# Service bulletin SSM75178

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: 10185371
- Published by NHTSA: 2021\-01\-08
- Manufacturer's number: SSM75178
- Manufacturer's date: 2020\-12\-11
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; EQUIPMENT

## NHTSA's summary

Rear Harness Clash with Rear Exhaust Heat Shield and Rear Stabilizer Bar

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185371-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185371-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame, Engine, Equipment and accessories, Exhaust and emissions

## Vehicles listed

- 2020 to 2021 LAND ROVER DEFENDER

## Recalls for the same vehicles and component

- [2024739](/recalls/tc/2024739.md), 2024-12-05: Accessories
- [2024599](/recalls/tc/2024599.md), 2024-10-10: Engine
- [23V044000](/recalls/nhtsa/23V044000.md), 2023-02-02: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
- [21V584000](/recalls/nhtsa/21V584000.md), 2021-07-29: CHILD SEAT:VEHICLE LATCH ANCHOR; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- [2021353](/recalls/tc/2021353.md), 2021-06-03: Engine

## Other bulletins for the same vehicles and component

- [SSM76493 \- 25SEP26](/bulletins/11038293.md), 2026-10-07, Other: STRUCTURE:BODY. Accessory Wheel Arch Protection \- Gaps Present Between Protection And Vehicle Body
- [N892v3 \- 01MAY26](/bulletins/11033241.md), 2026-06-03, Service bulletin: ENGINE. Arduous customer drive cycles have been found to accelerate the degradation of engine oil, leading to generation of engine oil sludge deposits in high pressure engine oil galleries of the engine and inside the Continuous Variable Valve Lift \(CVVL\) unit.
- [Defender\_N811 02\-20\-2026](/bulletins/11029848.md), 2026-03-06, Other: ENGINE. Door Zone Module \- Quiescent Drain
- [SSM000017\-19DEC25](/bulletins/11027539.md), 2026-01-09, Other: ENGINE. Coolant fan may continue running at high speed after ignition shut\-off
- [TUCC\_JUL2025\_16](/bulletins/11021642.md), 2025-08-06, Other: ENGINE. The low coolant light may be illuminated/there may be a coolant leak from the engine area.
- [JLRTB02133NAS](/bulletins/11020199.md), 2025-07-06, Service bulletin: STRUCTURE:BODY. Tapping Noise From A\-Pillar Area
- [JLRTB02058NAS2](/bulletins/11020198.md), 2025-07-06, Service bulletin: STRUCTURE:BODY. Tapping Noise From A\-Pillar Area
- [SSM76317ATT \- 28APR25](/bulletins/11017768.md), 2025-05-05, Other: ENGINE. Engine Will Crank, No Start When At Operating Temperature
- [SSM76317 \- 28APR25](/bulletins/11017767.md), 2025-05-05, Other: ENGINE. Engine Will Crank, No Start When At Operating Temperature
- [TUCC\_APR2025\_20](/bulletins/11017741.md), 2025-05-05, Other: ENGINE. Engine replacement under warranty.

JSON: [/v1/bulletins/10185371](/v1/bulletins/10185371)

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