Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSIB 26-07
Service Bulletin/Repair Instructions
This bulletin is to provide instructions for clearing DTC 1067 FMI 7 (Pressure Sensor Not Calibrated) and FMI 11 (Primary and Secondary Circuit Pressure Sensor (PS1/PS2) Plausibility Error - BS Pressure), when required to prevent the loss of Adaptive Cruise Control functionality and the illumination of a warning indicator.
TSIB 26-01
Service Bulletin/Repair Instructions
This TSIB provides information to provide a software update. Some coaches using MCC HVAC Eco-Tempo ECU # 07-10-009 software T35-1581 / V1.04 may be experiencing random fault codes due to MCC software errors.
ITS61078
Service Bulletin/Repair Instructions
Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 22inch DEF tank
TSIB 26-04
Service Bulletin/Repair Instructions
This TSIB is to inform customers the recommended steering axle cleaning/greasing instructions to prevent damage on axle components due to displacement of grease from the bearings, lubrication reduction and accelerate wear for coaches with independent front suspension.
ITS61475
Service Bulletin/Repair Instructions
Instructions to download BCC program (T35-1581) V4.06. This program will allow the Eco-Temp system to properly log A17 code for low suction pressure.
ITS61191
Service Bulletin/Repair Instructions
Instructions for relocating the idler pulley and adding a longer belt to improve reliability.
ITS61237
Service Bulletin/Repair Instructions
Instructions outlining the steps to replace the existing harness with mini fuses to a more robust design and heavier duty fuses.
TSIB 24-03
Service Bulletin/Repair Instructions
Information to owners showing the proper procedure for checking the oil level in a BITZER HVAC compressor.
TSIB 24-05
Service Bulletin/Repair Instructions
Service Bulletin issued to relocate the alternator belt idler pulley and change the belt layout for improved performance.
TSIB 22-04
Service Bulletin/Repair Instructions
Instructions to improve sealing in the front junction box.
TSIB 22-12
Service Bulletin/Repair Instructions
MCI has released Technical Service Information Bulletin (TSIB) 22-12 to address concerns with water ingress in remote switch box. The TSIB provides guidance on how to rework the box to inhibit water intrusion and connector corrosion
TSIB 22-03
Service Bulletin/Repair Instructions
Technical Service Information Bulletin describing the replacement of seating backrest attachment hardware with the addition of a mechanical lock nut on specifically equipped buses manufactured prior to model year 2020.
ITS60421
Service Bulletin/Repair Instructions
This Technical Instruction is a description of the inspections and cleaning procedures being recommended by MCI due to the parts shortages which are impacting the repair inspections associated with NHTSA Recall 21V-748. These are the same instructions as outlined in the previously submitted Technical Services Information Bulletin TSIB 22-01 and Technical Instruction ITS60421, except they are specific to those customers operating in extremely corrosive environments.
TSIB 22-01
Service Bulletin/Repair Instructions
This is an upgrade to Technical Service Information Bulletin TSIB 21-10 issued in January of 2022 which is specific to buses operating in severe duty and or corrosive environments. These bulletins have been issued to recommend interim inspection procedures required every 6000 miles on specifically equipped motor coaches due to global parts shortages and the subsequent delay in available parts to conduct the corrective actions associated with NHTSA Recall 21V-748.
TSIB 21-10
Service Bulletin/Repair Instructions
This Technical Service Information Bulletin describes interim inspection procedures required every 6000 miles on specific motor coaches due to the global parts shortage and subsequent delay in available parts to conduct the corrective actions associated with NHTSA Recall 21V-748. Customers were notified of the recall and recommended to download this inspection document from the MCI website.
TSIB 21-08
Service Bulletin/Repair Instructions
Technical Service Information Bulletin describing an update to the Preventaive Maintenance requirements for specifically equipped motor coaches with Kiel Avane model passenger seats.
TSIB 21-05
Service Bulletin/Repair Instructions
This Technical Sevice Information Bulletion is to advise of a part number supersession of the coolant hump hose, MCI PN 6L-8-353, to MCI PN 06-08-2262.
SB 3146
Service Bulletin/Repair Instructions
This service bulletin outlines the steps to add the secondary air filter. The secondary filter can only be used with primary air filter, MCI P/N: 09-03-1858.
SB 3145
Service Bulletin/Repair Instructions
This Service Bulletin informs affected owners of the steps to remove the unused Saucon provisional connector, MCI P/N 19-11-2941, located in the front junction box on coaches without a Saucon telematics module.
SB 3139
Service Bulletin/Repair Instructions
This Service Bulletin provides a checklist of actions to perform on a daily, weekly and monthly basis for parked coaches before they are considered ready for driving.
SB 3137
Service Bulletin/Repair Instructions
This service bulletin outlines the steps to replace the breather plug with a remote breather on the ZF axle differential to avoid possible breather clogging when the coach drives through mud and water.
SB 3138
Service Bulletin/Repair Instructions
This service bulletin outlines the steps to close the tube openings in the condenser compartment to avoid possible water intrusion into the coach when the condenser compartment is washed.
FCP 475
Service Bulletin/Repair Instructions
This service bulletin advises owners of affected vehicles that the throttle pedal sensors may provide intermittent, erratic data and cause the "engine check" light to become illuminated, and how repairs can be made to correct the vehicles.
FCP 478
Service Bulletin/Repair Instructions
This service bulletin advises owners of affected vehicles that ZF has notified MCI that some brake chambers installed on the ZF drive axle have had water ingress, causing malfunction of the pneumatic brake system and dragging brakes during sub-zero temperatures. The service bulletin advises how owners may have their vehicles repaired.
SB 3132
Service Bulletin/Repair Instructions
This service bulletin outlines the steps to relocate the ambient temperature sensor from the spare tire compartment to the bumperette to improve the accuracy of the sensor reading. This service bulletin needs to be done in conjunction with Service Bulletin 2123.
P09-12
Service Bulletin/Repair Instructions
This Procedure outlines the steps to add a stopper bracket and isolator in the fuel tank compartment to stop the fuel tank from unwanted movement.
FCP 472
Service Bulletin/Repair Instructions
This Service Bulletins informs affected owners of model year 2019 J3500 model coaches and model year 2018-2019 J4500 model coaches have intermittent ESP/ABS plausibility fault codes (SPN 1067) from the Bendix ESP/ABS controller, which results in the loss of adaptive cruise control and a warning light will illuminate.
P03-276
Service Bulletin/Repair Instructions
This Procedure outlines steps to add mechanical fasteners to the dual lock tape retaining the rear window trim panel.
P03-277
Service Bulletin/Repair Instructions
This Procedure outlines the steps to add mechanical fasteners to secure the dual lock tape retaining the lavatory window trim panel.
SB 3128
Service Bulletin/Repair Instructions
This Service Bulletin advises customers facing issues with a low engine oil pan protector profile how to replace it with a new model with higher ground clearance.
SB 3123
Service Bulletin/Repair Instructions
This Service Bulletin informs owners of model year 2018-2020 J3500 and J4500 model coaches of the procedure to insulate the gap in the area between the front cap and under the dash panel on the driver's side, that will help shield the ambient temperature sense or from the air circulating inside the coach.
P08-54
Service Bulletin/Repair Instructions
This Procedure outlines the steps to install a relief valve on the air compressor for coaches equipped with DD13 engines.