At a glance
What can fail
The DC-DC converter can fail due to a faulty boost control microchip. This failure stops the 12-volt charging system and can cause loss of engine power and exterior lights.
This page covers 5 recalls, 11 owner complaints and EPA fuel economy for the 2020 Land Rover Discovery Sport.
18–23 mpg combined
10.2–13.1 L/100km
Standard Sport Utility Vehicle 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 2 tested variants for this model year.
Engine behavior is the most common theme owners of the 2020 Land Rover Discovery Sport report. Several owners describe hesitation or stumble when accelerating from a stop, and others report the engine stalling or shutting down completely while the vehicle is stationary, sometimes accompanied by a rough idle and a warning message prompting the driver to re-engage a gear before the car cuts out entirely. A check engine light coming on alongside a sudden loss of power while moving is also mentioned. Vehicle speed control draws a smaller cluster of reports describing the car failing to accelerate as intended, with the vehicle decelerating on its own instead. Outside those two systems, one owner reports significant and unusual tread chunking on the factory-fitted Pirelli Scorpion tires, and a separate isolated report describes roof side rail bars detaching at highway speed.
11
Total Complaints
1
Crash-Related
1
Fire-Related
1
With Injuries
By System
The 2020 Land Rover Discovery Sport has 5 recalls, the most serious involving the mild-hybrid electrical system, where a voltage overload can cause the DC-to-DC converter to short-circuit, creating a risk of fire or a sudden loss of drive power.
This electrical issue appears across multiple filings covering the same underlying defect: an overload in the 48-volt system can cause a transistor failure and short-circuit in the converter, which may produce overheating and smoke. In some cases, the battery warning light will illuminate before conditions worsen, but loss of propulsion can also occur without warning, raising crash risk. On the restraint side, the seat belt retractors in the rear seating positions can deactivate their automatic locking function earlier than intended, which means a child safety seat may not be held firmly in place during a crash even when installed correctly. There is also a software issue affecting the instrument cluster: a coding error can cause the speedometer and odometer to randomly switch between miles per hour and kilometers per hour without the driver making any input, which can lead to confusion about actual vehicle speed and contribute to unintended speeding.
At a glance
What can fail
The DC-DC converter can fail due to a faulty boost control microchip. This failure stops the 12-volt charging system and can cause loss of engine power and exterior lights.
Looking to upgrade?
Find accessories for your 2020 LAND ROVER DISCOVERY SPORT at Amazon.
We may earn a commission for purchases made through these links.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
What the fix does
The repair procedure is being developed. Owners will receive notification letters starting June 12, 2026, with repair details to follow.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The seat belt automatic locking retractors may stop working early, preventing child car seats from being secured properly.
What the fix does
Dealers will inspect and replace the seat belt assemblies as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error causes the instrument cluster to randomly switch the speedometer and odometer display between miles per hour and kilometers per hour without any driver action.
What the fix does
Dealers will update the vehicle software at no cost to fix the display unit's measurement switching.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
An electrical overload could cause the voltage converter to short circuit, turning on the battery warning light.
What the fix does
Dealers will update vehicle software to prevent electrical overload failure in the voltage converter.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The 48-volt electrical system can become overloaded, damaging the MOSFET component and causing the DC/DC converter to short-circuit.
What the fix does
Dealers will install a software update that prevents the electrical overload condition.
Summarized — see the official notice for exact wording, dates, and contacts.