Service bulletins for the 2021 Subaru Outback
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.
488 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 18-217-22R | 2022-04-05. Service bulletin. EQUIPMENT. This bulletin announces Service Manual corrections for the diagnostic trouble tree for DTC B1788. |
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| Subaru TechTips | 2022-04-05. Service bulletin. ELECTRICAL SYSTEM. Subaru Service and Technical Support Line Newsletter. (QMR of the Month) |
| 15-192-22R | 2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin has been developed to outline the steps for gathering basic essential information during diagnosis and repair of the Infotainment concerns. (Applicable to all models with Harman or Denso CP1 Infotainment). |
| 16-136-22R | 2022-04-05. Service bulletin. POWER TRAIN. This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration. |
| 15-240-19R | 2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns. |
| 07-204-22 | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces tentative Subaru Select Monitor procedure information to follow when replacing and/or diagnosing combination meters. |
| 01-175-16 | 2022-03-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides helpful tips to better utilize the Subaru Select Monitor 4. |
| 16-132-20R | 2022-03-04. Service bulletin. POWER TRAIN. This bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions. |
| 06-83-22 | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This bulletin announces availability of reprogramming files to optimize the Vehicle Dynamic Control Control Module (VDCCM). |
| 09-80-21 | 2022-03-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). This bulletin announces availability of a new thermo control valve assembly. |
| Subarunet Announ | 2022-03-04. Service bulletin. POWER TRAIN. WRK-21 CVT Chain Guide Breakage Recall - Customer communications and rental. |
| 16-136-22R | 2022-02-04. Service bulletin. POWER TRAIN. This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration. |
| 03-87-21 | 2022-02-04. Service bulletin. POWER TRAIN. This bulletin provides a repair procedure for R152 type rear differentials. |
| 18-217-22 | 2022-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin announces Service Manual corrections for the diagnostic trouble tree for DTC B1788. |
| 15-240-19R | 2022-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency. |
| 15-261-20R | 2022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units. |
| 15-259-20R | 2022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. This bulletin provides helpful tips to use when diagnosing customer concerns which may arise when operating the new-generation Denso CP1 Multimedia Navigation (AVN) & Display Audio (DA) systems. |
| 16-132-20R | 2022-02-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION. This bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions. |
| 02-189-22 | 2022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SUMP/TANK:DRAIN PLUG; EQUIPMENT. This Bulletin announces design changes to the engine oil and CVT fluid drain plugs. |
| 15-246-19R | 2022-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. This bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the 2020-22 Legacy and Outback. |
| 15-272-20R | 2022-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. |
| 15-246-19R | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the 2020-22 Legacy and Outback. |
| 15-251-19R | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16. |
| 15-289-21 | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces additional information for the Subaru STARLINK® Owner’s Manual for models equipped with Denso CP1 Gen 4 systems. |
| 15-240-19R | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.