2020 Land Rover Defender

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.

NHTSA ID

11756348

Incident

Jun 14, 2026

Driving and the steering assistance warning goes off cuts off my cruise control and my lane keep assistance causing my car deceleration on highway promptly while going 70 mph.

NHTSA ID

11755796

Incident

Aug 8, 2026

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.

NHTSA ID

11755302

Incident

Oct 1, 2025

Mileage

40,000 mi

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.

NHTSA ID

11752326

Incident

Jul 17, 2026

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.

NHTSA ID

11746088

Incident

Jun 17, 2025

Daytime running lights on my car gave out. This has been an issue with 2020+ Defenders as the LED module burns out overtime due to a lack of sufficient cooling. Land Rover quoted over 5000 dollars for headlight replacements just for a simple LED bulb. This needs to be addressed.

NHTSA ID

11746030

Incident

Jun 23, 2026

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.

NHTSA ID

11738605

Incident

May 18, 2026

While I was driving, the vehicle shut down unexpectedly. I was sliding sideways across the road on ice on the side of a cliff and luckily was able to stop the vehicle before going off the side of the mountain. I had to entirely restart the vehicle to begin driving again.

NHTSA ID

11733249

Incident

Jan 15, 2025

Exhaust System Oxygen (O2) Sensors - Extended Warranty

Software Over The Air (SOTA) updates are failing to complete. Specifically Vehicle Domain Controller (VDC) PIVI and Gateway Module A (GWM). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.

Door Zone Module - Quiescent Drain

Software Over The Air (SOTA) updates are failing to complete. Specifically Vehicle Domain Controller (VDC) PIVI and Gateway Module A (GWM). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.

Arduous customer drive cycles have been found to accelerate the degradation of engine oil, leading to generation of engine oil sludge deposits in high pressure engine oil galleries of the engine and inside the Continuous Variable Valve Lift (CVVL) unit.

Door Zone Module - Quiescent Drain