# Service bulletin LTB00557NAS2

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: 10100976
- Published by NHTSA: 2017\-05\-26
- Manufacturer's number: LTB00557NAS2
- Manufacturer's date: 2014\-01\-23
- NHTSA component: SUSPENSION

## NHTSA's summary

"SITUATION: A KNOCK SOUND FROM THE FRONT SUSPENSION MAY BE HEARD INSIDE THE VEHICLE WHEN TRAVELING OVER AN UNEVEN ROAD SURFACE. THE SOUND MAY BE NOTICEABLE, WHEN ONE OF THE FRONT WHEELS TRAVELS OVER A UNEVEN SURFACE WHILE THE OPPOSITE FRONT WHEEL REMAINS ON A SMOOTH SURFACE. CAUSE: THIS MAY BE CAUSED BY THE OPERATION OF THE DYNAMIC RESPONSE SYSTEM ACTUATORS."

## 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

Suspension

## Vehicles listed

- 2013 to 2014 LAND ROVER RANGE ROVER

## Recalls for the same vehicles and component

- [2022668](/recalls/tc/2022668.md), 2022-11-23: Suspension

## Other bulletins for the same vehicles and component

- [SSM75824](/bulletins/10226073.md), 2022-11-08, Service bulletin: SUSPENSION. Chassis Control Module \(CHCM\) Suspension Warning on Cluster
- [LTB00557NAS3](/bulletins/10224573.md), 2022-10-24, Service bulletin: SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [LTB00557NAS2](/bulletins/10224572.md), 2022-10-24, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [LTB00557NAS1](/bulletins/10224571.md), 2022-10-24, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [LTB00557NAS3](/bulletins/10214095.md), 2022-06-13, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [LTB00557NAS2](/bulletins/10214094.md), 2022-06-13, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [LTB00557NAS1](/bulletins/10214093.md), 2022-06-13, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION; EQUIPMENT. Technical Bulletin: Knock Sound From Front Suspension \(Onwards\)
- [SSM67037](/bulletins/10206599.md), 2022-01-18, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Dynamic Response Pipes contacting Deployable Side step bracket \- When fitting the deployable side steps the suspension Dynamic response pipes can contact the deployable side sktep bracket. This coindition can give a knowcking noise when the vehicle is in service.
- [SSM65917](/bulletins/10206582.md), 2022-01-18, Service bulletin: SUSPENSION. Dynamic Response Pipes contacting Deployable Side step bracket \- When fitting the deployable side steps the suspension Dynamic response pipes can contact the deployable side sktep bracket. This coindition can give a knowcking noise when the vehicle is in service.
- [SSM64937](/bulletins/10206493.md), 2022-01-18, Service bulletin: SUSPENSION; EQUIPMENT. Air Suspension System Compressor Operation. A customer may report a light thud type sound from the rear load space area shortly after the enginef is started and normal suspension ride height achieved.

JSON: [/v1/bulletins/10100976](/v1/bulletins/10100976)

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