Check Engine Light Due to Failed Catalytic Converter on Subaru Forester

Submitted by Vehicle Owner · Feb 20, 2026

Published by RepairPal

Problem overview

The Check Engine Light may illuminate because of low catalytic converter efficiency. This same issue may cause the car to fail the State Smog Test if one is required.

374 people reported this problem

153 comments

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Subaru Forester vehicles with this problem

Average mileage: 116,495 miles

(11,000 - 275,000)

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Check Engine Light Due to Failed Catalytic Converter on Subaru Forester

Problem overview

Subaru Forester vehicles with this problem

Need a diagnosis? Trust our Subaru experts.

Search for another problem

Ask our experts about your Subaru.

Need a diagnosis? Trust our Subaru experts.

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