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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

Bulletins, newest first
02-170-172018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin announces part information for new Active Valve Control System (AVCS) oil control solenoid valves (OCV) which contain a redesigned internal oil seal. The new seal will eliminate potential oil seepage into the wire harness connector portion of the valve. If oil seeps into the connector, over time, the Check Engine lamp may illuminate and set various AVCS-related DTCs.
UPDATE - Removal2018-03-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). The corrected update files are now available for download from Subarunet. TSB 15-20516R has been revised with new file names where applicable and re-posted to STIS.
F10-Gen2-NAV-15-2018-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TECHNICAL SUPPORT GUIDE FOR NAVIGATION AND AUDIO F10 GEN2 SYSTEMS.
16-111-182018-03-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This bulletin announces reprogramming file availability to optimize the Transmission Control Module (TCM) used with the TR580 CVT. Contamination in a fluid pressure solenoid valve can cause a DTC P0841. The new logic will allow the solenoid to operate in a manner enabling it to discharge the contamination.
15-216-182018-03-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 50TH ANNIVERSARY EDITIONS ONLY. This Service Information bulletin provides detailed part information along with installation instructions for the optional 2018MY 50th Anniversary badges designed to commemorate 50 Years of Subaru in America.
15-215-182018-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Models with FujitsuTEN (F10) Gen 2.0 / 2.1 Navigation or Display Audio Head Units ONLY. This bulletin provides a repair procedure to address specific, confirmed customer concerns of: ? Audio output interruption every 2-3 seconds when listening to AM or FM radio broadcasts ? No audio output at all when attempting to listen to a HD Radio broadcast.
15-214-172018-03-13. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
15-205-16R2018-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving ?Gen 2? F10 Navigation and Display Audio units with 7? display. The procedure will involve downloading the applicable software update files then loading them onto two flash drives for audio unit installation.
12-231-182018-03-13. Service bulletin. STRUCTURE:BODY. ( 2017-2018MY Impreza - 5 Dr Only)
13-100-172017-09-14. Service bulletin. EQUIPMENT. Note: This is the most accurate information available at the time of printing. Various paint manufacturers designate their own stock numbers and coding information although many of the major suppliers are now using the SOA paint codes to help eliminate possible confusion. Their color formulations are updated on a continual basis. Some vendors may have different color names than those provided to them by SOA. Be sure to double-check the codes and formulas beforehand to help insure an accurate color match. Should discrepancies arise, please refer your Body Shop contact inquiries to the specific paint vendor or their jobber / supplier for the most updated formula information. The paint coding information can be found on the vehicle's VIN plate.
12-227-172017-09-14. Service bulletin. STRUCTURE. This Service Information bulletin announces a design change made to the upper front grille. The two small retaining slide bolts /cap nuts previously used have been eliminated.

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