2017 Blue Bird Vision TSBs

sensor replacement parts are not available. This provides a temporary ECM calibration that inhibits engine warning messages for communication errors with the DEF sensor allowing continued operation without engine derate. Regulators are allowing for this temporary calibration to be loaded in the engine ECM by a Cummins authorized repair location if the DEF sensor fails. This temporary calibration does not repair the failure therefore a final repair must be performed and the original calibration be re-installed. Field Service has been requesting an ECM image be uploaded within the support ticket as part of the diagnostics and is carried over into Service Update 2201 (SU2201). In order to receive an authorization code and utilize Cummins TRP2484, you must follow the process, as outlined in SU2201. The specific component affected is Assembly Code: 35-300 Emissions Components.

update improvement to reduce occurrence of Engine fault codes 3555 and 3556 on Cummins diesel engines with the following base ECM calibrations, "HC80145 thru HC80250 and HB80104 thru HC80195"

to include additional new fault codes for all applicable system types (brake, engine, and transmission). Also, "Powertrain, Ford" has been added to the drop-down tab as a system type selection. "Powertrain Ford" system type is used to identify both Ford engine and transmission fault codes.

Also listed is a new Ametek gateway module and applicable software. New Ametek gateway module is only applicable to the Ford Gasoline Vision. Revisions have been made to Ametek instrument cluster software that improve or addresses items noted below. Improved fuel level dampening (only affects diesel fuel systems) Average fuel economy not displaying accurately (only affects diesel fuel systems) High or fast idle set up process on service part replacements (only affects service mode set up) Park brake indicator flashes and audible beep sounds when multiplex module goes in sleep mode (only affects certain Actia to Ametek service part replacements)

2015-2019 Vision School Buses manufactured from July 18, 2014, through July 19, 2017, and certain model year 2018-2019 All American School Buses manufactured from November 28, 2016, through July 25, 2017. On the subject buses, C. E. White Company, a Subsidiary of Hickory Springs Manufacturing Company (HSM), has determined that a defect which relates to motor vehicle safety potentially exists in QS11 Convertible School Bus Seats.

of single strand failing, leading to multiple stands, and eventually belt failure. The belt composition is not ideal for the life cycle of the bus. This Service Bulletin will provide owners with a one-time new replacement belt with the more durable material that is currently being used in production and for service. This Service Bulletin is for part cost coverage only. No labor reimbursement will be provided. Affected Units: Blue Bird Body Company is voluntarily issuing a service bulletin for the following: o Certain model year 2013 through 2022 Blue Bird Vision School Buses omanufactured from January 10, 2012 through February 26, 2021 o Certain model year 2013 through 2022 Blue Bird Vision Non-School Buses omanufactured from November 20, 2012 through November 19, 2020 Repair Parts: The Parts List outlined in the S21AZ Instructions details the part required to perform Service Bulletin S19AZ and should be ordered through Blue Bird Service Parts. The belt is based on the engine generation. Parts are currently available. Time Allowance: No labor will be provided to replace the belt with a more durable material belt, per the published Service Bulletin instructions.

To correct this it is necessary to replace both existing rear axle flange gaskets with new gaskets.

2016 and certain model year 2015-2017 Vision and All American Non-School Buses manufactured from July 20, 2014 through May 21, 2016 equipped with optional Air Disc Brakes will require replacement of both existing rear axle shaft flange gasket with a new gasket. The new rear axle shaft flange gasket reduces the possibility for oil leaking between the axle shaft and hub. Note: Service Bulletin Campaign S16YU replaces S16YN.

This is being done as a product upgrade and to increase customer satisfaction. Blue Bird will be updating all Gen3 Propane buses with the improved Gen4 roller finger follower (RFF). The new Gen4 RFF improves oil jet velocity for the RFF roller bearing element and camshaft interface.

The customer communication requested return of unsold inventory to inspect the sealing. The injector sealing may have an issue which will cause a slow leak. A slow leak of the DEF Injector can lead to crystal formation which can cause aftertreatment related fault codes and ECU driven engine derating.

These codes indicate either a problem with the aftertreatment battery power/ground circuits, the proprietary data link circuits, or one of the components connected to the proprietary data link. Both Cummins and Blue Bird harnesses include the proprietary data link circuits, and power/ground circuits. Blue Bird harnesses include the aftertreatment powerground circuits, and the proprietary data link circuits on the OEM side of the 14-pin crossover connector that plugs to the Cummins engine harness. The Blue Bird supplied circuits go from the 14 pin OEM crossover connector to the SCR sensor table, DPF sensor table, and the DEF tank sensor. Proprietary data link circuits DO NOT go the the diagnostic port connector located inside the cab of the bus.

optional fuel door interlock switch, manufactured from June 11, 2016, through April 07, 2018, will require the unused "optional" fuel door connector C212 terminal contacts be cleaned and installation of a sealed mating connector to prevent any future corrosion. Affected Units: The buses in your fleet that are affected by this Service Bulletin S19ZD are identified by Blue Bird Body Serial Number(s) on the enclosed cover sheet. Service Bulletin S19ZD will be mailed to all owners on record. Be sure to review your list and advise of any incorrect owner names and/or addresses. On the subject buses, the possibility exists for an engine No Crank condition. To correct this, it is necessary to clean the connector terminal contacts and install a sealed mating connector. Parts should be ordered through Blue Bird Service Parts to install the sealed mating connector. Repair Parts: The Parts List outlined in the S19ZD Instructions details the parts required to perform Service Bulletin S19ZD and should be ordered through Blue Bird Service Parts. Parts are anticipated to be available on or before June 24th. Time Allowance: Time allowed to clean the connector terminal contacts and install a sealed mating connector is 0.2 (12 minutes).

calibration update.

