2020 Land Rover Defender: headlights failing or too dim

Filed Oct 24, 2026 · Lights · MD

I am reporting a suspected systemic safety defect involving premature failure of the integrated LED daytime running lights (DRLs) on 2020–2026 Land Rover Defender (L663) vehicles. The DRLs reportedly fail at relatively low mileage, frequently around 50,000 miles, during normal vehicle operation. The suspected cause is overheating and premature deterioration of the integrated LED driver electronics due to inadequate thermal management. The precise cause requires investigation. This failure eliminates an important daytime vehicle conspicuity feature, reducing visibility to approaching motorists, pedestrians, and cyclists, particularly during rain, overcast weather, and transitional lighting conditions. Some owners report no dashboard warning when the DRLs fail, potentially leaving drivers unaware of the malfunction. Jaguar Land Rover has known about this issue since at least 2021. Its Special Service Message SSM 75479 specifically acknowledges DRL failures on 2020–2021 Defenders and documents an engineering investigation. Similar failures have subsequently been reported by owners of later model years, suggesting a potentially unresolved design defect. Because the DRL electronics are integrated into the sealed headlamp assembly, dealerships generally require replacement of the entire assembly, costing approximately $3,000 per headlight or $6,000 for both. Land Rover reportedly provides goodwill replacements selectively while requiring other owners to pay out of pocket. I request that the federal safety agency investigate the entire 2020–2026 Defender population, examine JLR’s engineering records, warranty claims, component failure rates, and headlamp design revisions, and determine whether a safety recall and manufacturer-funded corrective action are warranted. This is a recurring failure of a factory-installed safety-related lighting system, not simply an ordinary maintenance or warranty concern.

Filed Aug 11, 2026 · Lights · CO

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 the federal safety agency 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.

Filed Aug 6, 2026 · Brakes, Engine · 40,000 miles · TX

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.

Filed Jun 23, 2026 · Lights · MD

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.

Filed Jun 23, 2026 · Electrical, Lights · TX

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.

Filed May 18, 2026 · Lights · RI

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.

Filed Jul 16, 2025 · Lights · OR

Mileage at time of failure: ~27,500 miles The signature LED headlamp assembly on my 2020 Land Rover Defender 110 X has experienced a failure of the integrated Daytime Running Light (DRL) module. The DRL has gone completely dark and is no longer functioning. This failure occurred shortly after the expiration of the factory warranty and affects a key visibility and safety feature of the vehicle. The only available repair, according to the dealership, is full replacement of the headlamp assembly at a cost of over $3,000. The DRL cannot be serviced independently. This is an unreasonable cost for a low-mileage vehicle and a safety-critical component. This appears to be a widespread issue affecting 2020–2022 Defender models, with numerous reports online from other owners citing identical DRL failures. This suggests a systemic design or quality defect in the headlamp assembly. A DRL failure undermines the vehicle’s visibility to other drivers and reduces safety during daylight driving. Given the high cost of repair and the frequency of reported failures, I believe this defect warrants investigation and potential recall action.

Filed Jul 2, 2025 · Lights · MA

The LED daytime running light failed on my vehicle and the dealer needed to replace the entire headlight unit. The manufacturer wanted to charge $2,500 for the replacement. There must be something faulty in the design of these headlights as out of 156 people I surveyed with Defenders, I’ve heard of 55 who have had this same issue, 7 who have had their daytime running light and headlight fail, 87 who have not had the daytime running light issue yet, and 7 respondents do not have the LED headlights and have not had their daytime running issue. This seems to be a manufacturer defect.

Filed Nov 14, 2024 · Lights · CA

This is a 2020 Land Rover Defender 110. The daytime running lights on the headlamp need replaced. I had replaced the passenger side a few months ago at the Land Rover dealership while the car was still under warranty at 49,500 miles. Now, the Land Rover has 55k miles and the driver side has gone out and the Land Rover Dealer has quoted me 3K to fix this. This is a common problem and many owners with the years 2020-2023 are experiencing the same problem. This should not be happening with LED lights with such low mileage on the Defenders. This is a safety issue and this model should be recalled. Yes, the dealer has confirmed the problem with the daytime running light on the headlamp. There were no warning lamps or messages with this failure.

Filed Jan 11, 2024 · Lights · NC

Daytime running lights stopped working with no warning signs or notifications, reducing visibility.. Has been confirmed by independent service center. Circuitry in headlight is known to fail causing the daytime running light to stop without warning

Filed May 19, 2023 · Lights · CA

The "cone of light "projected forward by the headlights is too narrow. When turning right or left from one dark road onto another dark road, one cannot determine if it is safe to turn. The light cone is blocked by the escutcheon around the headlight, which are set inward too deep. In addition, the light intensity of the main beam is insufficient for proper night driving on dark roads, Note:this car was one of the first deliveries in the US. The dealer was not aware of lack of fog lights on vehicle and beam width problem.

Filed Nov 10, 2020 · Lights · 155 miles · CA

The cone of light projected forward by the headlights is too narrow. When turning right or left from one dark road onto another dark road, one cannot determine if it is safe to turn. The light cone is blocked by the escutcheon around the headlight, which are set inward too deep.