Service bulletin SC0399
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10078733 |
| Published by NHTSA | 2016-08-16 |
| Manufacturer's number | SC0399 |
| Manufacturer's date | 2016-04-27 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL RISK IS THAT IF THE NUT COMES OFF, THE YOKE CAN SEPARATE FROM THE AXLE INPUT SHAFT AND CAUSE THE DRIVESHAFT TO DISCONNECT. IF THIS OCCURS, A DISCONNECTED DRIVESHAFT CAN DISABLE THE VEHICLE AND RESULT IN DEBRIS IN THE ROADWAY, WHICH INCREASES THE RISK OF A VEHICLE CRASH.
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Transmission and driveline
| MACK CHU | 2013 to 2015 |
|---|---|
| MACK CXU | 2012 to 2015 |
| MACK GU | 2012 to 2015 |
| MACK LEU | 2012 to 2015 |
| MACK LR | 2015 |
| MACK MRU | 2012 to 2015 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 16V099000 | 2016-02-19. POWER TRAIN:DRIVELINE:DRIVESHAFT |
|---|
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| CBR 2573-1 202604 | 2026-05-05. Service bulletin. CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers. |
|---|---|
| CBR 2362-3 202604 | 2026-05-04. Service bulletin. CBR - Mack Carrier Nut Adhesive Change. |
| CBR-731 202409 | 2024-10-03. Service bulletin. CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer |
| CBR-1008 202404 | 2024-05-01. Service bulletin. CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran. |
| CBR-202 202402 | 2024-03-05. Service bulletin. CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft. |
| M-465-001 202311 | 2023-12-05. Service bulletin. TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft. |
| CBR-2112 202307 | 2023-08-02. Service bulletin. CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission |
| KC-503-Ver3 | 2023-06-05. Service bulletin. CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated |
| KC-2229-Ver2 | 2023-06-05. Service bulletin. CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode |
| KC-474-Ver5 | 2023-06-05. Service bulletin. CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19 |