# Service bulletin SSM46477

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: 10106024
- Published by NHTSA: 2017\-06\-12
- Manufacturer's number: SSM46477
- Manufacturer's date: 2010\-11\-25
- NHTSA component: EQUIPMENT:MECHANICAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

## NHTSA's summary

"RE\-ISSUED DEC 2015 ISSUE: EXCESSIVE RUMBLE/HUMMING NOISE OR HIGH PITCHED WHINE COMING FORM THE REAR OF THE VEHICLE CAUSE: ROOT CAUSE, PINION TAIL BEARING SPALLING CAUSED BY SUBSURFACE MATERIAL DEFORMATION. CAUSE OF SUBSURFACE DEFORMATION IS STATIC OVERLOAD."

## 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

Equipment and accessories, Transmission and driveline, Differential

## Vehicles listed

- 2008 to 2015 LAND ROVER LR2

## Other bulletins for the same vehicles and component

- [SSM54417](/bulletins/10103481.md), 2017-06-06, Service bulletin: STEERING:RACK AND PINION; EQUIPMENT:MECHANICAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. "ISSUE: A CUSTOMER MAY REPORT A CONCERN OF EXCESSIVE HUMMING NOISE AND OR RUMBLE OR HIGH PITCHED WHINE COMING FROM THE REAR OF THE VEHICLE, DEALER DIAGNOSIS IDENTIFIES THE NOISE IS COMING FROM THE REAR DIFFERENTIAL ASSEMBLY. CAUSE: THE PINION TAIL BEARING IS WORN DUE TO STATIC OVER LOADING."
- [LTB00478NAS2](/bulletins/10100824.md), 2017-05-26, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; TRACTION CONTROL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. "SITUATION: A ‘TRANSMISSION FAULT\-TRACTION REDUCED’ MESSAGE MAY BE DISPLAYED IN THE MESSAGE CENTER AND DIAGNOSTIC TROUBLE CODE \(DTC\) P1889\-14 OR P0961\-62 MAY BE STORED IN THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\). NOTE: ANY REPAIRS OTHER THAN CONFIGURING THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\) MUST BE CARRIED OUT AS A SEPARATE CLAIM. CAUSE: THIS MAY BE CAUSED BY THE REAR DIFFERENTIAL CONTROL MODULE \(RDCM\) DIAGNOSTIC FUNCTION BEING TOO SENSITIVE, LEADING TO THE FALSE DETECTION OF OPEN CIRCUITS OR STICKING VALVES IN THE ACTIVE ON\-DEMAND COUPLING ASSEMBLY."
- [LTB\-00478\-NAS\-2](/bulletins/10053924.md), 2013-12-04, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. LAND ROVER: IN THE MESSAGE CENTER, TRANSMISSION FAULT TRACTION REDUCED, IS DISPLAYED AND MAY BE STORED IN REAR DIFFERENTIAL CONTROL MODULE \(RDCM\), ON SOME VEHICLES. MODEL 2009\-2011 LR2. \*PE

JSON: [/v1/bulletins/10106024](/v1/bulletins/10106024)

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