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Service bulletins for the 2023 Subaru Forester

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

259 on file from NHTSA, as of 2026-10-19.

About P0011 on the 2023 Subaru Forester: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P0011 are shown. Show all

Bulletins, newest first
09-104-23R2024-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin announces availability of reprogramming files for the Engine Control Module (ECM) to address rare cases of DTCs P0011 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 1) and P0021 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 2) detected by the ECM.
09-104-23R2023-11-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin announces availability of reprogramming files for the Engine Control Module (ECM) to address rare cases of DTCs P0011 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 1) and P0021 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 2) detected by the ECM. The new files contain enhanced logic to optimize the detection parameters of DTCs P0011 & P0023.
09-104-232023-06-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING. This bulletin announces availability of reprogramming files for the Engine Control Module (ECM) to address rare cases of DTCs P0011 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 1) and P0021 (“A” Camshaft Position – Timing Over-Advanced or System Performance Bank 2) detected by the ECM.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.