Owner-reported complaints naming the powertrain system, filed with NHTSA
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Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2018 Land Rover Discovery Sport submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
I continue to have an intermittent issue with my car throwing itself into park. It happened once in 2024, 2025 but now three times in the last two weeks. This is becoming incredibly unsafe as while driving the car puts itself into park while in motion. The insurance company will not repair due to it being intermittent. I do not know what to do but I need this documented for safety reasons
While driving approximately 30 mph in June 2024, my 2018 Land Rover Discovery Sport unexpectedly displayed Gearbox Fault and Brake Fault warnings and shifted itself into Park while the vehicle was moving. The vehicle became immobilized in the roadway and could not be shifted out of Park for an extended period. The identical failure occurred again in July 2025 and July 2026. During the 2025 and 2026 events, the vehicle again became locked in Park and left me stranded. During the 2026 incident, the failure occurred twice within approximately fifteen minutes, and each event required approximately thirty minutes of repeatedly applying the brake pedal and cycling the electronic parking brake before the transmission would release. Land Rover dealerships have recovered transmission diagnostic trouble codes, including P099B-14 (Shift Solenoid G Control Circuit Low), and have repeatedly diagnosed the likely cause as an internal transmission valve body and/or internal transmission wiring harness failure. The Warranty Company - Fidelity Warranty Services (Carmax) has consistently refused to cover the repair of this vehicle stating that it must be replicated in front of the warranty technician. This is an intermittent issue which means it can not be replicated on demand. Instead of working with me, they continue to have me drive a vehicle which can put me and others at risk This failure has now occurred over three consecutive years and creates a significant safety concern because the vehicle can unexpectedly become immobilized and lose propulsion. I am submitting this complaint because I believe this may represent a recurring safety defect.
The contact owns a 2018 Land Rover Discovery Sport. The contact stated that while driving at an undisclosed speed, and while the vehicle was idling, there was an abnormal rattling sound coming from the vehicle. The vehicle lost motive power and the transmission failed to shift properly. The contact conducted was able to retrieve DTC: P1315, P0304, P0316, P054A and P0014. The dealer was not notified of the failure. The manufacturer was notified of the failure. The approximate failure mileage was 72,000.
About a year and a half ago the vehicles warning lights started show thing like check engine, coolant low, battery low, engine overheating and the fan would start running very loudly and thw start stop feature stoped workong even though it indicated it was working. I took it to the dealership and they said they had fix whatever was wrong. A few months later it started up again but this time while going up a busy hill the vehicle started making a loud whining sound, was loosing power and eventually died completely. No lights no starter no nothing. Very dangerous for me and other drivers because it was a sudden stop.I had it towed to my home and the next day to the dealership. After a few days they called me and told me that the vehicle had experienced a "mechanical failure" and that Land Rover decided to ship a new engine to be installed. After a week I had what felt like a brand new car. Now a little over a year later the vehicle is doing the exact same thing with the warning lights, the fan, the loss of power, the stop start function not working, and this time it's no longer under warranty according to the dealership. I've decided to stop driving it because I'm afraid it may cut off during my drive to or from work in the freeway and get myself and or someone else killed.
The Power Transfer Unit(PTU) failed catastrophically at the rear pinion. This is available for inspection until it is repaired. This could have caused a major crash, at the time I was on the interstate only going 30-40mph and was able to get to the shoulder. But if I had been going faster there was a possibility of me pole-vaulting. Unknown The component is currently being inspected by the dealer. It wasn’t involved in a crash so the police/ insurance aren’t inspecting it. There were no warning lamps, before and after the incident. The only possible sign could have been a slight whining when the car was in lower gears. However that had been the case since the car was first bought. And when we asked the dealer they said it was normal.
The vehicle has a terrible delay when accelerating from a rolling stop between 8-11 mph. If you try to accelerate and the vehicle is at this speed, the delay is about 2-3 seconds before the transmission gets it into gear.
1: GEARBOX FAULT.. UNABLE TO MOVE GEARBOX FROM PARK TO REVERSE OR DRIVE 2" PARK BRAKE FAULT. *TR
WHEN ENGINE COLD AND SHIFTING INTO REVERSE IT WILL TAKE ABOUT 2 SECONDS FOR CAR TO START MOVING. MY FAMILY IS PUSHING ON GAS IN THAT SMALL WINDOW. WHEN THE CAR MOVES IT IS QUICKLY ACCELERATING STARTLING THE DRIVER.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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