2020 Subaru Outback 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.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- Limited Wagon 4-Door
- Touring Wagon 4-Door
- Premier Wagon 4-Door
- Outdoor XT Wagon 4-Door
- Convenience Wagon 4-Door
- Limited XT Wagon 4-Door
- Premier XT Wagon 4-Door
- Premium Wagon 4-Door
- Touring XT Wagon 4-Door
- Onyx Edition XT Wagon 4-Door
- Base Wagon 4-Door
Engines covered
- 2.5L 2498CC 152Cu. In. H4 GAS DOHC Naturally Aspirated
- 2.4L 2387CC 146Cu. In. H4 GAS 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
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump insid
Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were ma
Subaru of America, Inc. (Subaru) is recalling certain 2020-2022 Outback and Legacy vehicles. A capacitor in the sensors for the Occupant Detection System (ODS) may crack and short circuit, which can
An air bag that does not deploy during a crash can increase the risk of injury.
Dealers will replace the ODS sensors on the front passenger seat, free of charge. Owner notificatio
Subaru of America, Inc. (Subaru) is recalling certain 2020 Outback and Legacy vehicles. The brake pedal mounting bracket may have a missing or insufficiently tightened bolt.
A missing or loose bolt may cause the brake pedal mounting area to deform over time, which can reduc
Subaru will notify owners, and dealers will inspect the brake pedal mounting bracket hardware and re
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2020 Legacy and Outback vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage bef
An improperly secured drive chain may slip and break, causing a loss of drive power and increasing t
Dealers will reprogram the TCU, inspect TCU data for chain slip, and visually inspect the chain guid
Subaru of America, Inc. (Subaru) is recalling certain 2020-2021 Outback and Legacy vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive
An improperly secured drive chain may slip and break, causing a loss of drive power and increasing t
Dealers will reprogram the TCU, inspect TCU data for chain slip, and visually inspect the chain guid
This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.
This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
This bulletin announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units utilized in the models listed.
This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
This bulletin announces a design change to the TR690 CVT control valve body which features an enhanced line pressure sensor O-ring, designed to prevent abnormal sensor readings caused by O-ring leakage.
This announcement provides information on the remanufactured CVT transmission program.
This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).
This announcement is an update to safety recall WRA-24 ODS sensor replacement for 2020-2022 MY Subaru Legacy and Outback vehicles.
Showing the 8 most recent of 567 technical service bulletins on file with NHTSA.
On 12/6/2023, as I slowly turned right into a parking space, my car suddenly surged forward and accelerated without my input to the gas pedal. The brakes did not work, and there was no resistance fro
On 12/6/2023, as I slowly turned right into a parking space, my car suddenly surged forward and accelerated without my input to the gas pedal. The brakes did not work, and there was no resistance fro
The contact owns a 2020 Subaru Outback. The contact stated that while driving in reverse the vehicle crashed into a metal dumpster causing severe damage to the rear end of the vehicle. During the inci
I was parking my car slowly until it suddenly accelerated. I hit a wall and car got totaled.
I was parking my car slowly until it suddenly accelerated. I hit a wall and car got totaled.
Showing the 5 most serious of 1125 complaints filed with NHTSA.
