2020 Land Rover Range Rover SWB

**Component/System:** 48V Mild Hybrid Electric Vehicle system, including the DC/DC converter subject to JLR recall D126, MHEV battery/Battery Energy Control Module, starter generator/alternator system, 12V charging system, telematics control module, and related vehicle communication/electrical modules. The vehicle and components are available for inspection upon request. **Description of Complaint:** My 2020 Land Rover Range Rover P400 MHEV, VIN [XXX], experienced serious electrical and high-voltage/MHEV system failures involving the 48V mild-hybrid system and DC/DC converter system. Before the original failure, the vehicle displayed the warning message **“High Voltage Shutdown Not Possible — System Live.”** The warning would appear on the instrument cluster while driving. The vehicle later displayed **“Stop Safely — Electrical Fault Detected.”** The vehicle then shut down while in operation, and steering assist was lost/steering became locked or extremely difficult to control. This created a serious safety risk because the vehicle lost power/drive functionality and steering assistance while being operated. The vehicle was taken to Jaguar Land Rover Parsippany for the D126 DC/DC converter recall/interim repair. The DC/DC converter is part of the 48V MHEV system and manages power transfer between the 48V and 12V electrical systems. After the D126-related repair, the vehicle would not start at pickup and had to be jump-started. The dealer later diagnosed a telematics control module issue/parasitic draw, but the vehicle continued to have electrical and high-voltage warnings. After the interim DC/DC repair, the **“High Voltage Shutdown Not Possible — System Live”** warning returned while driving. The malfunction indicator/check engine light also came on. Jaguar Land Rover Parsippany confirmed fault codes INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Land Rover Range Rover 3.0. The contact received notification of NTHSA Campaign Number: 26V248000 (Electrical system) however, the part to do the recall repair was not yet available. The local dealer was contacted but was not able to do repairs due to remedy not being provided as of yet by manufacturer The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had stated that failure was experienced. The contact stated that while driving at an undisclosed speed, unknowing vehicle warning light illuminated and vehicle stalled. The failure mileage was approximately 50,000.

The contact owns a 2020 Land Rover Range Rover. The contact received notification of NHTSA Campaign Number: 26V248000 (Electrical System); however, the part to do the recall repair was unavailable. The dealer was contacted, and the contact was informed that the parts were unavailable. The manufacturer was not contacted. The contact had not experienced a failure.

The contact owns a 2020 Land Rover Range rover 3.0. The contact stated while driving on the highway heard loud bang, no warning lights illuminated, continued to drive. white grayish Smoke coming from underneath the vehicle and a burning oil smell. There was also a lot of oil spots visible underneath the vehicle. Pulled off the road. The vehicle was towed to the dealer where it was diagnosed with engine failure caused by timing components. The vehicle was not repaired. The manufacturer was notified of the issue. The approximate failure mileage was 60,000.

Loss of all driving power. Gave fail code of Battery fail. We relpaced the battwry and still didnt work. Then were told we needed to replace the alternator. Replaced alternator and still failed. Now being told that we need to replace the dc dc converter...we have paid for the part but that part is on back order and we have now been without a vehicle for 6 months

On March 11, 2026, the vehicle's DC/DC Converter failed completely without warning. It was towed to the Land Rover of Monmouth (NJ) where this failure was confirmed. The failure of the DC/DC converter resulted in the vehicle going completely "dead" while driving with my wife and children. There was no warning. Fortunately for my family and I, it occurred on a side street by my home and did not occur on a highway or other busy road. Had this occurred on a highway or busy road, this would have absolutely put our lives in danger. As noted, the failure of the DC/DC converter was confirmed by the Land Rover of Monmouth (NJ) authorized dealership (I have a video from the dealership stating and confirming the failure). There were zero warnings at the time it occurred; it just lost power and shut down. Based on my research after this incident, it appears to be a pervasive problem with Land Rover and while there appear to be active recalls for certain Land Rover models, inexplicably, there is no current recall for this particular model. My wife and I are very concerned that even if/when it is repaired, this will happen again. This is the primary vehicle my wife uses for transportation with our young children and I am extremely afraid of the risk that this poses to their lives. I've notified the dealership from where I purchased it and was directed to contact Land Rover USA. I have not heard back from Land Rover USA. This well-documented, pervasive defect puts lives at risk and is extremely dangerous. As an attorney, I find Land Rover's knowledge of this frequent and extensive issue -- while only having a limited recall and not providing any information to owners of other Land Rover vehicles -- is a reckless disregard for the safety of others and creates an unreasonable risk of harm to others, like my family.

