2020 Land Rover Range Rover Powertrain (other) Problems

I own a 2020 Land Rover, VIN [XXX], which is affected by NHTSA 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 NHTSA 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

NHTSA ID

11770634

Incident

Sep 25, 2026

Loss of all driving power. Gave fail code of Battery fail. We relpaced the battwry and still didnt work. Then were told we needed to replace the alternator. Replaced alternator and still failed. Now being told that we need to replace the dc dc converter...we have paid for the part but that part is on back order and we have now been without a vehicle for 6 months

NHTSA ID

11733374

Incident

Nov 9, 2025

the brakes failed to function while I drove. I almost hit the car in front of me. the brake booster was not functioning. the engine check light appeared suddenly, but with that other messages too, and also that was safe to continue to drive with caution. Just to mention two more messages that appeared on the display were: Stability control not available and Hill descent Control not available. I had to press extremely hard to break the car and of course I had to drive very slowly. I was cough of guard and almost hit a car in front of me at the traffic light. afterwards I just drove very slowly to my house. I checked the errors on my car and did research (I did not go to the dealership because they just extort money from you). I found out that the auxiliary battery failed. I replaced the battery and reset the system and the new battery information and that fixed the issue. I read on the Land Rover forums similar experience from many owners of this car. I believe there is a serious design flow because the low voltage of the auxiliary battery should not have caused the brake booster to malfunction while I drove. Just to mention that this auxiliary battery is an additional battery, (it looks like a motorcycle battery) and the main one is still healthy. And this is a hybrid (PHEV) car. Lots of source of energy to power important modules in the car which should not depend on the small auxiliary battery. Plus, the engine was running, meaning the alternator should be enough to power the modules that failed. I was very scared and happy that it was not my wife who drove the car. I have a report that was generated by the diagnostic tool that I use. A lot of errors popped up during that scary drive home. I attached the report I recorded from my diagnostic tool.

NHTSA ID

11631410

Incident

Dec 2, 2024

Stopped on main road to perform a left turn, car stopped during the turn and then lurched forward. The car then became inoperable and would not go into gear. Gear selector was not available and car kept cutting out. I could not move the vehicle out of traffic and I had to sit in moving traffic with my hazard lights flashing. Husband came and sat in the car, waited 15 mins, started the car and overruled the car allowing him to move the car off the road and out of moving traffic.

NHTSA ID

11552605

Incident

Oct 23, 2023

TL* THE CONTACT OWNS A 2020 LAND ROVER RR 3.0 I6 PETROL HSE. THE CONTACT STATED WHILE DRIVING 5 MPH, WHEN THE VEHICLE BEGAN TO HESITATE AND JERK FORCEFULLY FORWARD. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED SHE CONTINUED TO DRIVE THE VEHICLE TO HER RESIDENCE. THE VEHICLE WAS TAKEN TO LOCAL DEALER JAGUAR LAND ROVER VENTURA LOCATED AT 3190 PERKIN AVE, VENTURA, CA 93003, (855) 222-3243, AND WERE UNABLE TO DUPLICATED THE FAILURE. THE CONTACT STATED SHE CONTINUED TO EXPERIENCE THE FAILURE. THE VEHICLE WAS TAKEN LAND ROVER MISSION VIEJO LOCATED AT 28701 MARGUERITE PKWY, MISSION VIEJO, CA 92692, (949) 359-5157, WHERE IT WAS DIAGNOSED WITH NEEDING A GEAR SHIFT MODULE TO BE REPLACED. THE VEHICLE HAD BEEN REPAIRED. THE CONTACT ALSO STATED ON APRIL OF 2020, SHE WAS UNABLE TO START THE IGNITION. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT DRIVABLE. THE VEHICLE WAS TOWED BACK TO LOCAL DEALER JAGUAR LAND ROVER VENTURA, WHERE IT WAS DIAGNOSED WITH NEEDING A MILD HYBRID ELECTRIC VEHICLE (MHEV DC2 DC) TO BE REPLACED. THE VEHICLE HAD BEEN REPAIRED. THE CONTACT STATED CONTINUING TO EXPERIENCE THE VEHICLE HESITATE AND JERK FORCEFULLY FORWARD. THE CONTACT STATED ON MAY, 29, 2020 WHILE THE VEHICLE WAS AT STAND STILL AT STOP SIGN, WHEN THE VEHICLE REVVED UP AND JERK FORWARD AND REAR ENDED A TRAILER HITCH. NO AIR BAGS DEPLOYED. THE CONTACT STATED NO ONE WAS INJURED OR SOUGHT MEDICAL TREATMENT. NO POLICE REPORT WAS FILED. THE CONTACT WAS ABLE TO DRIVE TO LAND ROVER MISSION VIEJO LOCATED AT 28701 MARGUERITE PKWY, MISSION VIEJO, AND WERE MADE AWARE OF THE FAILURE. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 17.