School Buses manufactured from November 15, 2013 through August 3, 2016 and certain model year 2015-2017 Vision and All American Non-School Buses manufactured from July 20, 2014 through May 21, 2016 equipped with optional Air Disc Brakes will require replacement of both existing rear axle shaft flange gasket with a new gasket. The new rear axle shaft flange gasket reduces the possibility for oil leaking between the axle shaft and hub. Note: Service Bulletin Campaign S16YU replaces S16YN.

Drivers and Service manuals list either 5W-20 or 5W-30 Engine Oil Requirements. At your next and all subsequent oil changes, Blue Bird recommends only the use of 5W-30 motor oil. All oils used must have the API certification mark. The current oil fill cap is labeled 5W-20. Install a new oil fill cap labeled 5W-30.

Bird Visions and All Americans School and Non-School units equipped with optional Air Disc Brakes manufactured from November 15, 2013, through February 17, 2016, will require replacement of the existing rear axle flange nuts with a new non-locking nut and star washer. The new rear axle shaft nuts reduces the possibility for oil leaking between the axle shaft and hub.

school and non-school buses manufactured from June 5, 2010 through December 8, 2015, and equipped with optional Cummins diesel engines may experience failure of the 5.50? rear engine exhaust support cables. Instructions are provided for Service Bulletin S16YJ, Rear Engine Exhaust Cables.

with New 2016 Cummins ISB and ISL engine features use 250k and 500k J1939 datalink circuits, and have a Type 2 (Green Diagnostic Port Connector). Date Range: January 18, 2016 - Forward

Crossed and/or rubbing fuel

manufactured from February 11, 2016, through August 22, 2016, and one model year 2017 All American Non- School Bus manufactured May 23, 2016, equipped with optional Coated Fuel Tanks will require the coating to be removed from the Certification label on the bottom of the fuel tank. On the subject buses, the Certification label on the bottom of the fuel tank may be covered by an applied coating. To correct, coating must be removed from the label.

optional Side Emergency Doors manufactured from October 21, 2014, through July 14, 2016, will require inspection of the heater pipe installation at the side emergency door.

Floor covering material may not be trimmed properly forcing heater pipe to be too high.

Emergency Doors manufactured from February 26, 2015 - May 4, 2016, will require inspection of the heater pipe installation at the side emergency door. On the subject buses, the floor covering material may not be trimmed properly forcing the heater pipe to be too high raising the temperature of the heater pipe cover. To correct this it is necessary to inspect for proper installation and trim the rubber floor covering, if needed. Time allowed for inspection and correction in each bus is 0.5 hours.

and Non- School Buses equipped with optional Side Emergency Doors manufactured from October 21, 2014, through July 14, 2016, will require inspection of the heater pipe installation at the side emergency door.

service of the Blue Bird products. These troubleshooting guides are available on the Vantage website.

The new cluster will be in full production beginning June 5, 2017. During the time between now and June 5, 2017 Blue Bird will be building some pilot units with the new cluster. Until full implementation Feature 40280 -14 will be added to pilot units. The new Ametek instrument clusters will also be used as a direct service part replacement for older Actia instrument clusters.

Powertrain Control Module (PCM) modification remotely at the dealer service center location. This modification will be done using the Roush Diagnostic Tool (RDT). The RDT software version 10.04.0011 or higher is required.

allow the battery box to separate from the chassis and fall.

separate from the chassis and fall.

The chassis mounted battery box support bracket(s) on certain Vision buses may develop cracks or fracture and could allow the battery box to separate from the chassis and fall. The design of the existing battery box support brackets may not be adequate in certain applications. If both the battery box support brackets were to completely fail and detach from the bus, it could become a road hazard increasing the risk of a crash. Buses should be corrected immediately according to the instructions for Recall R17YY. Dealers should inspect for loose or missing fasteners and cracks at the bolt holes and the bend radius. Repair according to the matrix in the instructions. Repairs include removing braces on all units, adding reinforcements or replacing front and rear brackets on some units with new higher strength steel, based on the matrix in the instructions. Parts are expected to be available the end of April, initially in limited quantities, at no cost to you.

Additionally, the wiring harness (PN 10023917) connected to the relay base should be inspected for any sign of damage and replaced, if necessary. Blue Bird will provide parts at no cost and will reimburse the repair time in accordance with the information presented below. Affected Units: This service bulletin includes: Certain model year 2015-2021 Vision School Buses manufactured from August 5, 2014 through September 11, 2019. Certain model year 2016-2021 All American School Buses manufactured from May 8, 2015 through September 8, 2019. Certain model year 2016-2021 Vision Non-school Buses manufactured November 20, 2014 through August 10, 2019. Certain model year 2015-2020 All American Non-school Buses manufactured September 15, 2014 through September 7, 2019. A separate printout is included which lists all of your buses that are affected by this service bulletin

information for buses equipped with new Diesel Exhaust Fluid (DEF) tank assemblies. Blue Bird buses equipped with new (DEF) tank assemblies have a Gen 5 Tri-Function Sensor. The Gen 5 Tri-Function Sensor provides the level, concentration, and temperature of the (DEF) Diesel Exhaust Fluid in the reservoir and returns a defined CAN message for these values. The sensor and controller communicates on a ?Private? J1939 data link with the Cummins ECM.

for technical bus support requests.

cable in the event a repair involved removal or disconnecting the shift selector at the transmission or shifter on BBCV?s equipped with a Ford 6R140 Transmission.

Buses were built buses with ACTIA instrument clusters from the 2011 year model until the 2018 year models. Note we replaced ACTIA with a new supplier AMETEK. AMETEK instrument clusters implemented 06/05/2017 with feature 40280-14.