Electrical System Issues

Frequent complaints involve the **electrical system**, including persistent **passenger airbag sensor malfunctions** leading to non-deployment or erroneous deployment. Issues with the **ignition switch/key not releasing** are also common, often linked to the shift interlock mechanism. Estimated repair cost: $400 - $700.

Brake Light Switch Failures

Multiple recalls address the **brake light switch**, which can lead to failure of the brake lights, prevent keyless ignition start, and disable shifting out of park. It can also affect the Eyesight Driver Assist System's pre-collision braking. Estimated repair cost: $150 - $250.

Owners have reported spontaneous **windshield cracking**, sometimes at very low mileage. Estimated repair cost: $400 - $600.

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2015 Subaru Impreza Maintenance guide

Name: Maintenance dataset for 2015 Subaru Impreza
Creator: Carfocal

v1.1Updated May 30, 2026Daniel Wilson4 Sources Analyzed3 Critical Recalls

MAINTENANCE SUMMARY

The 2015 Subaru Impreza presents a maintenance profile marked by a significant number of Technical Service Bulletins (TSBs) and recurring issues, particularly within its electrical system and powertrain. Owners should prioritize vigilance regarding ignition switch/shift interlock problems, where the key may stick, and passenger occupancy sensor malfunctions that can affect airbag deployment.

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

200 TSBs | 4 Recalls

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Key Takeaways

The 2015 Impreza's 'Below Average' reliability is largely due to persistent electrical and powertrain issues.
Prioritize inspection of the ignition switch/shift interlock and passenger occupancy sensors.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance