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Other TUCC_FEB2026_33

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 id11029576
Published by NHTSA2026-03-04
Manufacturer's numberTUCC_FEB2026_33
Manufacturer's date2026-02-13
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

12V STARTUP BATTERY FLAT - MILD HYBRID ELECTRIC VEHICLE (MHEV)

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
JAGUAR F-PACE2020, 2021, 2022, 2023, 2024, 2025
LAND ROVER DEFENDER2020, 2021, 2022, 2023, 2024, 2025
LAND ROVER DISCOVERY2020, 2021, 2022, 2023, 2024, 2025
LAND ROVER RANGE ROVER2020, 2021, 2022, 2023, 2024, 2025
LAND ROVER RANGE ROVER SPORT2020, 2021, 2022, 2023, 2024, 2025
LAND ROVER RANGE ROVER VELAR2020, 2021, 2022, 2023, 2024, 2025

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
23V5680002023-08-10. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
23V3930002023-06-01. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; LATCHES/LOCKS/LINKAGES:DOORS:LATCH
23V0310002023-01-26. BACK OVER PREVENTION:WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:SOFTWARE
22V5810002022-08-04. ELECTRICAL SYSTEM:ADAS
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)
20205332020-11-10. Electrical

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
N955 Range Rover 21AUG262026-09-08. Other. 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.
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.
N861 Range Rover 17JUL262026-08-05. Other. Mild Hybrid Electric Vehicle (MHEV) Battery Offline
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.
N811 Discovery 15MAY262026-06-04. Other. Door Zone Module - Quiescent Drain