2022 Land Rover Defender: sudden loss of power

Filed Sep 30, 2026 · Electrical, Engine · CA

This is a serious concern and safety condition. In several occasions while driving at a range from 45-70mph the engine loses power. To the point where it has felt like it will shut off. The inside lighting of the dash dims while the vehicle is in loss of engine power.

Filed Jul 22, 2026 · Airbags, Electrical · CA

My vehicle is losing power from the battery showing battery needs to recharge and its full charged have to turn interior lights off

Filed Apr 14, 2026 · Electrical · CA · crash

On 4/2/2026, my DC to DC converter failed in my 2022 Landrover Defender (owned 3 months, purchased pre-owned from dealer), which short-circuited both my 12V battery and my telemetric safety battery (location services, and emergency calls). The vehicle lost all power, completely malfunctioned electrically losing ability to accelerate, power steering, and everything went dark in the vehicle while driving on a highway. I immediately tried to get it to the shoulder but it lost momentum and stopped in the lane, with cars and semis coming around a blind corner at speed. It was a harrowing experience, the car started to roll backwards (on a slight incline, as it was a mountain pass) and a semi truck had to assist in stopping the vehicle by skillfully, using his trailer to stop the vehicle. This created body damage to the entire side of my vehicle. The car then locked up completely, wheels were locked and tow truck had to drag it with a chain up on the bed. My son and I could have been killed, as traffic was coming around the bend at 60-65 mph and we were completely stopped and started rolling back towards the oncoming traffic. Several others could have been injured as my vehicle could have cause a major traffic collision. The issue has been reported to Jaguar Landrover customer service, reported to the dealership I bought the vehicle from and to the dealership who told me that it could help to drive the vehicle to charge the battery. The dealer where I towed the vehicle confirmed it was the DC to DC converter failure, confirmed that it fried or short-circuited both batteries which then caused the car to lose all power. The failure was confirmed by certified mechanics, and approved by an inspector for the extended warranty and repairs were made. There was an electrical fault warning on screen. One dealer told me to drive it to charge battery. This vehicle should be recalled to avoid safety issues.

Filed Mar 4, 2026 · Electrical · VA

The vehicle lost power after a warning that the battery was not recharging. I have a portable jump start battery. Tried to jump start it -- the battery would not hold a charge once cables disconnected. Had the vehicle towed to the dealer. I was told this is a DC-to-DC converter problem that is widespread across Defenders 20222-present. parts are unavailable.Being stuck in a vehicle with no power, absolutely dead, is scary and would have been a major problem if the electrics had gone out while driving.

Filed Feb 1, 2026 · Electrical, Transmission · CO

On January 25, 2026, while driving my 2022 Land Rover Defender 110 in Colorado on Interstate 70, the vehicle suddenly and completely lost power with no warning. There were no dashboard alerts, warning lights, or messages prior to the failure. The vehicle abruptly became disabled while traveling at highway speed, creating an immediate and serious risk of a crash, severe injury, or death to myself and other motorists. I was extremely fortunate to be able to safely maneuver the vehicle out of traffic and exit the highway. Given traffic conditions on I-70, this failure could easily have resulted in a major accident. The vehicle was undrivable and had to be towed to Flatirons Land Rover in Colorado on January 25, 2026. On January 26, 2026, after I had to repeatedly follow up with the dealership, I was informed that the failure was caused by a defective component related to the battery/electrical system. Although the repair is covered under warranty, the required part is on backorder, and I was advised the vehicle will be out of service for approximately six weeks. The dealership stated they cannot provide a loaner vehicle, leaving me without transportation. They said the dcdc converter and I don not understand and they did not explain well A sudden loss of power without warning at highway speeds represents a serious safety defect that puts drivers and the public at risk. I am concerned this defect may affect other vehicles and could lead to serious injuries or fatalities if not addressed.

Filed Jan 30, 2026 · Electrical · KY

Lost all power due to failure of DC/DC Converter, Part # 433123464 (or LR131043). This problem is widespread and the replacement parts are on backorder. Land Rover cannot provide an ETA for delivery of parts to dealerships as of 1/30/2026. This failure occurred immediately and the vehicle came to a complete stop while driving.