Jaguar Land Rover (JLR) has initiated a sweeping safety recall affecting more than 170,000 vehicles in the United States due to a critical defect in their mild-hybrid (MHEV) powertrains. The issue, which stems from a faulty electrical component, can lead to a sudden loss of drive power and exterior lighting a combination that presents a significant safety risk, particularly at night.
The Technical Failure
The recall centers on the DC-DC converter, a vital component in JLR’s 48-volt mild-hybrid system. According to documents filed with the National Highway Traffic Safety Administration (NHTSA), an internal failure in the boost control microchip can prevent the vehicle’s 12-volt battery from charging.
Without a consistent charge, the vehicle’s auxiliary systems quickly deplete the remaining power. The failure sequence is typically rapid:
- Initial Alert: A red dashboard warning reading “Stop Safely, Electrical Fault Detected” appears within 10 seconds of the converter failing.
- System Degradation: If the driver continues, secondary systems like lane-keep assist, stability control, and air conditioning begin to shut down.
- Total Power Loss: Eventually, the vehicle shifts itself into neutral, the engine cuts out, and the exterior lights fail, leaving the car immobile and potentially invisible to other motorists.
Affected Models
The recall population covers nearly every major nameplate in the JLR stable from the 2019 through 2024 model years. The Range Rover Sport and Land Rover Defender account for the largest portion of the affected units.
- Range Rover Sport: 2019–2024 (61,616 units)
- Land Rover Defender: 2020–2024 (53,644 units)
- Range Rover: 2020–2024 (34,930 units)
- Land Rover Discovery: 2021–2024 (6,323 units)
- Range Rover Velar: 2021–2024 (5,304 units)
- Jaguar F-Pace: 2021–2024 (4,449 units)
- Range Rover Evoque: 2020–2023 (2,994 units)
- Jaguar E-Pace: 2021–2022 (528 units)
- Land Rover Discovery Sport: 2020 (381 units)
Timeline and Response
While JLR began investigating reports of DC-DC converter failures as early as 2024, the company initially characterized the issue as a “customer satisfaction” concern rather than a safety risk. However, after an engineering task force conducted extensive simulation and physical testing in early 2026, and following consultation with the NHTSA, the automaker upgraded the situation to a formal safety recall.
As of late April 2026, JLR has identified nearly 6,000 warranty claims related to the issue but has reported no accidents or injuries.
Next Steps for Owners
Currently, JLR does not have a permanent remedy for the defect. The company is working on a revised specification for the DC-DC converter.
- Notification: Owners can expect to receive an interim notification letter starting June 12, 2026.
- Interim Advice: If you see the “Electrical Fault” warning on your dashboard, JLR advises pulling over to a safe location immediately.
- Information: Owners can check their VIN on the NHTSA website or contact their local JLR retailer for updates on the repair schedule.
