Land Rover Range Rover check engine light comes on

Filed Oct 12, 2026 · Electrical, Steering · MI

I own a 2020 Land Rover, VIN [XXX], which is affected by the federal safety agency Safety Recall 26V‑248 / Jaguar Land Rover Recall D126. I brought the vehicle to an authorized Land Rover dealership after the check-engine light illuminated. While the vehicle was at the dealership, I requested that the open D126 safety recall also be performed. The dealer informed me that they could not perform the recall software update because my 12-volt battery is “almost failing” and told me that I would first have to pay out of pocket to replace the battery. I am concerned about this because Recall 26V‑248 specifically involves the vehicle’s DC-DC converter and insufficient electrical load balancing. According to the recall, a failure of the DC-DC converter can result in loss of 12-volt system charging and can ultimately cause loss of motive power and exterior lighting I did not bring the vehicle to the dealership because of a dead battery or because the vehicle would not start. I drove the vehicle to the dealership because the check-engine light had illuminated. The dealer is effectively requiring me to purchase a 12-volt battery before they will perform the open safety-recall remedy. I have asked for documentation showing the battery test results, the diagnostic trouble codes associated with the check-engine light, and the manufacturer procedure explaining why the existing battery prevents the dealer from performing Recall D126. I am concerned that the condition of the 12-volt battery could potentially be associated with the charging-system defect that is the subject of this recall. I do not believe I should be required to pay for a component potentially affected by the recalled charging-system condition simply in order to obtain the federally mandated recall remedy. I am requesting that the federal safety agency review whether Jaguar Land Rover and/or its authorized dealer may require an owner to purchase a replacement 12-volt battery as a condition of performing Recall 26V‑248, particularly whe INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

Filed Oct 7, 2026 · Airbags, Engine · TX

Component Failed & Availability: The high-pressure fuel system and the Supplemental Restraint System (SRS) have failed. The vehicle is currently available for inspection upon request. Safety Risk: The vehicle experiences severe heat-soak depressurization, causing unpredictable engine stalling, sudden loss of power, and violent pressure lag during hot starts and acceleration. This creates a severe crash hazard when attempting to enter or maneuver in traffic. Simultaneously, the primary airbag/restraint matrix is faulted, meaning occupants are unprotected if an accident occurs due to the stalling. Warning Lamps & Symptoms: The Check Engine Light is illuminated, actively displaying DTC P00C6-00 (Fuel Rail Pressure Too Low - Engine Cranking Bank 1). The SRS warning light is also continuously illuminated.

Filed Sep 14, 2026 · Electrical · 76,200 miles · LA

The contact owns a 2020 Land Rover Range Rover. The contact stated that while his wife was driving approximately 40 MPH, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the vehicle was experiencing low electrical power, preventing communication with an unknown component. The mechanic determined that the hybrid battery needed to be replaced. The contact associated the failure with the federal safety agency Campaign Number: 26V248000 (Electrical System); however, the part to do the recall repair was not yet available. The dealer was contacted and informed the contact that there would be a charge for the diagnostic test. The vehicle was not repaired. The failure mileage was approximately 76,200.

Filed Jul 22, 2026 · Electrical, Engine · DE

While Driving the car shuts off without warning. Then a check engine light comes on.

Filed Jul 13, 2026 · Electrical · NJ

**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)

Filed Feb 12, 2026 · Fuel system · TX

Driving down the road and the vehicle lost all fuel pressure and engine shut off in the middle of the road. Turns out to be a catastrophic Bosch CP4 failure. Thankfully I was not on the highway otherwise this likely would've caused an accident because besides steering and brakes i had no way to get the car out of the road and probably wouldn't have made it to the shoulder on the 5 lane highway. My safety was put at risk by having to sit on a busy road unable to move the car hoping no one came up and hit me. The issue has been confirmed by my independent service center. The component has not been inspected by the manufacturer, police, insurance or anyone else besides my mechanic. The battery light and check engine light came on approximately 2 seconds before the car died in the road. Other than than that no symptoms

Filed Feb 6, 2026 · Electrical, Engine · OH

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)

Filed Sep 3, 2025 · Engine · 19,000 miles · LA

The contact owns a 2023 Land Rover Range Rover. The contact stated that while driving 60-65 MPH, the check engine warning light illuminated. The contact drove to the destination and parked the vehicle. The contact stated that while attempting to drive the vehicle out of the parking lot, several unknown warning lights were illuminated, and the vehicle stalled. The vehicle failed to restart after several attempts and was towed to the dealer, where the battery was replaced; however, the failure persisted. The dealer informed the contact that an unknown part needed to be replaced, but the part was on backorder. The vehicle was not repaired and remained at the dealer. The manufacturer was notified of the failure. The failure mileage was approximately 19,000.

Filed Jun 23, 2025 · Engine, Steering · 95,000 miles · PA

The contact owns a 2015 Land Rover Range Rover. The contact received notification of the federal safety agency Campaign Number: 24V840000 (Steering); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that after accelerating from being parked, the check engine warning light and a red explanation sign were illuminated. The message that the vehicle was in restricted mode was displayed on the instrument panel and the contact continued to drive approximately 25 MPH, causing the vehicle to go into LIMP Mode. The messages “Suspension Fault - Stop Safely”, and “Stop Engine” were displayed on the instrument panel. The contact was able to drive the vehicle home, but the vehicle failed to exceed 5 MPH. The dealer was contacted and confirmed that there was no recall related to the failure. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the issue. The manufacturer advised that the contact get a rental and later provide receipts for reimbursement. The failure mileage was approximately 95,000. VIN tool confirms parts not available.

Filed Jan 28, 2025 · Electrical, Engine · NY

I purchased this vehicle on [XXX] The vehicle was delivered to me on January 15th. This incident occurred [XXX]. The Engine system failed and is available for inspection. The engine failed and began smoking profusely which inhabited my ability to see as well as other drivers within distance, which put all drivers and passengers at risk. The problem has been confirmed by an independent service center. The vehicle was inspected by a NYS certified mechanic. The check engine light came one prior to the failure and was noticed 2 days after purchasing the vehicle. Which is when this incident occurred. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)