Land Rover Discovery stalling problems

Filed Aug 19, 2026 · Electrical · 108,029 miles · NC

The contact owns a 2021 Land Rover Discovery. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated, and the vehicle stalled in the middle of the roadway. The contact associated the failure with the federal safety agency Campaign Number: 26V248000 (Electrical System). The vehicle was towed to the dealer to be diagnosed. The dealer retrieved several fault codes associated with the power supply failure and DC Converter failure. The vehicle was not repaired because there was no repair available for the DC-DC converter failure. The contact stated that the dealer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 108,029.

Filed Jun 4, 2026 · Electrical · CA

2021 Land Rover Discovery 48V mild hybrid (MHEV). Recurring 12V system failures: repeated depleted/dead 12V batteries and no-start events. The 12V battery has failed and been replaced three times during my ownership (two documented at a franchised Land Rover dealer and an independent shop), plus a prior replacement under the previous owner per the vehicle history report. Symptoms: the vehicle will not start without a jump, repeated low-battery and SOS/telematics warnings, blank infotainment display, and full battery depletion after the vehicle sits unused for as little as 3 days, even with a battery maintainer in use. Dealer cloud diagnosis confirmed two contributing faults. First, elevated parasitic/quiescent current draw from control modules not entering proper sleep state, measured at 1.6A versus a normal value near 0.01A. Second, inadequate 12V charging. The dealer replaced the 12V and telematics backup batteries and applied software updates to multiple modules (including TCU and BCM), yet the failures recurred. This VIN has an open safety recall on MHEVs (the federal safety agency 26V‑248, manufacturer D126) describing a DCDC converter internal fault that causes loss of 12V system charging and a "Stop Safely, Electrical Fault Detected" warning, with potential loss of motive power, coasting to a stop, and loss of exterior lighting. The remedy is not yet available. Safety risk: loss of 12V charging and battery depletion can cause stalling, loss of motive power in traffic, no-start and stranding, and loss of lighting, all of which increase crash risk. On one occasion the vehicle barely started after sitting at an airport lot, nearly leaving my family stranded. The problem has been reproduced and confirmed by both a franchised dealer and an independent service center. The vehicle and the failed batteries are available for inspection on request. Warning messages first appeared before the current failure and have recurred across multiple battery replacements.

Filed Jan 28, 2026 · Electrical · 76,000 miles · MI

The contact owns a 2022 Land Rover Discovery. The contact stated that while driving at an undisclosed speed, the vehicle jerked, and several unknown warning lights were illuminated. The vehicle was pulled over to the side of the road and turned off. The contact waited before restarting the vehicle; however, after driving for several miles the failure reoccurred. The contact stated that on a separate occasion, the vehicle jerked, and the vehicle failed to accelerate as intended while depressing the accelerator pedal before the vehicle stalled. The message "Emergency Braking Assistance Not Available" was displayed. The contact was able to coast to the side of the road. The contact called for assistance and another driver arrived the scene and followed behind the vehicle back to the residence. The vehicle was taken to the dealer, where it was diagnosed that the ground studs were not connected and had failed to function as intended. The vehicle remained at the dealer unrepaired. The contact stated that before the electrical failure, the message "Check Coolant" was displayed. Upon further investigation, the contact related the failure to the federal safety agency Campaign Number: 21V457000 (ELECTRICAL SYSTEM); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was approximately 76,000.

Filed Jan 4, 2026 · Electrical, Engine · IN

3rd time the vehicle has experienced a electrical fault and renders the car undrivable and will shut down while driving regardless of where you are. Each time the vehicle has stopped while driving on an interstate.

Filed Jan 2, 2026 · Electrical · OR

While driving my 2021 Land Rover Discovery (MHEV) in active traffic, the vehicle suddenly displayed an “Electrical system fault – Stop safely” warning. Immediately after the warning, the vehicle lost power and shut down, leaving me stalled in traffic with no ability to safely move the vehicle out of the roadway. There was no prior warning, no gradual degradation, and no driver-caused condition. The shutdown appeared to be related to the 48-volt mild-hybrid electrical system, possibly involving the DC-DC converter or battery management system, which disabled critical vehicle functions. This failure created an immediate safety hazard. I was at risk of being rear-ended and had limited ability to safely exit traffic. The vehicle became effectively inoperable without warning, which is unacceptable in real-world driving conditions. What is especially concerning is that: •The warning instructed me to “stop safely,” yet the vehicle did not allow time or power to do so •There were no visible issues beforehand •The issue appears consistent with known Land Rover MHEV electrical failures •Software updates were present, but did not prevent the failure A sudden electrical shutdown in traffic poses a serious safety risk to drivers, passengers, and others on the road. This issue should be investigated for potential defect, recall, or mandatory repair, as it compromises safe vehicle operation.

