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Service bulletins for the 2020 Subaru Impreza

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
15-236-18R2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Reprogramming File Availability for Optimization of Harman Gen 3.1 and Gen 3.1α Audio and Navigation Head Units.
01-168-09R2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The purpose of this bulletin is to provide replacement key and immobilizer information.
16-132-20R2021-01-05. Service bulletin. POWER TRAIN; EQUIPMENT. This Service Information Bulletin provides updated diagnostic procedures to follow when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions.
15-236-18R2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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.
Subarunet Announ2021-01-05. Service bulletin. TIRES. Please be advised that Continental Tire the Americas, LLC (CTA) is currently in the process of mailing recall notification letters to potentially affected owners of 2020MY Subaru Impreza vehicles.
15-219-18R2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information related to error code(s) 202 and/or 204 generated during the Gen 2 telematics subscription process.
12-306-20R2021-01-05. Service bulletin. SEATS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides a repair procedure to address a squeaking sound coming from the backrest hinge area of the front seats. The procedure applies to both manually and power operated seat assemblies.
16-131-202020-12-05. Service bulletin. POWER TRAIN. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
15-255-19R2020-12-05. Service bulletin. EQUIPMENT. Map update for Harman Gen 3.1 Navigation Equipped Head Units.
WRG-202020-12-05. Service bulletin. TIRES. Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines, within the filing of NHTSA safety recall ID 20T-018. One of the tire lines included in CTA’s recall, the Continental ProContactTM TX P205/55R16 89V tire, was an OE tire for Subaru installed on certain 2020 MY Impreza vehicles equipped with 16-inch wheels. Please note, CTA notified Subaru that only one (1) tire with this condition may have been supplied to Subaru, but the recall includes 5,590 20MY Impreza vehicles based on traceability of tire production week and mold number, to ensure that the potentially defective tire is captured.
Subarunet Announ2020-12-05. Service bulletin. WHEELS; TIRES. Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines, within the filing of NHTSA safety recall ID 20T-018. One of the tire lines included in CTA’s recall, the Continental ProContactTM TX P205/55R16 89V tire, was an OE tire for Subaru installed on certain 2020 MY Impreza vehicles equipped with 16-inch wheels. Please note, CTA notified Subaru that only one (1) tire with this condition may have been supplied to Subaru, but the recall includes 5,590 20MY Impreza vehicles based on traceability of tire production week and mold number, to ensure that the potentially defective tire is captured.
12-296-20R2020-12-05. Service bulletin. EQUIPMENT; SUSPENSION; STRUCTURE:FRAME AND MEMBERS; EQUIPMENT ADAPTIVE/MOBILITY. This Service Information Bulletin outlines design changes made to the rear frame section weld nuts and the mounting bolts used to secure the rear stabilizer bar brackets.
SubaruNet Announ2020-12-05. Service bulletin. EQUIPMENT; TIRES. STOP SALE/Safety Recall: WRG-20 Continental Tire Recall 20T-018 Please be advised that Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines.
2163162020-11-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; EQUIPMENT. This Service Information bulletin provides new inspection and repair procedures for AVCS (Active Valve Control System) -related DTCs on the FA and FB engine equipped models listed above. The applicable Service Manuals will be revised with this new information in the near future.
15-240-19R2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency.
10-19-202020-11-05. Service bulletin. EQUIPMENT. 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.
09-73-202020-11-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides a revised service procedure to follow when repairing minor coolant seepage identified to be coming from the air plug at the top of the radiator.
07-183-202020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin provides corrected and updated procedures to follow when replacing the combination meter assembly.
12-302-202020-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SEATS; EQUIPMENT. This bulletin announces a design change made to the front seat backrest frame assemblies in response to a limited number of customer reports of a squeaking sound heard when leaning back in the front seats.
05-78-202020-11-05. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed.
18-201-202020-11-05. Service bulletin. EQUIPMENT. The purpose of this bulletin is to provide a desription of current changes to service manuals available via the Subaru Technical Information System (STIS) web site.
Subaru Starlink2020-10-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Update your STARLINK Multimedia Software and Navigation Maps.
Subaru Starlink2020-10-05. Service bulletin. ELECTRICAL SYSTEM. Update for STARLINK Multimedia Software. (with 7-inch or 8-inch display)
18-200-202020-10-05. Service bulletin. EQUIPMENT. This bulletin provides a description of current changes to Service Manuals.
09-72-20R2020-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin announces availability of new intake manifold assemblies.

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