Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 266 bulletins for BLUE BIRD
SM2401
Feb 9, 2024
060000 ENGINE AND ENGINE COOLING
SM2401: 7.3L / 6R140 Fluid Cross Contamination Issue: Coolant and Transmission Fluid Cross Contamination Corrective Action: Outline in the SM2401 Service Memorandum Instructions, per SM2401 Flowchart.
Draglink01312024
Jan 31, 2024
010000 STEERING
Uploading documents that will be sent out to customers to educate them about draglink maintenance.
SU2302
Oct 25, 2023
060000 ENGINE AND ENGINE COOLING
Coolant leaks at the transmission cooler fittings on the radiator are occurring due to deformation of the gasket used to seal off the transmission cooler. This deformation is caused from transmission oil wicking through the thread adapter
SM 23-01
Aug 11, 2023
060000 ENGINE AND ENGINE COOLING
A motor high temperature error can display on the instrument cluster when the OEM coolant valve in the closed position restricting coolant flow through the high voltage propulsion motor.
SM2203
Sep 2, 2022
100000 POWER TRAIN
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 u
SM2201
Sep 2, 2022
060000 ENGINE AND ENGINE COOLING
SM2201 Ford 7.3L PATS Module Familiarization PATS Immobilizer Module: Purpose, Functionality, and Troubleshooting The PATS (Passive Anti-Theft System) or SPM (Security PATS Module) is a new piece of required hardware that has not been us
SM2202
Sep 2, 2022
060000 ENGINE AND ENGINE COOLING
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 maintena
SU2201
Aug 18, 2022
060000 ENGINE AND ENGINE COOLING
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 messag
SU22-02
Apr 13, 2022
110000 ELECTRICAL SYSTEM
This document provides information on the cluster software improvement to address symptoms of acceptable parasitic battery loss attributed to CAN Devices not going to sleep. This symptom is occasionally accompanied by the cluster flashing
S21BK
Aug 24, 2021
060000 ENGINE AND ENGINE COOLING
Overview: Certain 2022 model year Blue Bird Vision School Bus units that are equipped with a ROUSH CleanTech 7.3L V8 gasoline or propane engine, with or without an air pump, Roush and Blue Bird have identified a concern with falsely settin
S21AZ
Jun 10, 2021
060000 ENGINE AND ENGINE COOLING
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
SU2105
May 18, 2021
110000 ELECTRICAL SYSTEM
The intent of Service Update SU2105 is to provide service notification of a running product improvement part change to the relay used for diesel exhaust fluid (DEF) line heaters. The new DEF line heater relay will be "Diode Suppressed". The
SU2104
Apr 23, 2021
110000 ELECTRICAL SYSTEM
The intent of Service Update SU2104 is to provide a quick reference document of a??Required Dealer Service Support Softwarea?? for servicing, a current production model Blue Bird Bus. The list includes standard OEM bus and truck service sof
SU2103
Mar 15, 2021
110000 ELECTRICAL SYSTEM
The intent of Service Update SU2103 is to announce a new Shaw Development Technical Bulletin. The Technical Bulletin is intended to guide Shaw Development customers in troubleshooting fault codes related to the DEF tank assembly on Cummins
SU2101
Feb 25, 2021
110000 ELECTRICAL SYSTEM
The intent of Service Update SU2101 is to provide instruction when windshield replacement is required on buses equipped with Blue Bird Factory Installed Mobileye Collision Mitigation Features. Applicable Blue Bird features: 38105-34 a??MOB
DOR-K2T5D-01
Dec 3, 2020
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
This SKU is a DEF Injector. 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
S20AT
Nov 9, 2020
030000 BRAKES (PWS)
Overview: Certain buses built with SmartTrac Hydraulic Anti-lock Brakes (ABS) may have dual fuse block 10041668 assembled incorrectly, causing the ABS fault lamp to illuminate. The Dealer is to inspect and verify the correct assembly of
SM2001
Aug 25, 2020
100000 POWER TRAIN
The intent of Service Memorandum SM2001 is to ??A???A???A?Announce a New Blue Bird Dealer Process??A???A???A? now available to perform a Ford Powertrain Control Module (PCM) modification remotely at the dealer service center location. This
SM1906
Dec 11, 2019
100000 POWER TRAIN
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 a??Engine fault codes 3555 and 3556a?? on Cummins diesel engines with the followin
SU1901
Dec 11, 2019
060000 ENGINE AND ENGINE COOLING
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. Thi
DAN-D4V6K-02
Nov 22, 2019
105300 POWER TRAIN:DRIVELINE:DRIVESHAFT
This is a communication from Dana to Blue Bird identifying a potential non-conformance in supplied bearing cups due to a possible through hardness condition.
S19AK
Nov 21, 2019
220000 SEATS
Attention HSM Customer: HSM Transportation & Specialty Manufacturing Company (HSM) has reviewed reports of school bus seat foam separation occurring at the adhesive seam along the seat back. HSM will continue addressing these occurrences
SM1905
Oct 15, 2019
110000 ELECTRICAL SYSTEM
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, "Powertr
SM1904
Oct 15, 2019
110000 ELECTRICAL SYSTEM
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 modul
S19AG
Sep 19, 2019
110000 ELECTRICAL SYSTEM
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 o