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.

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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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Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

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

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance

2020 Subaru WRX Maintenance guide

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

MAINTENANCE SUMMARY

View Critical Issue: Engine Issues - Knocking/Stalling

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$500 - $1000

TSBs & Recalls

58 TSBs | 1 Recalls

CarFocal account required

Unlock the Full 2020 Subaru WRX Maintenance Guide

Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

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

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance