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
| 15-229-18R | 2019-12-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides troubleshooting steps to follow when diagnosing clock-related customer concerns. 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. |
|---|---|
| 15-236-18R | 2019-12-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); 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 above. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head unit installation. |
| 15-221-18R | 2019-12-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3.0 and 3.1 Navigation and Display Audio systems. We will continue to add to this bulletin as more information becomes available. |
| 15-249-19R | 2019-11-01. 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. |
| 15-253-19 | 2019-11-01. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin provides the answer to potential inquiries regarding the STARLINK app being unable to play music files stored on a customer’s Android® phone / device through the head units (H/U) used in the applicable models listed above. This information is applicable ONLY to Android devices operating with Operating System (OS) version 10. IOS (AppleTM) devices are not affected. |
| 15-249-19 | 2019-10-01. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; 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. |
| 04-17-17R | 2019-08-30. Service bulletin. STEERING. This bulletin provides a service procedure to address isolated customer concerns of a rattling sound identified as coming from the Electronic Power Steering (EPS) gear box (steering rack) assembly. The repair (when applicable) involves installation of a new tension spring for the worm gear to reduce / eliminate the condition. It should be noted the condition is NOT detrimental to the operation of the EPS system. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.