Manufacturer Communications

Vehicles / Allison / Transmission / 9999
Bulletin Number Vehicle Make Vehicle Model Model Year Summary
ST 1099 Rev W ALLISON TRANSMISSION 9999 Service tip notice related to transmission fluid and filter change recommendations<br />
10-TR-99 Rev W ALLISON TRANSMISSION 9999 Service letter related to transmission fluid and filter change recommendations<br />
18-TR-20 ALLISON TRANSMISSION 9999 Announces discontinuing support for AT and MT Series products<br />
ST 1099 Rev V ALLISON TRANSMISSION 9999 Service tip notice related to transmission fluid and filter change recommendations<br />
SIL 10-TR-99 Rev ALLISON TRANSMISSION 9999 Service letter related to transmission fluid and filter change recommendations<br />
SIL 22-WT-20 ALLISON TRANSMISSION 9999 Announces running changes to torque converters and new service kits<br />
SIL 21-TR-20 ALLISON TRANSMISSION 9999 Announces software changes and calibration settings for emissions software<br />
SIL 20-1K2K-20 ALLISON TRANSMISSION 9999 Announces re-design of the C1 piston seal ring<br />
2020FA05 ALLISON TRANSMISSION 9999 Notice of service campaign related to a possible quality issue in clutch hub<br />
IS 367 ALLISON TRANSMISSION 9999 Instructions to help select the appropriate end cap O-rings and assembly process<br />
ST8763EN ALLISON TRANSMISSION 9999 Announces next generation fluid with a new dipstick fluid identification tag<br />
SIL 15-TR-20 ALLISON TRANSMISSION 9999 Announces redesigned torque converter components<br />
TT8136 Rev A ALLISON TRANSMISSION 9999 Tip for technicians to avoid a conflict with the engine controller when re-programming the transmission<br />
TT8834 ALLISON TRANSMISSION 9999 Tech tip for servicing stalk switch control and driver information center in certain DTNA models<br />
ST8835 ALLISON TRANSMISSION 9999 Service tip regarding use of certain chemical compounds that should be avoided when disinfecting the shift-selector bezel<br />
2020FFA05 Rev A ALLISON TRANSMISSION 9999 Notice authorizing companies that they can perform a focused field action for the C1 drive hub in B 500 and 4000 MH model transmissions<br />
IS 368 ALLISON TRANSMISSION 9999 Instruction sheet for service kit for remote floating bundle oil coolers<br />
SIL 04-TR-21 ALLISON TRANSMISSION 9999 Announces release of equivalent Remote, Floating Bundle Oil Coolers as an alternative to available versions<br />
2021FA02 ALLISON TRANSMISSION 9999 Announces field action related to a campaign initiated by Volvo bus for B500 model 9700 transmissions to recalibrate the TCM and inspect C1 drive hub
SIL 60-TR-81 Rev ALLISON TRANSMISSION 9999 Service information related to measurements and inspections for tolerances to ensure proper balance between the engine and transmission mating compone
2021FA01 ALLISON TRANSMISSION 9999 Announces field action related to a campaign initiated by Volvo bus for B500 model 9700 transmissions to recalibrate the TCM<br />
IS 367 Rev A ALLISON TRANSMISSION 9999 Instructions to help select the appropriate end cap O-rings and assembly process<br />
2020FA01 Rev B ALLISON TRANSMISSION 9999 Announces a service campaign related to a non-safety-related concern with the TIBD Main Regulator Valve<br />
2019FA07 Rev E ALLISON TRANSMISSION 9999 Announces campaign to replace the TIDB main valve body for parts that present specific symptoms<br />
2020FA01 Rev A ALLISON TRANSMISSION 9999 Announces a service campaign related to a non-safety-related concern with the TIBD Main Regulator Valve<br />