Filed Oct 1, 2025 · Electrical, Engine · NJ

Defect Summary: Repeated water intrusion (windshield, roof rails, rear door latch) leading to electrical damage. Electrical failures resulting in sudden loss of power, lighting, and infotainment. Critical safety system failures including: Sudden loss of steering assist and brake assist while in motion. Vehicle stalling with the engine running but no drivetrain response. Gear shifter malfunctions leaving the vehicle stuck in gear. Notable Incidents: July–August 2025 (61,000 mi): Multiple events of complete power loss while driving, including loss of steering and braking control on a public roadway. September 11, 2025 (post-repair): After dealer-replaced battery and gear-shift module, the vehicle failed catastrophically within 450 feet of leaving the service center, jolting violently, losing all electrical power, and leaving steering and brakes stiff. An Edison Police officer witnessed the event and assisted in traffic control. Safety Concern: These recurring failures present a clear and ongoing danger of crash, injury, or fatality. The pattern demonstrates a systemic design or manufacturing defect related to water ingress and electrical integrity.

Filed Sep 19, 2025 · Electrical, Engine · 65,000 miles · FL

The contact owns a 2019 Land Rover Discovery. The contact stated that while driving at 20 MPH and entering the highway, the vehicle shut off. While driving at 45 MPH, the vehicle shut off and restarted. The vehicle coasted after stalling. The vehicle was shifted into park and then into drive to continue driving. There were no warning lights illuminated. The contact linked the failure to the federal safety agency Campaign Number: 20V694000 (Electrical System) and 19V040000 (Engine). The contact received notification of the federal safety agency Campaign Number: 23V393000 (Electrical System, Latches, Locks/Linkages). The local dealer was contacted, and confirmed there was a cyberattack on the computers, and they would be down until October 2025. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 65,000.

Filed May 29, 2025 · Engine · AZ

I am filing this complaint regarding a catastrophic engine failure on my 2017 Land Rover Discovery HSE Luxury with the 3.0L V6 supercharged engine. The failure was caused by a broken timing chain, which resulted in severe internal engine damage. This component failure has been confirmed by an independent Land Rover specialist, and the damaged parts — including the broken chain — are available for inspection upon request. The incident put our safety at risk, as the vehicle experienced sudden loss of engine power while in operation. A complete engine stall, especially in traffic or at highway speeds, could easily lead to loss of power steering and braking assistance, significantly increasing the chance of an accident. Prior to the failure, we noticed several warning signs, including an illuminated check engine light, rough idling, and multiple diagnostic trouble codes (DTCs), such as P0018, P0019, P0300, P0304, P0305, and P0306. These symptoms began appearing a few weeks before the engine failed completely, but escalated quickly. To our knowledge, there is no recall or technical service bulletin (TSB) addressing this known issue on this model and engine configuration. The vehicle has not yet been inspected by Land Rover, the police, or any insurance agency, but the independent mechanic confirmed that the failure was internal and directly related to the timing chain system. We are submitting this report in the interest of public safety, as this type of failure on a vehicle with regular maintenance and 140,000 miles should not occur without warning. We believe this may indicate a broader reliability issue with the timing system in these engines and urge the federal safety agency to investigate.

Filed Jan 6, 2025 · Electrical, Engine · 106,331 miles · TX

The contact owns a 2018 Land Rover Discovery. The contact stated while driving approximately 35 MPH, the battery warning illuminated. The contact stated that the vehicle stalled several seconds after the battery warning light was illuminated. The contact was able to coast into a parking lot and the vehicle was taken to a Parts Store where a new battery was purchased. The contact installed the battery however, the vehicle stalled again. The contact left the vehicle on the side of the road. The vehicle had not been diagnosed or repaired by a dealer or independent mechanic. The manufacturer was not informed of the failure. The failure mileage was 106,331.

Filed Jun 16, 2024 · Engine · OH

On May 18, 2024 at approximately 4pm, my husband turned on my 2019 Land Rover Discovery from a cold start after sitting parked for about 20 minutes. We heard a slight rattle upon start-up, so he turned the car ignition off. He restarted the car after about a minute and we did not hear the rattle. We began driving the car and after about 2-3 miles, the car started shuddering and began slowing down but did not completely stall. My husband turned off the car again and we waited for a couple of minutes and he restarted the car. It drove fine for about a mile and began shuddering/hesitating again as we were driving. Then the car made a loud warning sound, a warning light flickered on the dash and the engine completely turned off as we were driving. We were in the middle of traffic and had we been on the freeway, there would have been catastrophic consequences as the engine completely stopped. We thankfully were able to coast to a side-street on our immediate right and stopped. The engine would not turn over and my husband was unable to restart the car. I immediately made an appointment with my local Land Rover dealership for 3 days later (next available) and had the truck towed there. After inspection, they told me they believed the main bearing in the engine failed due to an oil pump failure and that the engine would need to be replaced. My truck is 5 years old and has less than 100,000 miles (only about 80K). No previous warning lights! A car this expensive and with so few miles with regular maintenance service being performed by either Land Rover or AAA, shouldn’t need a new engine. This is after I’d had the camshaft adjuster/timing chain replaced in this truck by the same dealership only 3 months prior! After speaking to the service person, he informed me that 2 other Land Rovers were sitting in the dealership waiting for the SAME engine and waiting for 4-5 months to be delivered from the manufacturer with NO ETA! Known, dangerous problem! Please help resolve!