1452017-03-17. Service bulletin. SUSPENSION. PARTS MANUAL BULLETIN - WHEEL FLANGE INSTALLATION & RADIUS ROD INSTALLATION.
SMB-1462017-03-17. Service bulletin. ENGINE. PARTS MANUAL BULLETIN - DEF TANK DRAIN PLUG.
SMB1592016-10-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. SERVICE MANUAL BULLETIN PROVIDES A PROCEDURE FOR TESTING THE COOLING SYSTEM FOR LEAKS ON SPECIFICALLY EQUIPPED XCELSIOR MODEL VEHICLES.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.