2020FA02 Rev A ALLISON TRANSMISSION 9999 Announces a service campaign related to a non-safety-related concern with the TIBD Main Regulator Valve<br />
2019FA08 Rev D ALLISON TRANSMISSION 9999 Announces campaign to replace the TIDB main valve body for parts that present specific symptoms<br />
2019FA07 Rev D ALLISON TRANSMISSION 9999 Announces campaign to replace the TIDB main valve body for parts that present specific symptoms<br />
SIL 07-TR-20 ALLISON TRANSMISSION 9999 Service letter announcing change of material in the thrust washers<br />
6-WT-17EN Rev B ALLISON TRANSMISSION 9999 Announces release of remanufactured WTEC II Electronic Control Unit (ECU) and instructions when replacing the ECU<br />
06-WT-04EN Rev C ALLISON TRANSMISSION 9999 Announces the release of several new re-trans products, including interchangeability<br />
TT8735EN ALLISON TRANSMISSION 9999 Informs service technicians to avoid using certain chemicals when disinfecting the shift selector to contain the spread of COVID-19<br />
60-TR-81EN Rev J ALLISON TRANSMISSION 9999 Service information related to measurements and inspections for tolerances to ensure proper balance between the engine and transmission mating compone
WATCH 501 Rev C ALLISON TRANSMISSION 9999 Allison Transmission 5th Generation Controls 2016 (B161, C161, and D161) Software Features and Enhancements<br />
SIL 35-WT-19 ALLISON TRANSMISSION 9999 Announces discontinuation of 4th generation A46 TCM<br />
2019FA08 Rev A ALLISON TRANSMISSION 9999 Announces campaign to replace the TIDB main valve body for parts that present specific symptoms<br />
SIL 28-1K2K-19 ALLISON TRANSMISSION 9999 Service tips for DTC codes<br />
SIL 32-WT-19EN R ALLISON TRANSMISSION 9999 Announces release of new filter life indicator spring<br />
SIL 29-EP-19 ALLISON TRANSMISSION 9999 Notice regarding troubleshooting timeout DTCs<br />
SIL 34-1K2K-19 R ALLISON TRANSMISSION 9999 Details a procedure for trouble shooting the check transmission MIL based on DTC P2789<br />
SIL 01-WT-20 ALLISON TRANSMISSION 9999 Notice regarding inspection of main regulatory valve prior to installation<br />
WP19-023 ALLISON TRANSMISSION 9999 Warranty Policy letter announcing a handling fee on Allison transmission parts that are progressively damaged and replaced as a result of a warrantabl
SIL 27-WT-19EN ALLISON TRANSMISSION 9999 Trouble shooting tips for main-valve-body servicing<br />
SIL 22-WT-19EN R ALLISON TRANSMISSION 9999 Announces new anodized main valve body<br />
FA8533EN ALLISON TRANSMISSION 9999 Announces campaign to address a potential issue in the C3 clutch housing<br />
19-TR-19EN ALLISON TRANSMISSION 9999 Service tip for the optional Preselect Optimization feature. The transmission will not initiate preselect downshifts when the engine brake is active,
SIL 11-EP-19EN ALLISON TRANSMISSION 9999 Announces release of a new connector for the internal-harness bulkhead that uses anodized aluminum to replace the composite plastic design<br />
SIL 16-WT-19EN ALLISON TRANSMISSION 9999 Announces new configuration for bolts used to fasten flexplates that was made to facilitate ease of installation in certain OEM factories<br />
SIL 15-1K2K-19EN ALLISON TRANSMISSION 9999 Announces release of new PTO gasket that increases the seal bead around the gasket corners and is interchangeable with the former design<br />
SIL 17-WT-19EN ALLISON TRANSMISSION 9999 Outline of the service procedure for replacing the O-rings for the floating-bundle-transmission oil coolers<br />
TT7248EN ALLISON TRANSMISSION 9999 Tech tip alerting service channel of Penske Truck Leasing program to have TCM reprogrammed from 5 speed to 6 speed calibration<br />
2015FA05 Rev C ALLISON TRANSMISSION 9999 Notice related to replacing torque converter backing plate bolt<br />
10-TR-19EN ALLISON TRANSMISSION 9999 Announces additional trouble shooting steps for 5th Generation TCMs<br />
WATCH 544 Rev A ALLISON TRANSMISSION 9999 Announces release of new torque converter housing that are backwards compatible with current and future torque converter housings.<br />
SIL 28-WT-18 EN ALLISON TRANSMISSION 9999 Announces a change in the design of the torque converter's turbine-hub seal-ring<br />
SIL 06-EP-19EN ALLISON TRANSMISSION 9999 Troubleshooting tips for DC-to-DC converter for high voltage DC power from the ESS to non-Allison components<br />
SIL 18-1K2K-19EN ALLISON TRANSMISSION 9999 Announces release of a high gain, non-NAS main valve body to replace the standard gain, non-NAS main valve body<br />
SIL 08-TR-19 ALLISON TRANSMISSION 9999 Announces change in the color of the transmission-wiring-harness connector<br />
ST 1099 Rev R ALLISON TRANSMISSION 9999 Service Tip regarding Transmission Fluid/Filter Change Recommendations<br />
ST 1898 Rev B ALLISON TRANSMISSION 9999 Service Tip regarding Water and/or Ethylene Glycol in Transmission Fluid. The analysis of the fluid sample (by the fluid supplier or any qualified lab
2014FA03 ALLISON TRANSMISSION 9999 Customer service campaign regarding Transmissions Replacement in Constellation Cab MAN Vehicles Due to Water Intrusion by OEM<br />
SIL 25-WT-19 ALLISON TRANSMISSION 9999 Relates to servicing options for complaints of upshift limitation in specific circumstances<br />
SIL 23-WT-19 ALLISON TRANSMISSION 9999 Announces new main regulator valve<br />
SIL 20-WT-01 Rev ALLISON TRANSMISSION 9999 Announces the release of a Filter Cover Bolt Hole Repair Kit<br />
SIL 20-WT-19 ALLISON TRANSMISSION 9999 Announces release of a new torque converter<br />
SIL 21-TC10-19 ALLISON TRANSMISSION 9999 Announces release of new chimney seal part number<br />
SIL 22-WT-19 ALLISON TRANSMISSION 9999 Announces new anodized main valve body<br />
WATCH 543 Rev A ALLISON TRANSMISSION 9999 Announces release of new control software and its compatibility<br />
ST 815 Rev C ALLISON TRANSMISSION 9999 Service Tip regarding Allison Transmission Service/Parts Information Release Notification<br />
TT8484EN ALLISON TRANSMISSION 9999 Explains troubleshooting for unwanted shot to ground causing DTC P0658<br />
2018FA08 ALLISON TRANSMISSION 9999 Announces customer satisfaction campaign related to torque converter turbine and backing plate<br />
TT8470EN ALLISON TRANSMISSION 9999 Offers service procedure for verifying a transmission fluid leak that originates from the torque converter<br />
SIL 4-EP-19EN ALLISON TRANSMISSION 9999 Announces availability of re-freshed kit for Energy Storage System (ESS3) and includes installation instructions<br />
4-EP-13EN Rev B ALLISON TRANSMISSION 9999 Relates to Increased Accessory Power 1 (IAP1) and IAP2 systems and serviceability information<br />
ST 815 Rev C ALLISON TRANSMISSION 9999 Service Tip regarding Allison Transmission Service/Parts Information Release Notification<br />
TT7478EN ALLISON TRANSMISSION 9999 Tech Tip concerning Navistar Required 5th Gen Transmission Control Module (TCM) Reprogram to address a low power/poor performance concern<br />
27-EP-15EN Rev B ALLISON TRANSMISSION 9999 Instructions for using Amprobe Ohm Megger (Model AMB-45) for troubleshooting<br />
6-WT-17 Rev A ALLISON TRANSMISSION 9999 Announces release of remanufactured WTEC II Electronic Control Unit (ECU) and instructions when replacing the ECU<br />
SIL 27-EP-18EN ALLISON TRANSMISSION 9999 Announces the availability of the DC busbar and procedures for replacing the DC busbar located inside the DPIM2<br />
2018FA08 ALLISON TRANSMISSION 9999 Announces customer service campaign related to noise and internal debris in the torque converter related to an internal bolt<br />
TT8263EN ALLISON TRANSMISSION 9999 Alerts service network to potential issues if the OEM or body builder violates Allison Datalink Communication requirements and allows non-Allison comp
TT8247 ALLISON TRANSMISSION 9999 Servicing tip for complaints about shift issues<br />
SIL 29-EP-18 ALLISON TRANSMISSION 9999 Provides instructions for proper installation of high-voltage DC and AC cables to the DPIM2<br />
WATCH 544 ALLISON TRANSMISSION 9999 Announces release of new control software and compatibility<br />
SIL 33-TC10-18 ALLISON TRANSMISSION 9999 Advises the service channel on the proper procedures and components for retrofitting the TC-10 transmission with a power-take-off (PTO) drive gear<br
WATCH 543 ALLISON TRANSMISSION 9999 Announces release of new control software and compatibility<br />
ST 815 Rev C ALLISON TRANSMISSION 9999 Service Tip regarding Allison Transmission Service/Parts Information Release Notification<br />
TT7248EN ALLISON TRANSMISSION 9999 Tech tip alerting service channel of Penske Truck Leasing program to have TCM reprogrammed from 5 speed to 6 speed calibration<br />
SIL 24-WT-18 EN ALLISON TRANSMISSION 9999 Announces omission of trim hole<br />
TT8045EN Rev A ALLISON TRANSMISSION 9999 Service tip regarding preselect downshift that is being addressed by Freightliner Custom Chassis Corporation<br />
TT8025EN Rev A ALLISON TRANSMISSION 9999 Informs service channel that it will support Freightliner Custom Chassis Corporation field action related to engine retarder.<br />
TT7539EN Rev B ALLISON TRANSMISSION 9999 Announces calibration problem from Freightliner Custom Chassis Corporation<br />
2018FA07EN ALLISON TRANSMISSION 9999 Announces customer service campaign related to transmission switch issue<br />
IS 278 ALLISON TRANSMISSION 9999 Instructions for identify the correct seal ring when overhauling transmissions<br />
2015FA06 Rev B ALLISON TRANSMISSION 9999 Announces field action regarding the torque converter's backing plate bolt<br />
SIL 23-TR-18EN ALLISON TRANSMISSION 9999 Announces updated design of turbine shaft seal ring<br />
SIL 20-WT-18EN ALLISON TRANSMISSION 9999 Announces change in color of latch-valve spring that are interchangeable with the prior version<br />
SIL 22-EP-16 Rev ALLISON TRANSMISSION 9999 Provides information related to replacing Current Sensors Inside the Dual Power Inverter Module 2 (DPIM2)<br />
SIL 14-TR-18EN ALLISON TRANSMISSION 9999 Announces and describes new and updated diagnostic trouble codes (DTC) for 5th generation controls.<br />
SIL 25-1K2K-18 ALLISON TRANSMISSION 9999 Offers troubleshooting for complaints of harsh shifts and DTC code for clutch adaptive learning at limit<br />
10-WT-00EN Rev A ALLISON TRANSMISSION 9999 Explains redesign of planetary spindles and interchangeability<br />