NHTSA ID

11343910

Incident

Dec 17, 2019

Mileage

17 mi

I PUT MY CAR IN PARK WHILE STILL RUNNING AND EXITED IT TO GRAB SOMETHING ABOUT 15 FEET AWAY ON A FRONT PORCH. I HEARD THE ENGINE MAKE A NOISE, I TURNED MY HEAD AND SAW THE CAR STARTING TO MOVE TOWARDS ME UP A SLIGHT HILL ON ITS OWN. I RAN TO THE CAR, OPENED THE DRIVER DOOR, AND TRIED TO STOP IT BUT FELL. THE CAR RAN OVER MY FOOT AND HIT THE FRONT OF THE HOUSE THAT CAUSED IT TO STOP. PRIOR TO THIS INCIDENT IT WAS IN FOR SERVICE FOR A FOUL ODOR THAT WAS COMING FROM INSIDE OF MY CAR. THEY HAD IT IN THE SHOP TWICE AND MADE A REPAIR THAT DID NOT FULLY CORRECT THE ISSUE. A FEW DAYS PRIOR TO THIS INCIDENT I NOTICED THERE WAS AN ISSUE ON ACCELERATION. AFTER ABOUT 10 MILES AN HOUR IT WOULD START TO HESITATE THEN GO INTO THE NEXT GEAR. I WAS GOING TO SCHEDULE A SERVICE FOR THIS AND THEN THE ACCIDENT HAPPEN. MY FOOT GOT TRAPPED UNDER THE BACK WHEEL AND EMERGENCY SERVICES REQUIRED TO REMOVE VEHICLE.*DT VEHICLE WAS TAKEN TO HENNESSY JAGUAR LAND ROVER GWINNETT (DULUTH, GA) TO BE INSPECTED. *DL

NHTSA ID

11308801

Incident

Feb 7, 2020

Mileage

950 mi

TL* THE ATTORNEY CALLED ON BEHALF OF THE VEHICLE OWNER/DRIVER. THE DRIVER OWNS A 2020 RANGE ROVER. THE CONTACT STATED THAT WHILE THE DRIVER WAS REVERSING INTO A PARKING SPACE, THE VEHICLE SUDDENLY ACCELERATED. THE VEHICLE COLLIDED WITH ANOTHER VEHICLE AND A PARKED VEHICLE. THE DRIVER SUSTAINED INJURIES THAT REQUIRED MEDICAL ATTENTION. THE ATTORNEY STATED THAT THE DRIVER HAD NO CONTROL OF THE VEHICLE. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED FROM THE ACCIDENT SCENE. THE VEHICLE WAS NOT TAKEN TO AN INDEPENDENT MECHANIC OR DEALER FOR DIAGNOSES. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 500. THE VIN WAS NOT AVAILABLE.

NHTSA ID

11308274

Incident

Feb 7, 2020

Mileage

500 mi

TL* THE CONTACT OWNS A 2020 LAND ROVER RANGE ROVER. THE CONTACT STATED THAT WHILE COMING TO A STOP THE VEHICLE JERKED FORWARD. THE CONTACT STATED THAT THE RPM REVVED INDEPENDENTLY. THE CONTACT ALSO STATED THAT WHILE STOPPED WITH THE BRAKE PEDAL DEPRESSED, THE ENGINE REVVED UP AND THE VEHICLE MOVED FORWARD. THE MAIN COMPUTER MODULE THAT CONTROLS MANY ELECTRICAL FUNCTIONS WITHIN THE VEHICLE CEASED CAUSING THE BACK-UP CAMERA AND SENSORS TO INTERMITTENTLY FAIL. DEALER (LAND ROVER VENTURA LOCATED AT 3190 PERKIN AVE, CA 93003, (855)222-3243) WHO REBOOTED A CERTAIN SYSTEM WITHIN THE VEHICLE (SYSTEM UNKNOWN) AND UPDATED THE SOFTWARE HOWEVER, THE FAILURE REMAINED. THE VEHICLE WAS RETURNED ANOTHER DEALER (JAGUAR MISSION VIEJO LOCATED AT 28701 MARGUERITE PKWY, MISSION VIEJO, CA 92692 PHONE NUMBER 949-392-7300) WHO DIAGNOSED TRANSMISSION CONTROL MODULE NEEDED TO BE REPLACED. THE GEAR SHIFT MODULE WAS REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND OPENED A CASE REGARDING THE MATTER. THE APPROXIMATE FAILURE MILEAGE WAS 900.

NHTSA ID

11301682

Incident

Dec 17, 2019

Mileage

900 mi