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Service bulletins for the 2020 Subaru WRX

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.

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

By type

By component

By trouble code

Bulletins, newest first
Subaru Tech Tips2020-05-04. Service bulletin. ELECTRICAL SYSTEM. Subaru's QMR of the month winner.
15-219-18R2020-05-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin is designed to address an error code 202 and/or 204 when attempting to complete the STARLINK Telematics subscription process.
07-173-202020-04-02. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This Service Information Bulletin provides insight on how to address a customer concern of the rear hatch, Power Rear Gate (PRG) or trunk release operating (or finding the PRG/trunk open unexpectedly after parking) without a specific input (button press) from the operator.
15-249-19R2020-04-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
17-17-13R2020-04-02. Service bulletin. AIR BAGS; EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
07-75-13R2020-04-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models.
18-199-202020-04-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING. The purpose of this bulletin is to provide a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
07-169-202020-03-03. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin describes a change made to the labels applied to the push to start switches used on the models listed.
15-130-08R2020-03-03. Service bulletin. EQUIPMENT. This bulletin details an important regulation issued by the National Highway Traffic Safety Administration (NHTSA) which impacts the way some vehicles with accessories are sold. This regulation applies to any automobile retailer installing accessories on a vehicle prior to its first sale.
15-236-18R2020-03-03. Service bulletin. ELECTRICAL SYSTEM. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.
03-83-20R2020-03-02. Service bulletin. POWER TRAIN. This bulletin announces availability of new shift forks and the corresponding sleeve and hub assembly to address isolated customer concerns of a rattling / vibration -type sound from the shift knob. The sound is primarily reported while driving in 4th gear between 1900 and 2500 rpm.
11-199-202020-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). The new logic will address isolated concerns of a hard start condition occurring in cold weather (+10 degrees Fahrenheit or lower) and / or high-altitude areas. When this scenario occurs, the A/F learning control values move toward lean.
15-256-19R2020-02-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U).
15-255-19R2020-02-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The first TomTom map update for Gen 3.1 Harman navigation equipped vehicles was made available.
17-17-13R2020-02-05. Service bulletin. AIR BAGS; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
Subarunet Announ2020-01-07. Service bulletin. STRUCTURE. Required S209 Under Spoiler Installation.
15-236-18R2020-01-07. Service bulletin. EQUIPMENT. Reprograming file availability for optimization of Harman Gen 3.1 Audio and Navigation Head Units.
15-249-19R2020-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet.
15-220-18R2019-12-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and / or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit.
15-231-18R2019-12-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides troubleshooting steps to use when diagnosing specific and general audio/sound related concerns. Please start by completing the Harman Investigation Guide-Questionnaire as it gathers important details which will assist you with this diagnosis and is required should the condition not be resolved by this troubleshooting. Once the questionnaire is completed, follow the question flow based on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning to understand the flow for the listed concerns.
15-230-18R2019-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns involving Bluetooth (BT) functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern. Please apply the information captured in the checklist to the Harman Investigation Guide Questionnaire. If the concern you have is not listed, check the Service Manual “Infotainment (Diagnostics) - Diagnostics with Phenomena” section as a starting point.
15-228-18R2019-12-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank). Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern. If the concern you have is not listed, check the Service Manual “Infotainment (Diagnostics) > Diagnostics with Phenomena” section as a starting point.
15-247-19R2019-12-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This Service Information Bulletin announces availability of a map update which includes new software to address a route searching error. A “Route Calculation Unsuccessful” message may be displayed when the selected route crosses state borders (e.g. Route 53 which crosses between Alabama and Tennessee).
15-227-18R2019-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns of the Navigation system’s functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern.
15-226-18R2019-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns regarding USB functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern.

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