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Service bulletins for the 2026 Subaru Ascent

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.

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

By type

By component

By trouble code

Bulletins, newest first
09-141-262026-10-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. 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.
SubaruNet Announcement (M2026-10-05. Other. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
SubaruNet Announcement (T2026-10-05. Other. POWER TRAIN; ELECTRICAL SYSTEM. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
13-109-262026-10-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides paint code information for 2027 model year vehicles.
SubaruNet Announcement (C2026-10-05. Other. UNKNOWN OR OTHER. This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and adjustments.
15-333-25R2026-10-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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.
15-304-22R2026-10-05. Service bulletin. ELECTRICAL SYSTEM. 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.
12-258-25R2026-10-05. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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.
SubaruNet Announcement (W2026-10-05. Other. UNKNOWN OR OTHER. This announcement provides an update to the WRH-26 certification label recall.
WRH-26R2026-09-03. Service bulletin. UNKNOWN OR OTHER. Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model year Crosstrek Hybrid vehicles, 2025-2026 model year Forester & Forester Hybrid vehicles, and 2019- 2026 Ascent vehicles due to incorrect information listed on the certification label. This is an revised version of the original bulletin.
02-196-26R2026-09-03. Service bulletin. ENGINE. This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.
15-308-23R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. 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.
SubaruNet Announcement (C2026-09-03. Other. ELECTRICAL SYSTEM; POWER TRAIN. This Announcement provides diagnostic assistance for CVT issues.
15-305-22R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed. This is an revised version of the original bulletin.
15-304-22R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. 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.)
Article Locator2026-09-03. Other. ELECTRICAL SYSTEM. Techtips newsletter locator index.
15-333-25R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. 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
SubaruNet Announcement (P2026-08-04. Other. STRUCTURE:BODY; UNKNOWN OR OTHER. WRH-26 Certification Label Non-Compliance Recall- Parts and SSLP Process Updates.
SubaruNet Announcement (V2026-08-04. Other. UNKNOWN OR OTHER. This announcement provides WRH-26 recall information for owner contact and a vehicle disclosure form.
SubaruNet Announcement (C2026-08-04. Other. UNKNOWN OR OTHER. This announcement provides WRH-26 recall information for customers.
SubaruNet Announcement (v2026-08-04. Other. UNKNOWN OR OTHER. This announcement provides information on WRH-26 affected CPO and Used Vehicle Inventory.
WRH-26R2026-08-04. Service bulletin. UNKNOWN OR OTHER. Subaru of America, Inc. (Subaru) has initiated a non-compliance recall for certain 2026 model yearCrosstrek Hybrid vehicles, 2025-2026 model year Forester & Forester Hybrid vehicles, and 2019- 2026 Ascent vehicles due to incorrect information listed on the certification label. (This is an revised version of the original bulletin.)
SubaruNet Announcement (W2026-08-04. Other. UNKNOWN OR OTHER. This announcement provides an update for retailer inventory affected by the WRH-26 non-compliance recall.
SubaruNet Announcement (W2026-08-04. Other. UNKNOWN OR OTHER. This announcement provides information on a temporary process for addressing affected SSLP vehicles under the WRH-26 recall.
SubaruNet Announcement (2026-08-04. Other. UNKNOWN OR OTHER. This announcement is to inform retailers of the non-compliance recall/stop sale parts update and repair procedure.

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