SIL 18-TC10-18 ALLISON TRANSMISSION 9999 Highlights the release of a new shift valve body separator plate with information on serviceability and interchangeability<br />
IS 361 ALLISON TRANSMISSION 9999 Instructions related to for two channel plate gaskets in a seal and gasket kit<br />
IS 360 ALLISON TRANSMISSION 9999 Instructions related for two channel plate gaskets in a seal and gasket kit<br />
IS 359 ALLISON TRANSMISSION 9999 Instructions related to for two channel plate gaskets in a seal and gasket kit<br />
IS 358 ALLISON TRANSMISSION 9999 Instructions related for two channel plate gaskets in a seal and gasket kit<br />
SIL 07-TR-18 ALLISON TRANSMISSION 9999 Announces calibration settings for neutral at stop feature with new software<br />
SIL 08-TR-18 ALLISON TRANSMISSION 9999 Announces limits for disabling or modifying some custom features in new software<br />
SIL 04-TR-18EN ALLISON TRANSMISSION 9999 Announces restrictions on calibration settings for new software<br />
SIL 10-TC10-18 ALLISON TRANSMISSION 9999 Announces minor visual alteration to the speed sensor connector in the internal wiring harness<br />
IS 356 ALLISON TRANSMISSION 9999 Instruction sheet related to servicing neutral at stop low gain valve body<br />
SIL 10-TR-86EN R ALLISON TRANSMISSION 9999 Provides technical information regarding driveline components, including inspection processes<br />
18-TPPL-10 ALLISON TRANSMISSION 9999 Announce new part numbers for maintenance filter kits<br />
SIL 06-WT-18 ALLISON TRANSMISSION 9999 The control in software update reduced clutch pressures under certain circumstances<br />
TT8115 ALLISON TRANSMISSION 9999 Announces field study of output bearings<br />
SIL 32-WT-17 ALLISON TRANSMISSION 9999 Announces release of 5th generation software and diagnostic trouble codes<br />
2015FA06-ES Rev ALLISON TRANSMISSION 9999 Spanish-language version of customer service campaign related to a bolt may impact the torque converter turbine and backing plate, resulting in intern
SIL 18-WT-17 Rev ALLISON TRANSMISSION 9999 Discusses two engine mounting adaption configurations for 4000 series transmissions with Navistar N13 engines<br />
SIL 26-TR-17 ALLISON TRANSMISSION 9999 Announces discontinuation of tone wheel part number with a new design and explains interchangeability during servicing<br />
SIL 28-TC10-17 ALLISON TRANSMISSION 9999 Announces changes to the gear tooth geometry and interchangeability or components when repairing the TC10 transmission<br />
2015FA05-ES Rev ALLISON TRANSMISSION 9999 Spanish-language version of Field Action that announces special coverage for a bolt may impact the torque converter turbine and backing plate, resulti
IS 364 ALLISON TRANSMISSION 9999 Announces changes to fluid change procedures<br />
ST1707 Rev E ALLISON TRANSMISSION 9999 Troubleshooting guide for low power complaints in conjunction with certain DTCs<br />
SIL 17-EP-07 Rev ALLISON TRANSMISSION 9999 Provides servicing information for diagnosing engine low power complaints in conjunction with DTCs<br />
SIL 18-WT-14 Rev ALLISON TRANSMISSION 9999 Announces release of and part numbers for revised oil cooler parts and service information related to the parts<br />
SIL 02-WT-18 ALLISON TRANSMISSION 9999 Announces replacement temperature sensor and its interchangeability with the former sensor<br />
SIL 07-EP-15 Rev ALLISON TRANSMISSION 9999 Announces CertPlus parts for use in states adopting California Air Resource Board certification requirements<br />
