2020 Land Rover Defender

The contact owns a 2020 Land Rover Defender. The contact stated that while starting the vehicle, the check engine warning light illuminated. The following day, the contact’s spouse started the vehicle, and the message “High Voltage Shutdown Not Possible – Live System” was displayed. The contact stated that after an inspection, DTC: P0A7B was retrieved. The contact received notification of NHTSA Campaign Number: 26V248000 (Electrical System); however, the part was not yet available. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The approximate failure mileage was 48,000.

Our 2020 Defender's halo light on the driver's side has become inoperable & poses a safety hazard. After researching this issue, it appears that this has been reported widely online. This malfunctioning halo light renders overall lighting very dim at night, creating a safety hazard for my vehicle & other drivers on the road. While looking online this is a rampant problem with this model, with the dealers wanting to charge & exorbitant cost of $4K+ I am writing to request that the manufacturer assume full responsibility & costs for repairing this safety related lighting defect at a local dealership. Properly functioning exterior lighting is an essential safety feature of any vehicle. This malfunction affects my visibility. We purchased this vehicle with the reasonable expectation that critical safety equipment would function properly & that the manufacturer would stand behind defects involving safety issues. I believe it is unreasonable for me to be expected to bear the cost of diagnosis, parts or repair as this is an inherent lighting system issue. I am therefore requesting that the manufacturer cover 100% of all costs. This is a safety issue, not a cosmetic concern & I strongly urge the manufacturer to treat it accordingly. The halo light has been out for a few weeks; there were no warnings that the light was out just noticed dim lighting & neighbor while passing on the road mentioned it.

I own a 2020 Land Rover Defender 110 HSE, and both of the vehicle’s daytime running lights (DRLs) have failed. The first DRL failed at approximately 63,000 miles, and the second DRL failed at approximately 68,000 miles. This appears to be a known and recurring issue with the DRL/signature lighting system on 2020 Land Rover Defenders, yet these failures commonly occur outside of the vehicle’s original warranty period, leaving owners responsible for extremely expensive repairs or replacement of an entire headlight assembly for what appears to be a failure of a small electronic component. This is a safety concern, not simply an aesthetic or convenience issue. When one of the signature DRLs fails, the lighting appearance of the vehicle can make it appear as though a headlight or other required exterior light is not functioning properly. This can make the vehicle less conspicuous to other drivers and can also result in confusion or concern from law enforcement. A vehicle with one side of its DRL signature illuminated and the other side completely dark can appear to have a lighting malfunction, potentially resulting in the driver being pulled over or cited. The fact that both DRLs on my vehicle have now failed independently at approximately 63,000 and 68,000 miles is particularly concerning and suggests a recurring component or design defect rather than an isolated failure. Owners should not be expected to replace an entire headlight assembly at significant expense because of a predictable failure of the DRL electronics. I am requesting that NHTSA investigate the frequency and cause of DRL failures on 2020 Land Rover Defenders and determine whether a safety-related defect exists and whether Land Rover should be required to provide a permanent remedy, particularly given that these failures can occur after the original warranty has expired. I am also concerned about the potential impact of this recurring failure on vehicle inspection and registration requirements.

The contact owns a 2020 Land Rover Defender. The contact stated that while operating the vehicle, the check engine warning light illuminated, and the vehicle was driving roughly. The contact stated that the vehicle hesitated while accelerating and the vehicle felt as if the brake pedal was being depressed. The vehicle was taken to the local mechanic, and the contact was informed that the coolant hose attached to the radiator and the coolant pipes needed to be replaced. The vehicle was repaired; however, the failure reoccurred approximately one month later. The front driver’s side headlight had failed and was replaced by the local dealer. The contact stated that one month later, the front passenger’s side headlight failed. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 40,000.

My 2020 Land Rover Defender 48V Mild Hybrid Electric Vehicle (MHEV) experienced a check engine light and hybrid electrical failure. Diagnostics by an authorized Jaguar Land Rover dealer confirmed code P0A1F-96 (Battery Energy Control Module / BECM internal component failure). This failure relates directly to an active, global safety recall issued by JLR (NHTSA Campaign 26V248 / JLR Recall D126) regarding DC-DC converter failures in MHEV vehicles. According to JLR recall documentation, a microchip failure in the DC-DC converter causes a total loss of 12V system charging, leading to electrical warnings and a sudden loss of motive power/propulsion while driving. CHRONIC CHARGING SYSTEM FAILURE: This vehicle has suffered from unresolved, long-term 12V charging system degradation caused by this MHEV subsystem defect. This chronic lack of proper charging has directly destroyed three (3) primary 12V main batteries and the emergency telematics (SOS) backup battery over a 4-year period. Replacing these auxiliary batteries failed to fix the underlying issue because the MHEV system/DC-DC converter continuously fails to maintain adequate charging across vehicle systems. This continuous voltage collapse eventually triggered the permanent BECM hardware lockout code (P0A1F-96). SAFETY HAZARD: A sudden loss of 12V system charging and subsequent loss of propulsion on public roads or at highway speeds presents a severe crash hazard to occupants and other motorists. STATUS & DEALER REFUSAL: An authorized JLR dealer confirmed code P0A1F-96 and documented "Pending Recall Campaign D126ADM2" on the official service invoice. Despite this being an acknowledged, safety-related defect in the MHEV system leading to loss of drive power, JLR North America and the dealer refuse to repair or grant goodwill coverage under the active safety recall framework, quoting over $3,400 out-of-pocket. The vehicle is available for inspection.

I own a 2020 Land Rover Defender and have experienced a failure of the LED halo ring/daytime running light within the headlight assembly. The LED ring stopped functioning even though the headlight assembly has not been damaged, modified, or involved in any accident. This failure affects the vehicle's visibility and appearance and may create a safety concern because the daytime running light is no longer operating as intended. I contacted the dealership regarding the issue, but I was informed that the repair is not covered under warranty, despite similar LED halo and DRL failures being reported by other Defender owners. I am requesting that this issue be investigated, as it appears to be a defect in the headlight assembly rather than normal wear and tear.

The driver-side headlight assembly failed unexpectedly on my 2020 Land Rover Defender 110. This appears to be a known and recurring issue with this vehicle model involving the headlight or related electrical/control system. The failed component and vehicle are available for inspection upon request. The failure significantly reduced nighttime visibility and made the vehicle less visible to oncoming traffic and other drivers. Operating the vehicle with only one functioning headlight created a hazardous driving condition, especially during nighttime driving, adverse weather, and on poorly lit roads. This increased the risk of an accident for myself, passengers, and other motorists. The issue was reproduced and/or confirmed by the dealership/service center after inspection. The failure appears consistent with similar complaints reported by other Defender owners regarding headlight malfunction issues. The vehicle/component has been inspected by the dealership/service center. No inspection has been conducted by police or insurance representatives at this time. There were no warning lamps or messages prior to the failure.