# Service bulletin N456NAS1

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: 10175605
- Published by NHTSA: 2020\-05\-29
- Manufacturer's number: N456NAS1
- Manufacturer's date: 2020\-05\-04
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range which require a Powertrain Control Module \(PCM\) software update.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175605-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175605-9999.pdf)

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

## Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

## Vehicles listed

- 2020 LAND ROVER RANGE ROVER
- 2019 to 2020 LAND ROVER RANGE ROVER SPORT

## Recalls for the same vehicles and component

- [23V031000](/recalls/nhtsa/23V031000.md), 2023-01-26: BACK OVER PREVENTION:WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:SOFTWARE
- [20V585000](/recalls/nhtsa/20V585000.md), 2020-09-24: ELECTRICAL SYSTEM:SOFTWARE; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

## Other bulletins for the same vehicles and component

- [N881](/bulletins/10252786.md), 2024-04-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. On certain 2017 model year to 2020 model year Land Rover and Range Rover vehicles the Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes \(DTC\) P0496\-00 may be stored in the Powertrain Control Module \(PCM\) .
- [N747v3](/bulletins/10252784.md), 2024-04-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. CLOSED ISSUE \- On certain 2017 to 2020 model year Land Rover vehicles the Malfunction Indicator Lamp \(MIL\) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off. Diagnostic Trouble Codes \(DTC\) P0496\-00 may be stored in the Powertrain Control Module \(PCM\).
- [SFCC\_MAR2024\_61](/bulletins/10252760.md), 2024-04-05, Service bulletin: POWER TRAIN; INTERIOR LIGHTING; UNKNOWN OR OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Lack of power, MIL light on, rough idle
- [SSM75976](/bulletins/10235440.md), 2023-05-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. AJ133 Engine Cooling Fan Operating At Maximum Speed Following A Powertrain Control Module SW Update
- [SFCC\_NOV2022\_29](/bulletins/10227335.md), 2022-12-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING; POWER TRAIN. Customer reports coolant level low message on dash or a coolant leak.
- [SSM75701](/bulletins/10210108.md), 2022-04-07, Service bulletin: EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. 8HP 8\-Speed Automatic Transmission replacements due to Automatic Transmission Fluid \(ATF\) contamination with coolant.
- [SSM71360](/bulletins/10206635.md), 2022-01-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Update.
- [SSM70258](/bulletins/10206633.md), 2022-01-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software Update.
- [LTB00619NAS1](/bulletins/10204785.md), 2021-12-13, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Technical Bulletin: Unable To Release Valet Mode Upon Correct PIN Entry onwards
- [SFCC\_NOV2021\_25](/bulletins/10204122.md), 2021-12-07, Service bulletin: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). Post 21A Update Apple CarPlay® Navigation Voice Guidance Not Heard

JSON: [/v1/bulletins/10175605](/v1/bulletins/10175605)

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