Reports indicate critical failures such as broken shifter shafts and transmission binding or failure. These issues can lead to a complete loss of propulsion. Estimated repair cost: $2,500 - $6,000.

Severe engine damage, including knocking and stalling, requiring short block replacement, has been reported. These failures can occur at surprisingly low mileages. Estimated repair cost: $4,000 - $8,000.

Persistent pulling to the right has been noted, even after multiple dealer attempts at repair. This can compromise vehicle control. Estimated repair cost: $150 - $500.

Visibility/Wiper Issues

Complaints include windshield cracking, with some referencing prior class-action settlements for similar issues. The backup light switch recall also affects rear visibility. Estimated repair cost: $200 - $600 (windshield replacement).

CARFOCALvehicle research

2021 Subaru WRX Maintenance guide

Name: Maintenance dataset for 2021 Subaru WRX
Creator: Carfocal

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

MAINTENANCE SUMMARY

The 2021 Subaru WRX demands vigilant maintenance, particularly concerning its powertrain and engine. Owners report significant failures in these areas at relatively low mileages, including broken shifter shafts, transmission binding, and severe engine damage.

View Critical Issue: Engine Failures

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Reliability Score

Est. Annual Maintenance Cost

$500 - $1,000

TSBs & Recalls

44 TSBs | 1 Recalls

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Key Takeaways

Prioritize powertrain and engine inspections due to reported critical failures at low mileages.
Address the backup light switch recall promptly to ensure proper rear visibility.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance