Vehicle report
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.
S26DZ
The mechanical brake switch & bracket design has a potential for cumulative at-limit stack up clearances to exceed the limitations of the mechanical switch. As a result, a preventative maintenance adjustment procedure is necessary and, at times, settings can be difficult to achieve.
SU2201
Cummins recently issued Temporary Repair Practice (TRP2484) for certain vehicles with DEF sensor failures in which DEF 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.
S21AZ
Overview: Certain 2013 through 2022 model year Blue Bird Vision School and Non-School Bus units has experienced signs 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.
SM2001
The intent of Service Memorandum SM2001 is to âÃÂÃÂAnnounce a New Blue Bird Dealer ProcessâÃÂànow available to perform a Ford 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.
SM1906
The intent of Service Memorandum SM1906 is to make Blue Bird dealers aware that Cummins has released a calibration update improvement to reduce occurrence of âEngine fault codes 3555 and 3556â on Cummins diesel engines with the following base ECM calibrations, "HC80145 thru HC80250 and HB80104 thru HC80195"
SM1904
SM1904: New Ametek Parts & Software New Ametek instrument cluster part numbers and software now listed on the Blue Bird Dealer Vantage website. 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)
SM1905
SM1905: Blue Bird Vantage Dash Fault Codes Website Blue Bird Vantage "Dash Fault Codes" website page has been updated 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.
S19AG
Blue Bird has determined that the CIT brand air conditioning relays should be replaced with Song Chuan brand relays (PN 00079077). 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
SM1903
Service Memorandum (SM1903) includes basic troubleshooting steps for Cummins engines with "Aftertreatment Abnormal Update Rate Fault Codes". 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.
S19AB NonSchool
Overview: Service Bulletin S19AB, Separator Clamp Removal on Gasoline with Heat Shield affects certain model year 2020 Visions with a Ford gasoline powertrain and heat shield. To correct this condition, the Dealer is to cut the zip ties and remove the swivel saddle, if the heat shield is installed. Affected Units: On certain 2020 model year Blue Bird Vision School Buses manufactured from October 31, 2018 through March 16, 2019 and certain model year Blue Bird Vision Non-School Buses manufactured from November 15, 2018 through February 7, 2019, the Dealer is to cut zip ties and remove the swivel saddle if heat shield is installed. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19AB will be mailed to all owners on record. Be sure to review your list and advise of any incorrect owner names and/or addresses. Repair Parts: No repair parts are required. Time Allowance: Time allowed to complete the S19AB remedy to cut the zip ties and remove the swivel saddle in each bus is 0.1 hours.
S19AB School Bus
Overview: Service Bulletin S19AB, Separator Clamp Removal on Gasoline with Heat Shield affects certain model year 2020 Visions with a Ford gasoline powertrain and heat shield. To correct this condition, the Dealer is to cut the zip ties and remove the swivel saddle, if the heat shield is installed. Affected Units: On certain 2020 model year Blue Bird Vision School Buses manufactured from October 31, 2018 through March 16, 2019 and certain model year Blue Bird Vision Non-School Buses manufactured from November 15, 2018 through February 7, 2019, the Dealer is to cut zip ties and remove the swivel saddle if heat shield is installed. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19AB will be mailed to all owners on record. Be sure to review your list and advise of any incorrect owner names and/or addresses. Repair Parts: No repair parts are required. Time Allowance: Time allowed to complete the S19AB remedy to cut the zip ties and remove the swivel saddle in each bus is 0.1 hours.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.