SIL 22-EP-17 ALLISON TRANSMISSION 9999 Announces release of 5th Generation Control and software for hybrid-transmission product line and tools need for servicing<br />
TT7994 Rev A ALLISON TRANSMISSION 9999 Provides servicing tip for DTC P2789 in IC bus and software reflash instructions<br />
SIL 15-WT-01 Rev ALLISON TRANSMISSION 9999 Announces product improvement that decreases the clearance between the planetary spindle and the spindle retaining ring and increased hardness in the
17-TPPL-16 ALLISON TRANSMISSION 9999 Requests the return of certain WTEC III controls due to non-communication.<br />
SIL 1-EP-15 Rev ALLISON TRANSMISSION 9999 Announces the availability of SKiM module and GATE drive card service kit and the procedures for replacing these parts.<br />
SIL 7-WT-96 Rev ALLISON TRANSMISSION 9999 Announces new external accumulator assemblies for transmissions with a retarder and how to identify the differences in the parts.<br />
31TR02 ALLISON TRANSMISSION 9999 MT CONVERTER PUMP COVER ASSEMBLY. *TT<br />
27TR02 ALLISON TRANSMISSION 9999 LUBE FLOW/PRODUCT IMPROVEMENTS. M/S9600, S9800 MODELS. *TT<br />
9WT98 ALLISON TRANSMISSION 9999 EXPERIENCING A CODE 54 23 WHEN A CLOSED THROTTLE 2-1 DOWNSHIFT IS INTERRUPTED BEFORE THE SHIFT IS COMPLETED BY AN INCREASE IN THROTTLE PERCENTAGE AND
98500 ALLISON TRANSMISSION 9999 SUBJECT ON CUSTOMER SATISFACTION CAMPAIGN ON C5 CLUTCH FRICTION MATERIAL. *YC<br />
32TR02 ALLISON TRANSMISSION 9999 RELEASE OF J-46550 PALL TRANSMISSION COOLER KWIK-FLUSH CART. *TT<br />
TT7880EN ALLISON TRANSMISSION 9999 INSTALLATION ISSUE COULD LEAD TO PROLONGED CONTACT OF AIR LINES WITH THE TCM OR TRANSMISSION WIRING HARNESS AND VEHICLES COULD EXPERIENCE UNEXPECTED D
SIL 9-EP-16REVC ALLISON TRANSMISSION 9999 ANNOUNCES THE THIRD GENERATION ENERGY STORAGE SYSTEM (ESS 3), DESCRIBES THE DIFFERENCES BETWEEN THE ESS 2 AND ESS 3, AND PROVIDES DETAILS ON NEW SERVI
SIL 34-EP-16EN ALLISON TRANSMISSION 9999 SERVICE LETTER ANNOUNCING THE AVAILABILITY OF SERVICE PARTS TO REPLACE THE AC CHOKE AND O-RING MOUNTED ON THE DUAL POWER INVERTER MODULE 2 (DPIM 2) AN
SIL 1-EP-15REVB ALLISON TRANSMISSION 9999 SERVICE LETTER ANNOUNCING THE AVAILABILITY OF KITS TO REPLACE COMPONENTS OF THE DUAL POWER INVERTER MODULE 2 (DPIM2) AND ELIMINATING THE NEED TO REPLA
2016FA02 ALLISON TRANSMISSION 9999 ALLISON TRANSMISSION AND NAVISTAR JOINTLY IDENTIFIED A POTENTIAL QUALITY ISSUE RELATED TO ADAPTION HARDWARE. DAMAGE TO THE ADAPTION HARDWARE CAN DEVEL
33-TR-16 ALLISON TRANSMISSION 9999 TWO-PART ANNOUNCEMENT REGARDING THE RELEASE OF ENHANCEMENTS MADE TO THE A61, A62, A63, AND A65 5TH GENERATION CONTROLS TCMS AND THE RELEASE OF ADDITIO
11WT01 ALLISON TRANSMISSION 9999 SUBJECT REGARDING NEW ELECTRONIC CONTROL UNITS, V9A CONTROLS SOFTWARE, AND NEW TRANSMISSION CALIBRATIONS FOR WORLD TRANSMISSION MODELS.
10WT01 ALLISON TRANSMISSION 9999 ALLISON TRANSMISSION SERVICE INFORMATION REGARDING CANCELLATION OF MD PRE-BLOCK RETRAN CENTER ASSEMBLY NUMBERS. *TT<br />
SB-2012-FA-03-D ALLISON TRANSMISSION 9999 SUMMARY TO BE PROVIDED ON A FUTURE DATE.<br />
97101 ALLISON TRANSMISSION 9999 SUMMARY TO BE PROVIDED ON A FUTURE DATE.<br />
92717 ALLISON TRANSMISSION 9999 SUMMARY TO BE PROVIDED ON A FUTURE DATE.<br />
WA7742EN ALLISON TRANSMISSION 9999 Notification of Design Change for the 12V and 24V Vehicle Interface Modules (VIM) Effective Q4 2016, Allison Transmission has modified the 12V and 24

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