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Service bulletins for the 2019 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
15-314-23R2025-07-01. Service bulletin. ELECTRICAL SYSTEM. This Bulletin is to inform you of the availability of the new auxiliary USB terminal and adapter cord designed to address cases of intermittent communication loss when using Apple CarPlay and/or Android Auto application connected via the auxiliary USB terminal port (2-port type) to Gen 3.1 Harman Head Unit.
10-105-25R2025-07-01. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
15-236-18R2025-07-01. Service bulletin. ELECTRICAL 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 utilized in the models as listed
15-251-19R2025-07-01. Service bulletin. ELECTRICAL SYSTEM. This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
15-322-25R2025-06-03. Service bulletin. ELECTRICAL SYSTEM. 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.
12-240-22R2025-06-03. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. This bulletin announces the repair procedures for the left and right-side horns to address DTC B1610 (Front Sub Sensor RH Failure) detected when the horns are operated shortly after engine start up.
10-105-25R2025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak. To improve Fixed Right First-Time (FRFT) and customer satisfaction, SOA is introducing a new procedure and fail code for first-time suspected A/C refrigerant leaks for cases when a Technician is unable to find the source of the leak or believes there was a potential factory under charge of the A/C system refrigerant.
15-251-19R2025-05-02. Service bulletin. ELECTRICAL SYSTEM. This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
07-189-21R2025-05-02. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and / or the door glass either not closing or closing very slowly.
15-322-25R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. 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 above listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system.
12-265-252025-04-01. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. This bulletin announces design changes made to the Power Rear Gate Drive (PRG) Unit to address concerns of the power rear gate being inoperative.
15-304-22R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.
15-219-18R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully.
15-322-25R2025-03-04. Service bulletin. ELECTRICAL SYSTEM. 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.
07-189-21R2025-03-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and/or the door glass either not closing or closing very slowly.
15-251-19R2025-03-04. Service bulletin. ELECTRICAL SYSTEM. "This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16."
Subarunet Announcement2025-02-04. Other. ELECTRICAL SYSTEM. As part of Subaru's dedication to customer satisfaction, Subaru of America, Inc. (SOA) is announcing a Warranty Extension of the New Vehicle Limited Warranty coverage for the CP1 & Gen 3.1 Infotainment head units for the models listed.
15-322-252025-02-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin gives information on extended New Car Limited Warranty for CP1 and Gen 3.1 Head Units.
RC5 Head Unit OTA2025-02-04. Other. ELECTRICAL SYSTEM. A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.
11-205-252025-02-04. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin announces the repair procedures to be followed when DTC P1449 (EVAP System Clog Detected) is detected by the Engine Control Module (ECM).
07-59-07R2025-01-03. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This bulletin is for information purposes only.The bulletin adresses design changes of the headlamps and rear combination lamps, where moisture and or condensation may develop on the inside of the lamp lenses.
16-150-24R2025-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "This bulletin announces availability of new reprogramming files developed to address the two symptoms described below: SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air conditioning on. SYPMTOM 2: A shudder is felt from the powertrain along with a screeching type of sound. NOTE: Both of these symptoms are not related with a fault code. The new files contain enhanced software optimizing input clutch application along with enhanced hydraulic pressure control during braking/deceleration."
16-150-24R2024-12-03. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. "This bulletin announces availability of new reprogramming files developed to address the two symptoms described below: SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air conditioning on. SYPMTOM 2: A shudder is felt from the powertrain along with a screeching type of sound. NOTE: Both of these symptoms are not related with a fault code."
17-20-242024-12-03. Service bulletin. ELECTRICAL SYSTEM; SEAT BELTS. This bulletin announces a design change made to the second row inner seat belt buckle assembly to address cases of the seat belt indicator warnings not turning off after the buckle is fully latched.
SubaruNet Announcement2024-12-03. Other. ELECTRICAL SYSTEM. This annocement is to inform dealers to the Gen 3.1 Head Unit OTA will be available via Wi-Fi. The update will take place in multiple batches with the first beginneing November 15th and the last being Decemeber 3rd. This update is for approximatelt 714,000 VINs.

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