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Other SA Owner Letter N811

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)
TypeOther
NHTSA id11016657
Published by NHTSA2025-04-07
Manufacturer's numberSA Owner Letter N811
Manufacturer's date2025-03-06
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Door zone module - quiescent drain

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

Vehicles listed
LAND ROVER DEFENDER2021, 2022
LAND ROVER DISCOVERY2021, 2022
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
26V5990002026-09-17. ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER
26V2480002026-04-17. ELECTRICAL SYSTEM:PROPULSION SYSTEM:DC/DC CONVERTER
20213812021-06-17. Electrical
21V4570002021-06-17. ELECTRICAL SYSTEM:12V/24V/48V BATTERY
21V4240002021-06-03. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

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
N811 Discovery 15MAY262026-06-04. Other. Door Zone Module - Quiescent Drain
N811 Defender 15MAY262026-06-04. Other. Door Zone Module - Quiescent Drain
N811 Discovery 17APR262026-05-07. Other. Door Zone Module - Quiescent Drain
N811 Defender 17APR262026-05-07. Other. Door Zone Module - Quiescent Drain
N869 Range Rover 20MAR262026-04-07. Other. Software Over The Air (SOTA) updates are failing to complete.
N869 DISCOVERY 20MAR262026-04-07. Other. Software Over The Air (SOTA) updates are failing to complete.
N811 Defender 20MAR262026-04-07. Other. Door Zone Module - Quiescent Drain
SSM76411 - 10MAR262026-04-06. Other. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
Discovery_N811 02-20-20262026-03-06. Other. Door Zone Module - Quiescent Drain
TUCC_FEB2026_352026-03-04. Other. There is a concern with the 48Volt charging system(DC/DC) with the vehicle.