# Service bulletin TB\-LT\-00774NAS1

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: 10058470
- Published by NHTSA: 2015\-09\-25
- Manufacturer's number: TB\-LT\-00774NAS1
- Manufacturer's date: 2015\-07\-21
- NHTSA component: STEERING: STEERING WHEEL/HANDLE BAR

## NHTSA's summary

LAND ROVER: DUE TO STEERING WHEEL HEATER CONTROL MODULE \(SWH\) SOFTWARE ERROR, THE STEERING WHEEL \(HSW\) OPERATES WHEN ITS NOT REQUESTED TO SO. MODEL 2013\-15 RANGE ROVER SPORT, RANGE ROVER. \*PE

## 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

Steering, Steering column and wheel

## Vehicles listed

- 2013 to 2015 LAND ROVER RANGE ROVER
- 2014 to 2015 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [SSM73943.1 Attac](/bulletins/10145868.md), 2018-10-15, Service bulletin: STEERING:COLUMN; STEERING. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73943.1 Attac](/bulletins/10145867.md), 2018-10-15, Service bulletin: STEERING:COLUMN; STEERING. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73943.1](/bulletins/10145866.md), 2018-10-15, Service bulletin: STEERING:COLUMN; STEERING. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73943 Attachm](/bulletins/10145828.md), 2018-10-15, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR; STEERING. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73943 Attachm](/bulletins/10145827.md), 2018-10-15, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR; STEERING. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73943](/bulletins/10145826.md), 2018-10-15, Service bulletin: STEERING; STEERING: STEERING WHEEL/HANDLE BAR. Issue: A customer may report the vehicle steering feels heavy ? no warnings will be visible on the Instrument Cluster
- [SSM73706](/bulletins/10130721.md), 2018-04-02, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR. Issue: A customer may express a concern of a 'clonk' noise from underneath the vehicle when driving at low speed. The 'clonk' will be most prominent while accelerating/decelerating and when turning the steering wheel. The noise may be more noticeable when performing a U\-turn and applying the throttle.
- [SSM72387](/bulletins/10105667.md), 2017-06-08, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR. "ISSUE: RESIDUE BEING LEFT ON STEERING WHEEL WHEN TRANSPORTATION STEERING WHEEL COVER IS REMOVED. CAUSE: UNDER INVESTIGATION"
- [SSM72030](/bulletins/10105536.md), 2017-06-07, Service bulletin: STEERING:COLUMN. "ISSUE: A CUSTOMER MAY REPORT A NOISE WHEN TURNING THE STEERING WHEEL, WHICH IS CONFIRMED BY THE DEALER AS ORIGINATING FROM THE STEERING COLUMN. DISCOVERY 4/LR4 \(L319\) AND RANGE ROVER SPORT \(L320\) ONLY. 10 MODEL YEAR ONWARDS. CAUSE: JLR ENGINEERING ARE CURRENTLY INVESTIGATING TO UNDERSTAND ANY SITUATIONS WHERE THE STEERING COLUMN IS THE CAUSE OF NOISE WHEN TURNING."
- [LTB00774NAS1](/bulletins/10105527.md), 2017-06-07, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR; ELECTRICAL SYSTEM:SOFTWARE. "SITUATION: THE HEATED STEERING WHEEL \(HSW\) MAY OPERATE WHEN NOT REQUESTED. CAUSE: THIS MAY BE CAUSED BY A SOFTWARE ERROR IN THE STEERING WHEEL HEATER CONTROL MODULE \(SWH\)."

JSON: [/v1/bulletins/10058470](/v1/bulletins/10058470)

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