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Service bulletins for the 2014 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
11-169-16R2019-03-25. Service bulletin. ENGINE. This bulletin announces the availability of reprogramming files to optimize the ECM. These new files will address customer concerns of: ? Spark knock (ping) during high intake air temperature operation ? Surge on acceleration due to phantom knock detection ? Check Engine light illumination resulting from DTC P113A and / or P0137 being stored in the ECM memory.
02-134-12R2019-03-11. Service bulletin. ENGINE; EQUIPMENT. The purpose of this bulletin is to announce a change to the specification of the valve springs used in the FB engine. The new springs have different color paint marks to help identify their application.
11-187-182019-02-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. This bulletin announces reprogramming file availability to optimize the ECM and address isolated customer concerns of hesitation on acceleration. The new logic provides enhanced ignition timing control during Exhaust Gas Recirculation (EGR) operation.
07-133-182019-02-19. Service bulletin. ENGINE. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333. The knock sensor for DIT engines is now utilized for NA engines to improve durability and resistance to heat.
02-177-182018-10-01. Service bulletin. EQUIPMENT; ENGINE. In conjunction with the launch of our new Remanufactured FB Engine Short Block Program, SOA would like to reinforce Core Return Policy (See Parts Policy & Procedures Manual ? Section 12.3 Core Returns ? Reman) and provide suggestions for removal and handling of the short block.
02-157-14R2018-10-01. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oilconsumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date.This Warranty Extension will not cover any excessive engine oil consumption found to be a result ofany condition(s) other than those specifically described in this bulletin.This condition must be verified during an inspection and when determined necessary, an oil consumption test performed by an authorized Subaru retailer. SOA will inform vehicle owners this condition may exist via a customer letter.
07-136-182018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. TURBO MODELS ONLY. This bulletin announces availability of new parts to address a limited number of reports involving an engine vibration felt when at idle after the engine is up to operating temperature. In some cases, the above engine misfire DTCs may also result causing the Check Engine light to illuminate in error.
02-160-152018-06-18. Service bulletin. ENGINE AND ENGINE COOLING. This Service Information bulletin provides revised procedures for inspection and measurement of the cylinder block assembly to determine whether or not replacement is necessary. Read through and understand this information completely before proceeding with any repairs to the cylinder block. All Models with FA and FB Engines, 2011MY and Later.
WQW-58R2018-06-11. Service bulletin. ENGINE; ELECTRICAL SYSTEM. 2.0L DIT Models. Revised Recall Bulletin. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. This bulletin includes the service procedure for diagnosis and repair of customer concerns involving engine idle roughness or, in some cases, engine noise and/or damage resulting from spark knock (pre-ignition). The Engine Control Module logic has also been optimized requiring the ECM reprogramming.
02-157-14R-4-28-2018-06-11. Service bulletin. POWER TRAIN; ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Revised TSB. As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oil consumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date.
02-157-14R-4-13-2018-06-11. Service bulletin. ENGINE; POWER TRAIN. Revised TSB. As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oil consumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date.
07-133-182018-06-11. Service bulletin. ENGINE. 2.0L Turbor Models only. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333.
02-173-182018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. 2.0L Turbo Models only. This bulletin announces availability of a special turbocharger air intake duct designed to prevent EXTREMELY RARE occurrence of ice formation from condensation in the duct?s PCV system passages.
07-133-182018-06-11. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 2.0L Turbor Models only. This Service Information Bulletin announces design changes to the engine?s knock sensor which will help improve vehicle assembly line efficiency and increase durability. In some cases, the Check Engine light may illuminate and a knock sensor-related DTC set in the ECM memory: P0327, P0328, P0332 and P0333.
02-173-182018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 2.0L Turbo Models only. This bulletin announces availability of a special turbocharger air intake duct designed to prevent EXTREMELY RARE occurrences of ice formation from condensation in the duct?s PCV system passages.
11-164-162018-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Dated 4/29/2016 although posted on 5/2/2016. 2.0L DI Turbo models only. This bulletin announces the availability of reprogramming files to optimize the ECM. These files will address customer concerns of a slight surging / decrease in engine power condition on light acceleration during high ambient temperatures.
