# Service bulletin NAS20.11.011

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: 10183924
- Published by NHTSA: 2020\-12\-07
- Manufacturer's number: NAS20.11.011
- Manufacturer's date: 2020\-11\-16
- NHTSA component: POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

## NHTSA's summary

A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range which may have a Powertrain Control Module \(PCM\) software calibration that does not adequately control levels of particulate mass and affected vehicles do not meet the regulated performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183924-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183924-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Transmission and driveline

## Vehicles listed

- 2020 LAND ROVER RANGE ROVER EVOQUE

## 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.
- [N861 Range Rover 21AUG26](/bulletins/11037143.md), 2026-09-08, Other: ENGINE. Mild Hybrid Electric Vehicle \(MHEV\) Battery Offline
- [SSM000017\-19DEC25](/bulletins/11027539.md), 2026-01-09, Other: ENGINE. Coolant fan may continue running at high speed after ignition shut\-off
- [TUCC\_JUN2025\_46](/bulletins/11020209.md), 2025-07-06, Other: POWER TRAIN. MIL on Instrument cluster.
- [Range Rover\_N861\_16MAY25](/bulletins/11019267.md), 2025-06-05, Other: POWER TRAIN. On certain 48V Mild Hybrid Electric Vehicle \(MHEV\) battery enters an offline state and no longer communicates or functions as intended. Malfunction Indicator Lamp \(MIL\) might be illuminated, loss of start/stop functionality and no communication during diagnostic sessions.
- [SSM76249ATT3](/bulletins/11015335.md), 2025-03-07, Other: ENGINE. Thermostat Housing Engine Coolant Leak
- [SSM76249ATT2](/bulletins/11015334.md), 2025-03-07, Other: ENGINE. Thermostat Housing Engine Coolant Leak
- [SSM76249ATT1](/bulletins/11015333.md), 2025-03-07, Other: ENGINE. Thermostat Housing Engine Coolant Leak
- [SSM76249](/bulletins/11015332.md), 2025-03-07, Other: ENGINE. Thermostat Housing Engine Coolant Leak
- [SFCC\_FEB2025\_45](/bulletins/11015273.md), 2025-03-07, Other: ENGINE. Low engine coolant lamp warning on instrument panel and/or coolant leak.

JSON: [/v1/bulletins/10183924](/v1/bulletins/10183924)

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