I am filing this complaint regarding my 2020 Range Rover Full Size Plug-In Hybrid, which has been inoperable for over three months due to ongoing fault codes and software-related issues. The vehicle has been at an authorized Land Rover dealer for an extended period. The dealer has confirmed they are unable to proceed without direction or software updates from Jaguar Land Rover corporate engineering. For the last 60+ days, the issue has been repeatedly escalated between the dealer and corporate engineering with no actionable resolution, no repair authorization, and no clear timeline provided. I have even reached out customer relationship center file customer compliant which has not been responded to by LRNA/HQ. My case number is CASE:[XXX] Vehicle Background: •Vehicle would not charge beyond 80%. I scheduled an appointment with the local dealers to inspect. LR: Identified a coolant issue within the high voltage system. oRepair: We were able to get covered by LR per a service bulletin; however, the repair process took over a month. •November Subsequent issue: Check engine light appeared along with a “rotten egg” smell after charging. I returned the vehicle to the dealership. oRepair: LR identified power distribution box resistor out of target range with resistance causing over-charging. This took a month and believe a software issue may have caused this as well as cannot happen on non-plug in. oReplacement of both the power distribution box and battery cost $1,471. •December: Picked up the car and parked it for a week while out of town. The first week back I drove to work and the check engine light came on again. I have not yet received the vehicle back and it continues to throw powertrain codes. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Upon having my tires balanced and aligned I was informed that my fuel tank is rusting out. I have included pictues below for reference, I have attempted to have the dealer and Land Rover replace the fuel tank but they refuse to do so even though there is a 6-year Corrosive Warranty in place.

On May 25th, 2025 around noon, I was backing up my Range Rover out of the garage to go and buy some items, after I exited the garage I felt that the car had bumped an item in the back, I did not see anything on the back view camera because sometimes it is slow to load up and also I did not hear any warning noises from the rear sensors, I moved the car forward trying to avoid further bump and to my knowledge I put the rotary gear selector in parking mode and got out of the car, at that point the car started moving backward, and I got stuck between the open door and the backward moving car, I tried to put my hand on the break to stop the car and I manage to stop the car at the time when the car hit a bench under the tree, and I got pinned between the open door and the bench that was stopped by the tree. I had a major trauma to the right side of my body, I was rushed to the nearest hospital, when it was decided that I need to be transported to a larger facility via ambulance. Radiology tests showed a large hematoma on the right side of my body between the rib cage and the pelvis along with a flank hernia with pertruding of the right colon. My home security camera caught the incident, unfortunately, I am unable to upload the file because your system does not allow.Mov type of files.

There is a current recall from January of last year that is affecting surround view cameras not currently working. My vehicle is experiencing the same issue but is not showing listed in the recall. Due to cameras not working it puts my safety and other at risk as I am not able to see when backing up or the surrounding areas especially when towing. A dealership may be looking into it soon as this issue just began. No other warning the cameras just don’t turn or are blurry, fuzzy and flicker. This includes all cameras. Front sides and rear.

I have 2020 Range Rover HSE. Its a known issue with the steering knuckle cracking causing a safety issue. JLR is not including my VIN as part of the recall. This issue is affecting all years

the brakes failed to function while I drove. I almost hit the car in front of me. the brake booster was not functioning. the engine check light appeared suddenly, but with that other messages too, and also that was safe to continue to drive with caution. Just to mention two more messages that appeared on the display were: Stability control not available and Hill descent Control not available. I had to press extremely hard to break the car and of course I had to drive very slowly. I was cough of guard and almost hit a car in front of me at the traffic light. afterwards I just drove very slowly to my house. I checked the errors on my car and did research (I did not go to the dealership because they just extort money from you). I found out that the auxiliary battery failed. I replaced the battery and reset the system and the new battery information and that fixed the issue. I read on the Land Rover forums similar experience from many owners of this car. I believe there is a serious design flow because the low voltage of the auxiliary battery should not have caused the brake booster to malfunction while I drove. Just to mention that this auxiliary battery is an additional battery, (it looks like a motorcycle battery) and the main one is still healthy. And this is a hybrid (PHEV) car. Lots of source of energy to power important modules in the car which should not depend on the small auxiliary battery. Plus, the engine was running, meaning the alternator should be enough to power the modules that failed. I was very scared and happy that it was not my wife who drove the car. I have a report that was generated by the diagnostic tool that I use. A lot of errors popped up during that scary drive home. I attached the report I recorded from my diagnostic tool.