Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 73 bulletins for ALLISON DIV
SIL 28-TR-23
Jan 18, 2024
118000 ELECTRICAL SYSTEM:SOFTWARE
Announces release of software update for 6th generation controls
22-1K2K-23 Rev A
Jan 16, 2024
100000 POWER TRAIN
Service tip for servicing diagnostic trouble codes related to transmission fluid pressure in certain OEM vehicles
SIL 26-WT-23
Jan 2, 2024
100000 POWER TRAIN
Troubleshooting and repair information for check transmission lamp and DTC related to the transmission's clutch life
SIL-08-WT-23
Sep 22, 2023
060000 ENGINE AND ENGINE COOLING
Service information related to 7-speed output shaft
SIL13WT22
Aug 8, 2023
100000 POWER TRAIN
Announces launch of remote mount ES-S electric pump for the 4000 series transmission
SIL 19-1k2k-22
Jul 28, 2023
118000 ELECTRICAL SYSTEM:SOFTWARE
Service tip related to servicing AFRI to update software.
ST 1099 Rev BB
Jun 20, 2023
100000 POWER TRAIN
Service tip notice related to transmission fluid and filter change recommendations
2023FA02 Rev A
Jun 16, 2023
100000 POWER TRAIN
Announces campaign to reflash certain transmission control modules to re-flash software calibrations
SIL 13-WT-22
May 31, 2023
100000 POWER TRAIN
Announces launch of remote mount ES-S electric pump for the 4000 series transmission
SIL 21-1K2K-21 R
Apr 26, 2023
100000 POWER TRAIN
Announces part changes to commonize parts for certain 6-speed and 9-speed transmissions
2023FA02
Apr 3, 2023
100000 POWER TRAIN
Announces campaign to reflash certain transmission control modules to re-flash software calibrations
SIL-05-EP-23
Mar 20, 2023
110000 ELECTRICAL SYSTEM
Service information for safely working with high-voltage electrical equipment
TT9076
Mar 8, 2023
118000 ELECTRICAL SYSTEM:SOFTWARE
Service tip related to diagnostic code in 6th generation software in certain vehicles
SIL01-WT-23
Feb 13, 2023
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
Announces new retarder lever to replace two previous designs
SIL 18-TR-22
Dec 22, 2022
100000 POWER TRAIN
Announces changes for receiving TCM reflash calibrations
WATCH 543 Rev D
Dec 2, 2022
100000 POWER TRAIN
Announces release of new control software and compatibility
T2513
Sep 22, 2022
100000 POWER TRAIN
This Temporary Repair Practice is being issued to address failures related to fault codes 1139, 1141, 1142, 1143, 1144, 1145, 3748, 3749, 4713, and/or 3151 on certain ISB6.7 Hybrid Bus engines with Allison Transmission Systems only. This TR
SIL-09-1K2K-22
Aug 29, 2022
100000 POWER TRAIN
Notice introducing improved design of the Carrier Assembly, P2 Planetary.
ST1099
Aug 11, 2022
100000 POWER TRAIN
Service tip notice related to transmission fluid and filter change recommendations.
SIL-10-TR-99
Aug 10, 2022
100000 POWER TRAIN
Details transmission fluid types and service intervals.