Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 449 bulletins for ALLISON
2014FA12
May 13, 2015
100000 POWER TRAIN
Customer service campaign to recalibrate software to adjust torsional torque to reduce engine induced reversing torque.
HD-4560
May 11, 2015
103700 POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
VALLEY TRUCK: REPAIR PROCEDURES PROVIDED DUE TO LAYERS OF PAINT ON TORQUE CONVERTER COVER CAUSING CHANGES BETWEEN ADAPTER RING AND TORQUE CONVERTER COVER OF TRANSMISSIONS GEAR ADAPTER BOLTS TO BREAK. MODEL OSHKOSH S SERIES. NO YEARS LISTE
FA-2014FA12
May 1, 2015
060000 ENGINE (PWS)
ALLISON TRANSMISSION: ACCELERATE TORSIONAL FATIGUE DAMAGE TO DRIVE UNIT INPUT SHAFT CAUSED BY ENGINE RPM DWELLING AT OR NEAR 280 TO 560 RPM CAN BE REDUCED BY NEW DEVELOPED SOFTWARE FOR DRIVE UNIT EXPOSURE TO EXCESSIVE ENGINE. *P
ICI-15-001
Feb 27, 2015
102000 POWER TRAIN:MANUAL TRANSMISSION
DAIMLER TRUCKS (ALLISON TRANSMISSION) : INFORMATION PROVIDED REGARDING INCORRECT CALIBRATION OF LOAD BASE SHIFT SCHEDULING (LBSS), CAUSING POOR PERFORMANCE ON CERTAIN TRUCK, DURING NORMAL DRIVING CONDITIONS, AND NEED TO BE RECALIBRATED.
2014FA09 Rev A
Feb 23, 2015
100000 POWER TRAIN
List of common symptoms regarding A51, A52, and A53 TCM Failures and replacement program.
TT7484EN Rev A
Feb 9, 2015
060000 ENGINE (PWS)
Tech Tip concerning Pushbutton Shift Selector on Kenworth and Peterbilt Trucks will skip the oil level check and proceed to Prognostics
FA-2014FA09
Feb 1, 2015
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
ALLISON TRANSMISSION: SOME TRUCKS ARE EXPERIENCING SYMPTOMS THAT CAUSES FAILURE TO THE TRANSMISSION CONTROL MODULE (TCM) SUCH AS NO FORWARD RANGES, WILL NOT PROGRAM OR FLASH, HARSH OR ERRATIC SHIFTING, WILL NOT START, STUCK IN RANGE, HAVE
TT-7484-EN
Feb 1, 2015
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
ALLISON TRANSMISSION: ON SOME TRUCKS, THE PUSH BUTTON SHIFT SELECTOR (PBSS) SKIPS OIL LEVEL READING AND GOES DIRECTLY TO PROGNOSTICS AND COULD BE MISSING WIRE 116 ON BULKHEAD OTHER SIDE. MODELS T680, T880, 579, 567. *PE UPDATED 2
TT7606EN
Feb 1, 2015
100000 POWER TRAIN
Tech Tip explaining that certain TCMs may be mounted in a location that does not conform to specifications
2010FA01 Rev A
Nov 18, 2014
100000 POWER TRAIN
Relates to customer satisfaction campaign related to reduced life on a current sensing resistor in the TCM.
FA-2014FA08
Nov 1, 2014
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
ALLISON TRANSMISSION: TRANSMISSION CONTROL MODULE (TCM), IN SOME TRUCKS, WITH TORQUE CONVERTER LOCKUP, WILL HAVE PREMATURE C4 CLUTCH PACK WEAR AND WILL NEED TO HAVE NEW CALIBRATIONS INSTALLED TO PREVENT TORQUE CONVERTER LOCKUP IN THE 1ST R
2014FA09
Oct 14, 2014
100000 POWER TRAIN
List of common symptoms regarding A51, A52, and A53 TCM Failures and replacement program.
TT7539EN
Sep 16, 2014
100000 POWER TRAIN
Tech Tip concerning program by Freightliner Custom Chassis Corp regarding 5th Generation Controls LoadBased Shift Scheduling (LBSS) Calibration Settings. The system will correct the calibration settings for this specific TCM
TT-7539EN
Sep 1, 2014
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
ALLISON TRANSMISSION: ON SOME TRUCKS CHASSIS, THE CALIBRATION SETTING FOR 5TH GENERATION CONTROLS LOAD BASED SHIFT SCHEDULING (LBSS) IS INCORRECT AND CAUSES POOR DRIVING PERFORMANCE. *PE
TT7546EN
Sep 1, 2014
100000 POWER TRAIN
Tech Tip reminding service channel to re-flash TCM with after calibrating the tachograph
2012FA03 Rev D
Aug 1, 2014
100000 POWER TRAIN
Customer satisfaction campaign to remove and replace some Dual Power Inverter Modules (DPIM2), with part ordering instructions.
TT7502EN
Jun 12, 2014
060000 ENGINE (PWS)
Tech Tip concerning Setting Cummins 2013 ISL engine codes during reprogramming and TCM Reflash
TT7491EN
May 13, 2014
100000 POWER TRAIN
Tech Tip concerning Transmission Harness Damage Due to Contact with Windshield Wiper Linkage and/or Unsecured Transmission Control Module (TCM)
2014FA03
May 7, 2014
100000 POWER TRAIN
Customer service campaign regarding Transmissions Replacement in Constellation Cab MAN Vehicles Due to Water Intrusion by OEM
TT7484EN
May 2, 2014
060000 ENGINE (PWS)
Tech Tip concerning Pushbutton Shift Selector on Kenworth and Peterbilt Trucks will skip the oil level check and proceed to Prognostics
FA-2014FA03
May 1, 2014
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
ALLISON TRANSMISSION: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. WATER USED TO VERIFY SEALING INTEGRITY, HAD INADVERTENTLY ENTERED THE TRANSMISSION FLUID AND THE FLUID IS DETRIMENTAL TO DURABILITY A
TT-7491EN
May 1, 2014
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
ALLISON TRANSMISSION (PETERBILT): DUE TO WINDSHIELD WIPER LINKAGE OR UNSECURED TRANSMISSION CONTROL MODULE (TCM), THE TRANSMISSION HARNESS IS DAMAGED AND DIAGNOSTIC TROUBLE CODES (DTC) MAY BE DUE TO RAINY OR WET WEATHER CONDITIONS AND IS
8-1K2K-07 Rev A
Apr 30, 2014
100000 POWER TRAIN
Informs the service channel that it may find and download the appropriate calibration for a replacement TCM for GMT 560 Calibration using a VIN look-up tool.
IK-1300015
Apr 29, 2014
102000 POWER TRAIN:MANUAL TRANSMISSION
INTERNATIONAL: SHIFT LEVER INTERLOCK SOLENOID FOR THE ALLISON TRANSMISSION WON'T UNLOCK WITH BRAKE PEDAL DEPRESSED. THE INTERLOCK FOR SHIFTER WITH PARK POSITION FEATURE IS CONTROLLED BY THE PRESENCE OF THE IGNITION SIGNAL, ACCESSORY SIGNAL