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Service bulletin N955

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 id11012617
Published by NHTSA2025-01-08
Manufacturer's numberN955
Manufacturer's date2024-12-13
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

A quality concern has been identified where there may be a missing fixing on the Mild Hybrid Electric Vehicle (MHEV) battery harness which is away from design specification.

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 RANGE ROVER2024
LAND ROVER RANGE ROVER SPORT2024

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

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
D100 Emission Recall2026-10-07. Emissions. D100 Emission Recall Owner Letter
D101 Emission Recall2026-10-07. Emissions. D101 Emission Recall Owner Letter
D103 Emission Recall2026-10-07. Emissions. D103 Emission Recall Owner Letter
SSM76110 - 21AUG262026-09-08. Other. Vehicles on display e.g. in a showroom whilst being supported by a showroom 12v support unit, these vehicles require an additional fuse to be removed to prevent the MHEV (48v) battery draining and causing the cells to drop to a non recoverable level. Failure to follow this process will void the warranty cover on this battery.
SSM76110 - 19AUG262026-09-08. Other. Vehicles on display e.g. in a showroom whilst being supported by a showroom 12v support unit, these vehicles require an additional fuse to be removed to prevent the MHEV (48v) battery draining and causing the cells to drop to a non recoverable level. Failure to follow this process will void the warranty cover on this battery.
D103 - 21MAY262026-06-03. Service bulletin. Due to inadequate penetration of welding between the cells, the battery’s capacity and therefore the vehicle’s electric range may be depleted below the design intent condition.
D101 - 21MAY262026-06-03. Service bulletin. Due to inadequate penetration of welding between the cells, the battery’s capacity and therefore the vehicle’s electric range may be depleted below the design intent condition.
SSM76451 - 23APR262026-05-06. Other. Where vehicles are supported by a 12V Battery Support Unit (BSU) and repeatedly interacted with while the engine is not running, the 48V battery may, in the absence of intervention, discharge to a non‑recoverable state.
SSM76411 - 10MAR262026-04-06. Other. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
TUCC_FEB2026_352026-03-04. Other. There is a concern with the 48Volt charging system(DC/DC) with the vehicle.