2023 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2023 Subaru Outback has 4 documented known issues, with 1 rated critical. The most serious is Thermo Control Valve Failure Causing Check Engine Light and Overheating Risk ($900-$1,800 repair). Across all issues, repair costs range from $150 to $2,000. DIY maintenance guides at au7o.io.
On the 2020-2023 Subaru Outback 2.5L FB25 naturally aspirated H4, multiple 2020-2023 Outback owners with the 2.5L FB25 engine report failure of the thermo control valve assembly, which can trigger a check engine light, disable normal coolant flow control, and in some cases lead to overheating or poor heater performance. Subaru issued a warranty extension and service communications because the valve's internal position sensor/motor can fail. Owners commonly see the problem well before 100,000 miles, often with no prior cooling-system symptoms.
Diagnosis usually begins with stored cooling-system related DTCs and confirmation of improper thermo control valve operation using scan data. The standard repair is replacement of the thermo control valve assembly, followed by coolant refill/bleed and code clearing. If the vehicle has overheated, the cooling system should be pressure-tested and checked for secondary damage.
Parts and tips from 0+ owners who fixed this issue
On the 2020-2024 Subaru Outback, owners of 2020-2024 Outbacks frequently report power rear gate problems including failure to open or close, repeated beeping, stopping mid-travel, or reversing unexpectedly. Subaru issued service information for rear gate control module logic and initialization issues, and owner complaints commonly describe the hatch becoming unusable until reset or repair. In some cases the problem is tied to low system voltage, latch alignment, or module/software faults.
Diagnosis should include battery voltage testing, scan-tool checks for rear gate module faults, latch/strut inspection, and confirmation of proper gate initialization. Repairs range from module reprogramming or reset procedures to latch, switch, spindle drive, or control module replacement. If the gate is misaligned, adjustment may be required to prevent false pinch detection.
Parts and tips from 0+ owners who fixed this issue
On the 2020-2025 Subaru Outback, owners across the 2020-2025 generation report recurring Driver Monitoring System and EyeSight-related warnings such as 'Driver Monitoring System Disabled' or temporary loss of driver-assist functions even in normal conditions. While some events are environmental, complaint patterns and service visits show that camera alignment, software sensitivity, interior camera faults, and related module issues can cause repeated warnings or feature shutdowns. This does not duplicate windshield cracking; the issue is the electronic sensing/monitoring system itself.
Diagnosis involves scanning ADAS modules for stored faults, checking for software updates, verifying camera visibility and alignment, and inspecting the driver monitoring camera and harness. Repairs may include module reprogramming, camera recalibration, replacement of the driver monitoring unit, or correction of low-voltage conditions that trigger false faults. If the windshield or interior trim has been disturbed, recalibration is especially important.
Parts and tips from 0+ owners who fixed this issue
On the 2020-2024 Subaru Outback, owners have reported front seat heaters that stop working, heat unevenly, or become excessively hot in localized areas. Complaints and forum reports point to failures in the seat heater element, thermostat/control logic, or seat cushion wiring within this generation. The issue is more than comfort-related when overheating occurs, as some owners describe burning sensations or needing to shut the heater off immediately.
Diagnosis typically includes checking heater switch operation, seat heater current draw, and continuity of the seat cushion/backrest elements. Repair often requires replacing the failed heater pad or seat trim assembly, and in some cases the seat control module or wiring repair. Technicians should verify both cushion and backrest elements because one section may fail while the other still heats.
Parts and tips from 0+ owners who fixed this issue
POWER TRAIN:DRIVELINE:DRIVESHAFT
Subaru of America, Inc. (Subaru) is recalling certain 2023 Outback, Legacy, Ascent, and Impreza vehicles. The center support bolts for the driveshaft may loosen, resulting in the disconnection of the front end of the driveshaft.
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to enter the inhibitor switch, causing it to fail.
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Subaru of America, Inc. (Subaru) is recalling certain 2022 Outback vehicles. The engine wiring harness may have been damaged, resulting in a loose electrical connection to the engine control unit (ECU).
VISIBILITY:WINDSHIELD
Subaru of America, Inc. (Subaru) is recalling certain 2022 Impreza and Outback vehicles. The incorrect paint clearcoat may have been applied, which can cause the windshield to be insufficiently bonded to the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 212, "Windshield Mounting."
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
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 prevent the front passenger air bag from deploying in a crash.
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According to Au7o's analysis of 0+ owner reports, the 2023-2023 Subaru Outback has 4 documented issues. The most frequently reported are: Thermo Control Valve Failure Causing Check Engine Light and Overheating Risk, Rear Gate Control Module / Power Liftgate Failure and Uncommanded Reversal, Driver Monitoring System and EyeSight Camera Faults Causing Persistent Warning Messages. Of these, 1 is rated critical and should be addressed promptly.
The 2023-2023 Subaru Outback has 4 known issues documented across 0+ owner reports. 1 issue is rated critical: Thermo Control Valve Failure Causing Check Engine Light and Overheating Risk. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Subaru Outback issues range from $150 to $2,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Thermo Control Valve Failure Causing Check Engine Light and Overheating Risk, typically costs $900-$1,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Multiple 2020-2023 Outback owners with the 2.5L FB25 engine report failure of the thermo control valve assembly, which can trigger a check engine light, disable normal coolant flow control, and in some cases lead to overheating or poor heater performance. Subaru issued a warranty… Repairs typically run $900-$1,800. Severity: high.
Owners of 2020-2024 Outbacks frequently report power rear gate problems including failure to open or close, repeated beeping, stopping mid-travel, or reversing unexpectedly. Subaru issued service information for rear gate control module logic and initialization issues, and owner… Repairs typically run $150-$1,800. Severity: medium.
Owners across the 2020-2025 generation report recurring Driver Monitoring System and EyeSight-related warnings such as 'Driver Monitoring System Disabled' or temporary loss of driver-assist functions even in normal conditions. While some events are environmental, complaint patter… Repairs typically run $150-$2,000. Severity: medium.
Owners have reported front seat heaters that stop working, heat unevenly, or become excessively hot in localized areas. Complaints and forum reports point to failures in the seat heater element, thermostat/control logic, or seat cushion wiring within this generation. The issue is… Repairs typically run $300-$1,200. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
