The low-pressure fuel pump can fail due to an impeller defect, leading to engine stalling. Multiple recalls address this widespread issue. Estimated repair cost: $611 - $894.

Exterior Lighting Issues (Headlights)

Headlamp reflector housings can be non-compliant, affecting light projection and visibility. Dealers replace the entire headlamp assembly under recall. Estimated repair cost: $150 - $300.

Engine Control Module (ECM) Software Issue

An ECM software issue can cause the ignition coil to remain powered after engine shutdown, leading to short circuits and blown fuses. Recalls address this. Estimated repair cost: $0 (if under recall) - $500.

Positive Crankcase Ventilation (PCV) Valve Fracture

The aluminum PCV valve can fracture, allowing engine oil into the combustion chamber and potentially causing power loss. Recalls address this. Estimated repair cost: $100 - $200.

Visibility/Wiper System Issues

Issues can arise with wiper motors, switches, or blade connections, leading to reduced visibility in inclement weather. Estimated repair cost: $50 - $300.

Electrical System Issues

As with many modern vehicles, electrical glitches can occur, often related to infotainment or power accessories. Estimated repair cost: $100 - $500.

2018 Subaru Impreza Maintenance guide

Name: Maintenance dataset for 2018 Subaru Impreza
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis11 Sources Analyzed24 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Subaru Impreza has a 'Below Average' reliability verdict, with 34 recalls and 178 complaints. Key concerns include fuel pump failures and exterior lighting issues.

View Critical Issue: Fuel Pump Failure

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$1,500 - $2,500

TSBs & Recalls

135 TSBs | 34 Recalls

CarFocal account required

Unlock the Full 2018 Subaru Impreza Maintenance Guide

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

Key Takeaways

The 2018 Subaru Impreza has a 'Below Average' reliability verdict due to significant recall activity and numerous owner complaints.
A primary concern is the fuel pump, which has been subject to multiple recalls for potential failure leading to engine stalling.

5 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance