The 2020 Outback represents the sixth-generation platform with either the naturally-aspirated FB25 2.5L or turbocharged FA24 2.4L boxer engine. While the CVT and infotainment improved over prior generations, we're seeing catastrophic engine failures on the turbo model and transmission cooling issues across both powertrains at surprisingly low mileage.
FA24 Turbo Engine Failure (Piston Ring Land Collapse)
Occasional · high severityTypical onset: 30,000-70,000 mi
Symptoms: Excessive oil consumption (1 qt per 1,000 mi or worse), White/blue exhaust smoke on cold start, Loss of power under boost, Check engine light with misfire codes, Catastrophic knock and bearing failure if driven low on oil
Fix: Complete short block replacement or engine rebuild required. Piston ring lands crack, oil control fails, cylinder scoring follows. Subaru has extended warranty coverage on some VINs but not all qualify. 18-25 labor hours for short block swap at indie shop.
Estimated cost: $8,000-12,000
CVT Transmission Oil Cooler Line Leaks
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Red fluid spots under vehicle near front wheels, Low transmission fluid warning on dash, Burning smell from engine bay, CVT slipping or shuddering if fluid level drops significantly
Fix: Cooler lines corrode at crimp points where they connect to hard lines. Both lines plus transmission mount replacement recommended while trans is dropped slightly for access. 4-6 hours labor, requires CVT fluid refill and relearn procedure.
Estimated cost: $800-1,400
Fuel Pump Failure (Recall 20V-490)
Occasional · high severitySymptoms: Engine stalling while driving, Hard starting or no-start condition, Rough idle and hesitation, Vehicle dies without warning at any speed
Fix: Low-pressure fuel pump impeller defect causes sudden failure. NHTSA recall covers replacement but many owners experienced failure before recall issued. Pump is in-tank assembly. 3-4 hours labor to drop tank and replace.
Estimated cost: $800-1,200
TCM/ECM Software Glitches and Transmission Shudder
Common · low severityTypical onset: 10,000-60,000 mi
Symptoms: Harsh downshifts or delayed upshifts, Hesitation from stop, Transmission shudder at 35-45 mph under light throttle, Check engine light with transmission-related codes
Fix: Multiple TSBs issued for CVT calibration updates. Reflash usually resolves software issues but persistent shudder may require CVT fluid drain/refill with Subaru High Torque fluid and additional updates. 1-2 hours for reflash, 2-3 hours if fluid service included.
Estimated cost: $200-600
Front Passenger Occupant Sensor False Airbag Warnings
Occasional · medium severitySymptoms: Airbag warning light illuminated, Passenger airbag off light stays on with adult passenger, Intermittent airbag system warnings
Fix: Occupant classification sensor mat in passenger seat fails or loses calibration. Recall 20V-666 addresses some units but intermittent failures still occur outside recall scope. Seat cushion and sensor mat replacement required. 2-3 hours labor.
Estimated cost: $600-1,000
Eyesight Camera Condensation and Blind Spot Monitor Failures
Occasional · low severityTypical onset: 20,000-60,000 mi
Symptoms: Eyesight disabled warning on dash, Pre-collision braking unavailable, Moisture visible inside windshield camera housing, Blind spot monitoring inoperative
Fix: Stereo camera assembly develops internal condensation, especially in humid climates. Windshield replacement or camera recalibration also triggers issues. Camera replacement requires windshield removal and system recalibration. 3-4 hours labor.
Estimated cost: $1,200-2,000
Skip the 2.4T entirely unless you verify short block replacement under warranty — the 2.5L is more reliable but the CVT cooling issues affect both, making this a risky used buy without full service records.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.