2020 Land Rover Discovery Service and Repair Manual

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Factory-Grade Data

2020 Land Rover Discovery service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Landmark Edition Sport Utility 4-Door
  • SE Sport Utility 4-Door
  • S Sport Utility 4-Door
  • HSE Sport Utility 4-Door
  • HSE Luxury Sport Utility 4-Door

Engines covered

  • 3.0L 2995CC 183Cu. In. V6 GAS DOHC Supercharged
  • 3.0L 2993CC 183Cu. In. V6 DIESEL DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2020 Land Rover Discovery Recalls & Complaints

NHTSA #20V05300030/01/2020Component: SEATS:MID/REAR ASSEMBLY

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2020 Discovery vehicles. The second row seat frame assembly may be missing fasteners, resulting in a seat frame with insufficien

Consequence

In the event of a crash, the seats may not properly secure the occupants, increasing their risk of i

Remedy

Land Rover will notify owners, and dealers will replace the second row seat frame, tightening the bo

NHTSA #21V66800026/08/2021Component: SEAT BELTS:FRONT:RETRACTOR

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2021 Range Rover, 2022 Range Rover Sport, 2020-2021 Range Rover Velar, Discovery Sport, 2020-2022 Discovery, and Defender vehicle

Consequence

An unsecured child restraint system can increase the risk of injury during a crash.

Remedy

Dealers will inspect and replace the seat belt assemblies as necessary, free of charge. Owner lette

NHTSA #21V11700025/02/2021Component: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

Jaguar Land Rover North America, LLC. (Land Rover) is recalling certain 2018-2020 Range Rover, Range Rover Sport, Discovery, and Range Rover Velar vehicles. The Auto High Beam (AHB) system does not i

Consequence

The driver may be unaware that the high beams are illuminated, reducing visibility for oncoming traf

Remedy

Land Rover will notify owners, and dealers will update the vehicle software, free of charge. The re

NHTSA #20V69400010/11/2020Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2019-2020 Discovery vehicles. A loose contact between the battery ground stud and the chassis may result in various electrical f

Consequence

If the vehicle shuts down or loses exterior lighting while driving there could be an increased risk

Remedy

Land Rover will notify owners, and dealers will replace the ground stud, free of charge. The recall

NHTSA #23V39300001/06/2023Component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Jaguar Land Rover North America, LLC (Land Rover) is recalling certain 2017-2020 Land Rover Discovery vehicles. The UniLatch Keyless Vehicle (KV) entry function may fail to properly latch the rear pa

Consequence

Rear passenger doors that open while driving can increase the risk of a crash. An instrument cluste

Remedy

Dealers will disable the UniLatch Keyless Vehicle (KV) entry function, free of charge. Owner notifi

TSB #11032430

Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.

TSB #11031115

The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.

TSB #11030751

Smart Key Deactivated message on instrument cluster and unable to start their vehicle

TSB #11029858

The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.

TSB #11029600

There is a concern with the 48Volt charging system(DC/DC) with the vehicle.

TSB #11029598

There is a concern/fault with the 48Volt MHEV system.

TSB #11029576

12V STARTUP BATTERY FLAT - MILD HYBRID ELECTRIC VEHICLE (MHEV)

TSB #11029556

Once the vehicle is powered down via ignition cycle, it may not restart depending on remaining residual charge.

Showing the 8 most recent of 491 technical service bulletins on file with NHTSA.

20260115Component: VISIBILITY:WINDSHIELD

The contact owns a 2020 Land Rover Discovery. The contact stated that while the vehicle was at the dealer for maintenance, the contact was made aware of TSB: SSM74710 for the windshield seals. The veh

20251202Component: UNKNOWN OR OTHER

3 years ago my wife got in her car after a rain storm and center console was soaked in water. Leak coming from top of the windshield. Send it in for repairs. Fast forward 3 years later and it's still

20251127Component: ELECTRICAL SYSTEM

Water dripping into the cabin from the top of the windshield. Water in electrical system is turning lights and other functions on and off causing dangerous driving conditions and draining the battery

20251127Component: STRUCTURE:BODY

Water dripping into the cabin from the top of the windshield. Water in electrical system is turning lights and other functions on and off causing dangerous driving conditions and draining the battery

20251001Component: ELECTRICAL SYSTEM

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. C

Showing the 5 most serious of 30 complaints filed with NHTSA.

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