Service bulletin 15-308-23R

Manufacturer communication, from NHTSA Manufacturer Communications

Published by NHTSA: Sep 3, 2026
Manufacturer: SUBARU
NHTSA ID: 11036807
NHTSA category: Service Bulletin/Repair Instructions
Applies to, as stated by NHTSA: SEAT COVER UNLIMITED SEAT COVER UNLIMITED (model year not stated); SUBARU 64669AC260MU (model year not stated); SUBARU 64669AC360MU (model year not stated); SUBARU 64669AC370MU (model year not stated); SUBARU 64669AC380MU (model year not stated); SUBARU 64669AC390MU (model year not stated); SUBARU ASCENT 2019-2026; SUBARU B9 TRIBECA 2006-2012; SUBARU BAJA 2003-2006; SUBARU BRZ 2013-2026; SUBARU CROSSTREK 2012-2026; SUBARU CROSSTREK HYBRID 2016-2023, 2026; SUBARU FORESTER 2002-2026; SUBARU FORESTER HYBRID 2025-2026; and 16 more models
Component, as stated by NHTSA: ELECTRICAL SYSTEM

Text of the manufacturer communication

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.This is an revised version of the original bulletin.

Manufacturer document number: 15-308-23R
Date of the communication: 2026-08-20

View original source on NHTSA.gov

Documents filed with NHTSA (PDF)

Bulletin

NHTSA reuses some ID numbers across record types. If its page lists more than one record, this one is the manufacturer communication dated Sep 3, 2026.

For the 2020 Subaru Outback

Premium

Worth knowing

Relevance of 81% and attention of 53% are one half or more. Interrupt probability of 32% is under one half.

Vehicle relevance: 81%
Attention: 53%
Interrupt probability: 32%

Importance to this owner: 2.4 of 4, worth knowing
Vehicle area the notice is about: Electrical

This manufacturer communication appears highly relevant to this vehicle configuration. It is worth knowing and does not call for an interruption.

Decided by jev-1.13.0 in 137 ms from 2,185 input tokens. Jev returns these figures and nothing else. It gives no reasons, and none are written for it here. The figures describe how relevant the notice is, not the condition of any vehicle.

Checked by code against NHTSA's fields

A plain comparison with the structured fields NHTSA filled in. Separate from Jev's decision.

YesNHTSA names this make

YesNHTSA names this model (listed as OUTBACK)

YesNHTSA lists model year 2020 for this model

The same notice, every vehicle

Relevance	Attention	Interrupt	State
81%	53%	32%	Worth knowing
2%	8%	7%	Ignored
2%	9%	7%	Ignored
2%	8%	9%	Ignored
2%	10%	8%	Ignored
2%	12%	8%	Ignored
2%	11%	8%	Ignored
2%	14%	8%	Ignored
2%	10%	8%	Ignored
2%	8%	7%	Ignored
2%	10%	10%	Ignored
2%	15%	11%	Ignored
2%	9%	8%	Ignored
2%	9%	7%	Ignored
2%	11%	8%	Ignored
2%	10%	7%	Ignored

Select a vehicle to see its attention and interrupt figures above.