Service bulletins for the 2025 Land Rover Defender
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.
190 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Electrical system are shown. Show all
| SSM76110 - 21AUG26 | 2026-09-08. Other. ELECTRICAL SYSTEM. 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 - 19AUG26 | 2026-09-08. Other. ELECTRICAL SYSTEM. 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. |
| SSM76451 - 23APR26 | 2026-05-06. Other. ELECTRICAL SYSTEM. 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 - 10MAR26 | 2026-04-06. Other. ELECTRICAL SYSTEM. Smart Key Deactivated message on instrument cluster and unable to start their vehicle |
| TUCC_FEB2026_35 | 2026-03-04. Other. ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system(DC/DC) with the vehicle. |
| TUCC_FEB2026_34 | 2026-03-04. Other. ELECTRICAL SYSTEM. There is a concern/fault with the 48Volt MHEV system. |
| TUCC_FEB2026_33 | 2026-03-04. Other. ELECTRICAL SYSTEM. 12V STARTUP BATTERY FLAT - MILD HYBRID ELECTRIC VEHICLE (MHEV) |
| 252602.027 - 12FEB26 | 2026-03-04. Service bulletin. ELECTRICAL SYSTEM. Once the vehicle is powered down via ignition cycle, it may not restart depending on remaining residual charge. |
| TUCC_JAN2026_25 | 2026-02-06. Other. ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system(DC/DC) with the vehicle. |
| TUCC_DEC2025_39 | 2026-01-08. Other. ELECTRICAL SYSTEM. A battery warning light on and or electrical system failure message is displayed on instrument cluster. |
| TUCC_JUL2025_32 | 2025-08-07. Other. ELECTRICAL SYSTEM. Passive Entry doesn't respond intermittently to access car. Have to use key buttons to get in. |
| TUCC_JUN2025_43 | 2025-07-06. Other. ELECTRICAL SYSTEM. The SOTA Campaign number displayed in the software update screen in the vehicle is only updated when a SOTA campaign completes successfully. |
| TUCC_JUN2025_27 | 2025-07-06. Other. ELECTRICAL SYSTEM. Vehicle 12V Circuit Recovery |
| TUCC_JUN2025_26 | 2025-07-06. Other. ELECTRICAL SYSTEM. If the startup battery test plan finds a fault, you will be granted AutoFRED approval and may proceed with repairs. |
| TUCC_JUN2025_7-14 | 2025-07-06. Other. ELECTRICAL SYSTEM. If the startup battery test plan finds a fault, you will be granted AutoFRED approval and may proceed with repairs. |
| TUCC_MAY2025_15 | 2025-05-14. Other. ELECTRICAL SYSTEM. AUTOFRED APPROVAL – SBU ( STARTUP BATTERY UNIT ) |
| TUCC_APR2025_23 | 2025-05-05. Other. ELECTRICAL SYSTEM. If there are stored codes, please run a workflow based on relevant symptom dropdowns. As the workflow is run, you will be prompted with a test plan titled “Startup Battery Test – Li-ion.” Please run this test plan. If the test plan finds a fault, you will be granted AutoFRED approval and may proceed with repairs. |
| TUCC_APR2025_18 | 2025-05-05. Other. ELECTRICAL SYSTEM. Leaking windshield that caused the water ingress on the electrical component. |
| SFCC_MAR2025_45 | 2025-04-07. Other. ELECTRICAL SYSTEM. 'Stop Safely Electrical Fault Detected' warning message displayed in the message center. |
| SSM76280 | 2025-03-07. Other. ELECTRICAL SYSTEM. JLR Engineering investigations have identified that customers are experiencing a red 'Stop Safely Electrical Fault Detected' warning message displayed in the message center, due to the 12V system not providing the correct electrical support. |
| SSM76173 | 2024-09-06. Other. ELECTRICAL SYSTEM. MHEV DCDC internal failure with warning message |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.