Electrical System - Battery Drain

Premature battery failure and persistent battery drain issues are frequently reported. This can lead to the vehicle dying unexpectedly or experiencing power loss. Estimated repair cost: $150 - $400.

Complaints include brake pedal failure and ineffective parking brakes. These issues can arise at very low mileage, posing a significant safety risk. Estimated repair cost: $400 - $1000.

Visibility/Wiper - Windshield Cracking

Spontaneous windshield cracking has been reported, even when the vehicle is stationary. This can be a safety hazard due to reduced visibility and potential for glass shards. Estimated repair cost: $300 - $700.

Some rear passenger seat belts have shown signs of fraying, which can compromise their effectiveness in a collision. Estimated repair cost: $100 - $300.

CARFOCALvehicle research

2020 Subaru WRX Maintenance guide

Name: Maintenance dataset for 2020 Subaru WRX
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed

MAINTENANCE SUMMARY

The 2020 Subaru WRX demands diligent maintenance, with a notable focus on its electrical system due to prevalent battery drain and premature battery failure issues. Owners should prioritize regular checks for parasitic draws and battery health.

View Critical Issue: Engine Issues - Knocking/Stalling

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Reliability Score

Est. Annual Maintenance Cost

$500 - $1000

TSBs & Recalls

58 TSBs | 1 Recalls

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Key Takeaways

Prioritize electrical system checks for battery drain and health.
Regularly inspect the brake system, including the parking brake.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance