Forward Collision Avoidance System Malfunctions

The Forward Collision Avoidance (FCA) system can exhibit false activations or fail to detect obstacles, leading to collisions. This system is also potentially linked to infotainment and climate control failures upon cold starts. Estimated repair cost: $300 - $1,200.

Complaints include erratic airbag behavior related to occupant detection systems, which can be influenced by occupant weight, seating position, and temperature. There is also a report of complete system failure in a severe accident. Estimated repair cost: $400 - $1,500.

Driveshaft Disconnection

A recall (WRN-23) addresses potential driveshaft disconnection due to loose center support bolts. While a recall remedy exists, improper installation or persistent issues could still lead to problems. Estimated repair cost: $500 - $1,500.

Park/Neutral Start Interlock Switch Failure

Recall WRQ-23 addresses a faulty park/neutral start interlock switch in the automatic transmission, potentially caused by water ingress from an insufficient weld. This can affect transmission engagement. Estimated repair cost: $150 - $400.

Visibility Issues (Windshield and Wipers)

Owners have reported windshield cracks appearing at low mileage and occasional malfunctions of the wiper system. Estimated repair cost: $300 - $700.

CARFOCALvehicle research

2023 Subaru Legacy Maintenance guide

Name: Maintenance dataset for 2023 Subaru Legacy
Creator: Carfocal

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

MAINTENANCE SUMMARY

The 2023 Subaru Legacy has an average reliability rating, with key concerns around its Forward Collision Avoidance system and airbag performance. Prioritize regular inspections of these safety systems.

View Critical Issue: Airbag System Issues

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

75 TSBs | 6 Recalls

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Key Takeaways

Prioritize inspection of the Forward Collision Avoidance system for accurate operation and the airbag system for consistent deployment, especially concerning occupant detection.
Confirm that the driveshaft recall (WRN-23) has been addressed, as loose center support bolts can lead to driveshaft disconnection.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance