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Service bulletin SSM75491

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10199805
Published by NHTSA2021-08-04
Manufacturer's numberSSM75491
Manufacturer's date2021-07-29
NHTSA componentELECTRICAL SYSTEM; POWER TRAIN

NHTSA's summary

Customer may report engine fan running at full duty following a PCM update.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline

Vehicles listed
LAND ROVER RANGE ROVER2021
LAND ROVER RANGE ROVER SPORT2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V5990002026-09-17. ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER
26V2480002026-04-17. ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER
23V0310002023-01-26. BACK OVER PREVENTION:WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:SOFTWARE
20V5850002020-09-24. ELECTRICAL SYSTEM:SOFTWARE; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
N861 Range Rover 18SEP262026-10-07. Other. Malfunction Indicator Lamp (MIL), loss of start/stop functionality and no communication during diagnostic sessions.
N900 Range Rover 21AUG262026-09-08. Other. Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster. The root cause of the symptoms is the catalytic converter over temperature.
N861 Range Rover 17JUL262026-08-05. Other. Mild Hybrid Electric Vehicle (MHEV) Battery Offline
N900 Range Rover 16JUN262026-07-08. Other. Customers may experience loss of power, rattling from underside of the vehicle and the Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster.
N861 Range Rover 16JUN262026-07-08. Other. 48V Mild Hybrid Electric Vehicle (MHEV) battery enters an offline state and no longer communicates or functions as intended. This can result in illumination of the Malfunction Indicator Lamp (MIL) ,loss of start/stop functionality and no communication during diagnostic sessions.
N861 Range Rover 15MAY262026-06-04. Other. 48V Mild Hybrid Electric Vehicle (MHEV) battery enters an offline state and no longer communicates or functions as intended.
N861 Range Rover 17APR262026-05-07. Other. 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,
N900 Range Rover 20MAR262026-04-07. Other. Loss of power, rattling from underside of the vehicle and the Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster. The root cause of the symptoms is the catalytic converter over temperature. The calibration of the exhaust sound tuning feature allows for too many repeated activations in a short period of time, resulting in catalytic converter over temperature and leading to Diagnostic Trouble Codes (DTC) P0420 and P0430 being stored in the Powertrain Control Module (PCM).
SSM76411 - 10MAR262026-04-06. Other. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
Range Rover_N900 02-20-202026-03-06. Other. Loss of power, rattling from underside of the vehicle and the Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster.