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.
SM2202
Service Bulletin/Repair Instructions
SM2022 EV Maintenance and Service Documentation This Service Memorandum is to announce information on Cummins Power Electric buses now available at Quickserve Online. Dealer must have access to Quickserve to obtain these service maintenance and repair procedures.
SM2203
Service Bulletin/Repair Instructions
SM2203: EV Recommended Starting Procedure This Service Memorandum is to announce the proper starting procedure to be followed for all Cummins EV powered units. The sequence is required due to multiple electronic modules required to wake up and start communicating over the CAN (Controller Area Network) on EV Power Train Productâ.
SU2201
Service Bulletin/Repair Instructions
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.
SM1906
Service Bulletin/Repair Instructions
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"
SU1901
Service Bulletin/Repair Instructions
Models Affected: 2010 thru 2021 All American Subject: This update provides information on the new surge tank fill necks for All American Instructions: There is a new kit available from Part Sales; 10066291 - Kit, Neck, Surge Tank. This kit is available for use with the All American & TX4 surge tanks. Remove and discard existing neck from tank Install new neck using items in Kit 10066291 Kit, Neck, Surge Tank
SM1904
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
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
Service Bulletin/Repair Instructions
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
S19AC
Service Bulletin/Repair Instructions
Overview Blue Bird has determined that the exhaust muffler hanger rods may not be torqued properly. As part of this service bulletin, it is necessary to check the torque on rods to ensure they are torqued in accordance with the provided instructions. If both exhaust hanger rods torque are correct, no further action is required. In the event that one or both hanger rods are determined to be less than the required installation torque, then the torque application process shall be utilized, per the provided instructions Blue Bird will reimburse the repair time in accordance with the information presented below. Affected Units This service bulletin includes certain 2018 through 2020 Blue Bird All American School Buses manufactured from March 2, 2017 through March 30, 2019. Additionally, this service bulletin includes certain 2018 through 2020 Blue Bird All American Non-school Buses manufactured from March 18, 2017 through February 20, 2019. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19AC 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 parts are required for this service bulletin. Time Allowance Time allowed to complete the Torque Verification (Repair A) is 0.1 hr (6 mins). Time allowed to complete the Torque Application (Repair B), if required, is 0.3hr (18 mins). Remedy to be performed, per enclosed campaign instructions
S19ZI
Service Bulletin/Repair Instructions
Overview: Blue Bird and HSM Quality/Engineering teams have determined that the NextGen seats shipped from September 19, 2017 to March 21, 2019 have exposed holes in the rear side of the seat back frame that can allow a passenger(s) to insert their finger into the holes and possibly get their finger stuck. The number of exposed holes varies with the seat size. Only those holes directly visible to the passenger require plugs. The rear row seats are excluded. HSM has developed a Voluntary Technical Service Bulletin (S19ZI) for the installation of the hole plugs. HSM will provide parts at no cost. No labor will be reimbursed for the installation of the plugs. Affected Units: This service bulletin includes 2018 through 2020 Blue Bird All American and Vision School Buses manufactured from September 19, 2017 through March 21, 2019. Additionally, this service bulletin includes 2019 through 2020 Blue Bird All American and Vision Non-school buses manufactured from June 29, 2018 through February 16, 2019. A separate printout will be provided listing all buses in your territory that are affected by this service bulletin. Service Bulletin S19ZI 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: HSM will provide parts at no cost. Please remit requests for parts to Blue Bird via campaignparts@blue-bird.com using the Service Bulletin S19ZI Kit Order Card and include the Blue Bird Body Number on all documentation. Parts are currently available in limited quantities.
SM1903
Service Bulletin/Repair Instructions
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.
S19ZY
Service Bulletin/Repair Instructions
Overview: The Blue Bird or Cummins Dealer is to use the Cummins INSITE⢠electronic service diagnostic program to set the âRegeneration Inhibit Vehicle Speed Thresholdâ parameter value to 0 mph. Affected Units: All 2017-2020 model year Blue Bird All American School Buses with Cummins ISL-13 or L9 engines manufactured from January 20, 2016 through September 18, 2018 and all model year 2017 through 2020 Blue Bird All American Non-School Buses with Cummins ISL-13 or L9 engines manufactured from January 29, 2016 through September 7, 2018. On the subject buses, Blue Bird or Cummins Dealer is to use the Cummins INSITE⢠electronic service diagnostic program to set the âRegeneration Inhibit Vehicle Speed Thresholdâ parameter value to 0 mph. Repair Parts: None Time Allowance: Time allowed to use the Cummins INSITE⢠set the âRegeneration Inhibit Vehicle Speed Thresholdâ parameter value to 0 mph in each bus is 0.5 hours. Completion Notification: If you have an authorized Cummins Dealer perform this service bulletin, please notify your Blue Bird Dealer, when the repair is completed. Send the body number, repair date, and odometer reading to your Blue Bird Dealer. If you request reimbursement for labor, also send a copy of the work order/invoice to your Blue Bird Dealer.
R17ZBDL91117
Service Bulletin/Repair Instructions
NHTSA Recall number 17V-510 School bus.
SM1701
Service Bulletin/Repair Instructions
The intent of service memorandum SM1701 is to make Blue Bird dealers aware that software for Ametek instrument clusters is available on the Blue Bird Vantage website. Instructions for how to download, install, and use the software is located on the same Vantage page. The new Ametek instrument cluster implemented in production beginning June 5, 2017. The new Ametek instrument clusters can also be used as a direct service part replacement for older Actia instrument clusters. 2008 - Current
SM1702
Service Bulletin/Repair Instructions
The intent of service memorandum SM1702 is to make Blue Bird dealers aware that Cummins has released a calibration update improvement to reduce occurrence of Allison transmission fault code P2637 ?Torque Management Feedback Signal? with Cummins B6.7 diesel engines. Please reference Cummins Technical Service Bulletin ?TSB170089?. For any engines built before July 1, 2017, an ECM Code change is required to prevent occurrence of engine fault code 3555 ?Engine Wait to Start Lamp - Abnormal Update Rate? after updating (ECM) calibration. Please reference Cummins Technical Service Bulletin ?TSB170081?. Blue Bird advises customers to contact their local Cummins repair facility to have these software updates completed.