02-157-14R2018-04-16. Service bulletin. ENGINE; POWER TRAIN:MANUAL TRANSMISSION. 2013-14MY Legacy and Outback Models with 2.5L FB Engines, 2011-14MY Forester Models with 2.5L FB Engines, 2015 MY Forester (Manual Transmissions Only), with 2.5L FB Engines, 2012-13 MY Impreza and XV Crosstrek Models with 2.0 FB Engines, 2014-15 MY Impreza and XV Crosstrek Models (Manual Transmissions Only) with 2.0 FB Engine As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oil consumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date. This Warranty Extension will not cover any excessive engine oil consumption found to be a result of any condition(s) other than those specifically described in this bulletin
WQW-58R2018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. This bulletin includes the service procedure for diagnosis and repair of customer concerns involving engine idle roughness or, in some cases, engine noise and/or damage resulting from spark knock (pre-ignition). The Engine Control Module logic has also been optimized requiring the ECM reprogramming. The new logic optimizes the ECM for control of the following parameters: * Change to Fuel Cut control when fuel level is extremely low / near empty * Change to improve idle smoothness / quality * Change to boost pressure control under wide-open throttle (WOT) conditions. Under certain high engine load driving conditions, spark knock can occur which results in elevated cylinder temperatures and pressures. Over time, excessive erosion of the spark plugs and possible damage to the pistons can be consequences of continued operation with these conditions present.
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.
02-157-14R2017-10-27. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Refer to bulletin for engine/transmission type. As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oil consumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date. This Warranty Extension will not cover any excessive engine oil consumption found to be a result of any condition(s) other than those specifically described in this bulletin. This condition must be verified during an inspection and when determined necessary, an oil consumption test performed by an authorized Subaru retailer. SOA will inform vehicle owners this condition may exist via a customer letter. For vehicles within the coverage guidelines listed in this bulletin, customers can schedule an inspection appointment with an authorized Subaru retailer. IMPORTANT: ALWAYS perform a Vehicle Coverage Inquiry on Subarunet to determine eligibility for this Warranty Extension before proceeding. The VIN should also be checked for any open campaigns or recalls at this time.
11-169-162017-10-27. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Turbo models only. This bulletin announces the availability of reprogramming files to optimize the ECM. These new files will address customer concerns of: ? Spark knock (ping) during high intake air temperature operation ? Surge on acceleration due to phantom knock detection ? Check Engine light illumination resulting from DTC P2270 and / or DTC P2270 and / or P0137 being stored in the ECM memory.
02-157-14R2017-10-27. Service bulletin. ENGINE. 2013-14MY Legacy and Outback Models with 2.5L FB Engines - 2011-14MY Forester Models with 2.5L FB Engines - 2015 MY Forester (Manual Transmissions Only) with 2.5L FB Engines - 2012-13 MY Impreza and XV Crosstrek Models with 2.0 FB Engines - 2014-15 MY Impreza and XV Crosstrek Models (Manual Transmissions Only) with 2.0 FB Engines. As part of our dedication to customer satisfaction, Subaru of America, Inc. is initiating a program to extend the original New Car Powertrain Limited Warranty coverage for excessive engine oil consumption on applicable vehicles to 8 years / 100,000 miles from the original warranty start date. This Warranty Extension will not cover any excessive engine oil consumption found to be a result of any condition(s) other than those specifically described in this bulletin. This condition must be verified during an inspection and when determined necessary, an oil consumption test performed by an authorized Subaru retailer. SOA will inform vehicle owners this condition may exist via a customer letter. For vehicles within the coverage guidelines listed in this bulletin, customers can schedule an inspection appointment with an authorized Subaru retailer.
10-84-16R2017-10-27. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:CLUTCH ASSEMBLY; ELECTRICAL SYSTEM. This bulletin announces the availability of a new Air Conditioning compressor / clutch assembly to address customer concerns of the system not operating. Electrical windings located inside the clutch assembly have been changed to eliminate the condition. The service procedure will involve replacement of the A/C compressor and clutch as a complete assembly.
02-157-14R2017-10-27. Service bulletin. ENGINE AND ENGINE COOLING. Revised Service Bulletin: Surface Treatment Change To Oil Control Piston Rings This bulletin announces information regarding a major change to the repair procedures previously outlined in Service Bulletins 02-143-13R, 02-144-13R and 02-145-13R.
WQW582017-10-27. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Subaru of America, Inc. has initiated a Service Program to reprogram the Engine Control Module (ECM) on certain 2015 model year WRX vehicles and certain 2014 and 2015 model year 2.0XT Forester vehicles equipped with a 2.0 liter turbocharged engine, to address a possible pre?ignition issue.

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