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Service bulletin NAS21.12.008

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 id10206253
Published by NHTSA2022-01-08
Manufacturer's numberNAS21.12.008
Manufacturer's date2021-12-15
NHTSA componentPOWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE

NHTSA's summary

EMISSION RECALL N620 - ELECTRIC SUPERCHARGER - INTERMITTENT OPERATION

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

Engine, Equipment and accessories, Labels and manuals, Transmission and driveline

Vehicles listed
LAND ROVER DEFENDER2021
LAND ROVER DISCOVERY2021
LAND ROVER RANGE ROVER2021
LAND ROVER RANGE ROVER SPORT2021
LAND ROVER RANGE ROVER VELAR2021

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

Recalls for the same vehicles and component
20247392024-12-05. Accessories
20245992024-10-10. Engine
20231892023-03-30. Engine
23V2210002023-03-30. ENGINE AND ENGINE COOLING:COOLING SYSTEM
23V0440002023-02-02. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
21V5840002021-07-29. CHILD SEAT:VEHICLE LATCH ANCHOR; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20213532021-06-03. Engine
21V4240002021-06-03. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
20204492020-09-24. Label
20V5860002020-09-24. EQUIPMENT:OTHER:LABELS; TIRES

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 21AUG262026-09-08. 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.
N892v3 - 01MAY262026-06-03. Service bulletin. 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.
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).
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.
Defender_N811 02-20-20262026-03-06. Other. Door Zone Module - Quiescent Drain
SSM000017-19DEC252026-01-09. Other. Coolant fan may continue running at high speed after ignition shut-off
TUCC_AUG2025_332025-09-03. Other. Audible clunk noise from rear driveline during low-speed throttle inputs.