Seeing a large luxury SUV shut down suddenly, engine and headlights included, is bound to worry any driver. That’s the risk highlighted in a new recall campaign targeting recent Jaguar and Land Rover models. In the United States, authorities were alerted to power cuts on SUVs equipped with 48V mild-hybrid systems. At the heart of the issue, an electrical module can fail under load and cause a loss of traction and exterior lighting.
According to documents filed with the National Highway Traffic Safety Administration, the American agency, Jaguar Land Rover is issuing a recall. Nearly 23,677 SUVs outfitted with a 48V hybrid system are affected by a defect that can cut engine power and lights. This batch corresponds to a portion of the nine model families already recalled in April 2026 for a related issue. For Range Rover, Defender, or Jaguar F‑Pace owners, a question arises. Is their SUV included in this Jaguar Land Rover recall, and what can really happen behind the wheel?
Which Jaguar Land Rover SUVs are named in this new recall?
In the United States, this campaign carries the reference NHTSA 26V599 and the internal code JLR E008. It was filed on September 17, 2026. It complements an initial recall launched in April, numbered 26V248, which affected about 170,169 vehicles. The first episode targeted older-generation converters, with a hardware defect. The new batch concerns second‑generation DC‑DC converters produced between March 2019 and June 2024. The two campaigns do not overlap on serial numbers, but they target the same electrical component.
Nine mild-hybrid SUV families are affected, all equipped with the same 48 V setup. At Land Rover, the recall covers the Discovery Sport, Range Rover Evoque, Range Rover, and Defender latest-gen models. It also includes the Discovery and Range Rover Velar produced between 2021 and 2024. At Jaguar, the affected E‑Pace and F‑Pace SUVs correspond to model years 2021 through 2024. The main volumes are 10,973 Range Rover Sport, 8,100 Land Rover Defender, 3,849 Range Rover, and 552 Discovery. Other models account for only three Discovery Sport, 35 Range Rover Evoque and 76 Range Rover Velar in this new campaign. For Jaguar, only 79 F‑Pace and ten E‑Pace appear in the tables provided to the NHTSA. Between April 2024 and September 2026, Jaguar Land Rover logged 393 claims or reports related to this defect. NHTSA documents indicate that no crashes, injuries, or fires have been reported to date. For now, this campaign targets vehicles registered in North America. There are no details provided about Europe or France at this time.
Is a 48 V DC-DC converter to blame, and what should owners do?
On these models, the DC-DC converter links the 48 V battery to the car’s 12 V electrical system. It powers power steering, lighting, climate control, and many controllers when electrical demand increases. The documents submitted to the NHTSA describe a risk of overloading the converter due to insufficient charge balancing. The NHTSA materials note an AI-assisted analysis that identified a software bug that can prevent the unit from starting properly. If a failure occurs, warning messages tell the driver to pull over as soon as possible. When the 12 V battery stops being recharged, the SUV can lose traction and coast to a stop. American documents also report a gradual dimming of exterior lights as voltage drops, which can result in exterior lighting going out toward the end of the sequence. On highways or at night, such a scenario understandably raises the risk of a collision with other road users.
Dealerships will perform a complimentary software update to fix the bug and improve how electrical loads are managed within the hybrid system. The update will also enhance the load-management capabilities of the hybrid system. The new software adds a degraded “limp home” mode designed to retain a minimal set of functions even if the converter goes offline. According to the schedule provided to the U.S. agency, owner notifications will begin on November 13, 2026. In the meantime, owners can check whether their vehicle is affected via the NHTSA or the Jaguar Land Rover network.
