This is the most frequently reported issue. The cause is often attributed to material defects, improper installation, or stress from temperature fluctuations. Early detection and repair are crucial to prevent propagation and maintain visibility, especially for safety systems. Estimated repair cost: $400 - $800.

Electrical System Issues

Owners report recurring electrical problems, with battery drain being a significant concern. This can lead to starting issues and potential failure of critical vehicle functions. Identifying the source of the drain is key to resolution. Estimated repair cost: $150 - $300.

Engine Performance Issues

While less common than windshield or electrical issues, some owners report engine-related performance problems. These can stem from various sources, including fuel system or ignition component issues. Estimated repair cost: $100 - $500.

Visibility/Wiper System

This complaint category encompasses issues related to the windshield wipers and washer system, impacting driver visibility in inclement weather. Estimated repair cost: $50 - $150.

CARFOCALvehicle research

2021 Subaru Forester Maintenance guide

Name: Maintenance dataset for 2021 Subaru Forester
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2021 Subaru Forester's primary maintenance concerns revolve around its windshield integrity and electrical system health. Owners frequently report early-life windshield cracking, a significant issue impacting visibility and safety systems.

View Critical Issue: Windshield Cracking

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

64 TSBs | 0 Recalls

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Key Takeaways

Windshield Integrity: Frequent reports of early-life windshield cracking necessitate regular inspection and prompt attention.
Electrical System Health: Be aware of potential battery drain and other electrical anomalies; address them swiftly.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance

2021 Subaru Forester Maintenance guide

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

View Critical Issue: Windshield Cracking

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

64 TSBs | 0 Recalls

CarFocal account required

Unlock the Full 2021 Subaru Forester Maintenance Guide

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

Key Takeaways

Windshield Integrity: Frequent reports of early-life windshield cracking necessitate regular inspection and prompt attention.
Electrical System Health: Be aware of potential battery drain and other electrical anomalies; address them swiftly.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance