# Service bulletin SSM74968

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: 10178134
- Published by NHTSA: 2020\-08\-07
- Manufacturer's number: SSM74968
- Manufacturer's date: 2020\-07\-31
- NHTSA component: EQUIPMENT; POWER TRAIN; POWER TRAIN:DRIVELINE

## NHTSA's summary

Range Rover \(L405\), Range Rover Sport \(L494\), Discovery \(L462\), V8 S/C 5.0L PETROL and V8 N/A 5.0L PETROL Electronic Locking Rear Differentials \- Noisy

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178134-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178134-9999.pdf)

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

## Components

Equipment and accessories, Transmission and driveline

## Vehicles listed

- 2017 to 2020 LAND ROVER DISCOVERY
- 2013 to 2020 LAND ROVER RANGE ROVER
- 2014 to 2020 LAND ROVER RANGE ROVER SPORT

## Recalls for the same vehicles and component

- [20V586000](/recalls/nhtsa/20V586000.md), 2020-09-24: EQUIPMENT:OTHER:LABELS; TIRES
- [2015424](/recalls/tc/2015424.md), 2015-09-24: Accessories
- [2014436](/recalls/tc/2014436.md), 2014-10-03: Accessories

## Other bulletins for the same vehicles and component

- [N861 Range Rover 18SEP26](/bulletins/11038355.md), 2026-10-07, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\), loss of start/stop functionality and no communication during diagnostic sessions.
- [N881 Discovery 18SEP26](/bulletins/11038354.md), 2026-10-07, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
- [N881 Range Rover 18SEP26](/bulletins/11038353.md), 2026-10-07, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
- [N900 Range Rover 21AUG26](/bulletins/11037146.md), 2026-09-08, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) illuminated on the instrument cluster. The root cause of the symptoms is the catalytic converter over temperature.
- [N881 Range Rover 21AUG26](/bulletins/11037145.md), 2026-09-08, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
- [N881 Discovery 21AUG26](/bulletins/11037144.md), 2026-09-08, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
- [N881 Range Rover 17JUL26](/bulletins/11035877.md), 2026-08-05, Other: POWER TRAIN. Powertrain Control Module \(PCM\) Software Update
- [N881 Discovery 17JUL26](/bulletins/11035876.md), 2026-08-05, Other: POWER TRAIN. Powertrain Control Module \(PCM\) Software Update
- [N900 Range Rover 16JUN26](/bulletins/11034940.md), 2026-07-08, Other: POWER TRAIN. Customers may experience loss of power, rattling from underside of the vehicle and the Malfunction Indicator Lamp \(MIL\) illuminated on the instrument cluster.
- [N881 Range Rover 16JUN26](/bulletins/11034938.md), 2026-07-08, Other: POWER TRAIN. Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off

JSON: [/v1/bulletins/10178134](/v1/bulletins/10178134)

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