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Service bulletin 15-308-23R

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11024869
Published by NHTSA2025-11-04
Manufacturer's number15-308-23R
Manufacturer's date2025-10-28
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or frequent jump-starts.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
SEAT COVER UNLIMITED SEAT COVER UNLIMITED
SUBARU 64669AC260MU
SUBARU 64669AC360MU
SUBARU 64669AC370MU
SUBARU 64669AC380MU
SUBARU 64669AC390MU
SUBARU ASCENT2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU B9 TRIBECA2006, 2007, 2008, 2009, 2010, 2011, 2012
SUBARU BAJA2003, 2004, 2005, 2006
SUBARU BRZ2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
SUBARU CROSSTREK2012 to 2015
SUBARU CROSSTREK2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU CROSSTREK HYBRID2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
SUBARU FORESTER2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU IMPREZA2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU IMPREZA STI2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
SUBARU IMPREZA WRX2015 (the catalog's model; the bulletin names a series or trim of it)
SUBARU LEGACY2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU OUTBACK2001 to 2004
SUBARU OUTBACK2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
SUBARU OUTBACK SPORT2006 (the catalog's model; the bulletin names a series or trim of it)
SUBARU OUTBACK SPORT2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
SUBARU SAFETY BELTS
SUBARU SOLTERRA2023, 2024, 2025
SUBARU TRIBECA2013 to 2014
SUBARU WAGON2002 to 2003
SUBARU WRX2002 to 2014
SUBARU WRX2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
SUBARU WRX STI2004 to 2005
SUBARU WRX STI2008 to 2014
SUBARU WRX STI2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
SUBARU XV CROSSTREK2012, 2013, 2014, 2015
SUBARU XV CROSSTREK2016 to 2017
SUBARU XV CROSSTREK2022 to 2024
SUBARU XV CROSSTREK HYBRID2014, 2015 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20236072023-11-09. Electrical
20234352023-08-04. Electrical
23V5510002023-08-04. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
20230622023-02-14. Electrical
23V0800002023-02-14. ELECTRICAL SYSTEM:12V/24V/48V BATTERY
20227032022-12-08. Electrical
22V9070002022-12-08. ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH
22V4730002022-07-01. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM:WIRING
20212282021-04-15. Electrical
21V2640002021-04-15. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
09-141-262026-10-05. Service bulletin. This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.
07-244-262026-10-05. Service bulletin. This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.
SubaruNet Announcement (M2026-10-05. Other. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
SubaruNet Announcement (T2026-10-05. Other. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
18-244-262026-10-05. Service bulletin. "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circuit"
15-333-25R2026-10-05. Service bulletin. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.
15-322-25R2026-10-05. Service bulletin. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system. This is an revised version of the original bulletin.
15-304-22R2026-10-05. Service bulletin. This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
12-269-25R2026-10-05. Service bulletin. This bulletin announces the service procedures to be followed when encountering instances of water intrusion from the sunroof area.This is an revised version of the original bulletin.
12-258-25R2026-10-05. Service bulletin. This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models. This is an revised version of the original bulletin.