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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.

By type

By component

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Bulletins, newest first
07-155-19R2019-08-06. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This bulletin announces a design change made to the PRG control module. This change is in response to a limited number of customer concerns regarding the rear gate not opening when operating the gate switch or dashboard switch on the vehicle or the button on the key fob. This condition is also accompanied by three short beeps. Logic changes have been incorporated into the new module to ensure proper operation of the PRG system.
15-243-192019-08-06. Service bulletin. ELECTRICAL SYSTEM. This service information bulletin provides a procedure for customizing the maintenance period settings of the MFD. When accessing the maintenance period information on the SSM4, the maintenance interval default values for mileage and number of months are different from those displayed on the MFD. This procedure describes how to synchronize the MFD and SSM4 values to insure proper customer notification.
02-163-16R2019-07-22. Service bulletin. ENGINE. 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.
16-122-192019-07-22. Service bulletin. POWER TRAIN. This Service Information bulletin provides an updated procedure to follow when diagnosing / repairing a DTC P0842: ?TRANSMISSION FLUID PRESSURE SENSOR/SWITCH ?A? CIRCUIT LOW?.
18-196-192019-07-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. The tables contained within this bulletin are to be used as guides for becoming aware of the latest changes.
12-265-192019-07-22. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a design change made to the sunglasses holder portion of the EyeSight camera cover. In rare cases, the sunglasses holder may bind or otherwise not operate smoothly when trying to open and / or close it. The mechanism has been changed in the area circled in the illustration below to eliminate binding and provide smooth operation during opening and closing.
WUI-942019-07-16. Service bulletin. POWER TRAIN; POWER TRAIN:DRIVELINE:DRIVESHAFT. Subaru of America, Inc. is recalling certain 2019 model year Ascent vehicles. A total of 166 U.S. vehicles are affected by this recall. This recall involves replacement of the propeller shaft assembly.
07-143-18R2019-07-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; STRUCTURE. This bulletin announces a change made to the PRG control module. This change is in response to a limited number of customer concerns regarding the PRG reversing direction before reaching the fully open position. The control module senses that an object is caught in the PRG and engages the system?s reverse (safety) function. The new PRG control modules contain improved operating logic to correct this condition.
15-242-192019-07-01. Service bulletin. EQUIPMENT. This Service Information bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system?s remote access features on all 2019 vehicles with Gen 2 Telematics. It is STRONGLY suggested both Technicians and Service Advisors read through this material carefully and in its entirety as the intent of this tool is to help Service Department staff enhance Customer Satisfaction, save valuable time and in some cases, reduce unnecessary component replacements.
Subaru Tech Tips2019-07-01. Service bulletin. EQUIPMENT. Subaru Service and Technical Support Line Newletter.
15-221-18R2019-07-01. Service bulletin. EQUIPMENT. This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3.0 and 3.1 Navigation and Display Audio systems. We will continue to add to this bulletin as more information becomes available.
15-235-18R2019-07-01. Service bulletin. EQUIPMENT. This bulletin announces availability of new audio system amplifiers to address the following operating concerns with the Harman Kardon Gen 3 infotainment system: Symptom 1: No audio output is heard but, the volume level displayed changes when turning the knob Symptom 2: Audio volume increases to maximum intermittently without turning the knob Symptom 3: A buzzing, screeching or crackling-type sound is heard coming through the speakers.
14-22-16R2019-07-01. Service bulletin. EQUIPMENT. To help reduce confusion and increase technician efficiency, Subaru of America, Inc. (SOA) has developed the following cross reference list to help locate the appropriate Special Service Tool.
GEN 3-12019-05-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Immediately discontinue the use of latest 2019 MY Gen 3.1 Harman Software update.
15-236-18R2019-05-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 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 above. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head unit installation. It is VERY IMPORTANT to read and understand this information completely to understand all changes from prior releases before proceeding.
15-228-18R2019-05-28. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank).
15-238-192019-05-28. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Service Information bulletin is in response to a small number of customer concerns regarding the audio unit not being able to play certain types of audio Compact Discs (CDs). Harman Gen 3.0 head units which have previously received software updates (see claims history) and Gen 3.1 head units (used in 2019MY year vehicles) cannot play ?CD Extra? or ?Enhanced CD? -type audio CDs.
15-229-18R2019-05-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin provides troubleshooting steps to follow when diagnosing clock-related customer concerns. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting.
02-163-16R2019-05-28. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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.
11-190-19R2019-05-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. This bulletin announces availability of ECM reprogramming files to optimize the ECM. This bulletin announces availability of ECM reprogramming files to optimize the ECM. The new files contain logic which will revise: (1) the ECM detection of DTC U0122; (2) the EGR flow rate to address a limited number of customer concerns about a slight hesitation felt while driving at highway speeds and using the cruise control.
16-120-192019-05-28. Service bulletin. EQUIPMENT:MECHANICAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides a procedure to follow for addressing customer concerns of a shuddering condition or chattering -type sound heard or felt when making sharp turns. If an applicable vehicle presents with the condition as described, it is recommended to perform the transfer clutch break-in procedure as described.
15-241-192019-05-20. Service bulletin. STRUCTURE:BODY:BUMPERS. This Service Information bulletin provides recommendations for removing stains from the rear bumper cover on the 2019MY Ascent when using a mild automotive detergent does not provide the desired results. There have been reports received describing difficulty removing stains from the accessory?s chrome finish.
07-149-192019-05-20. Service bulletin. AIR BAGS. This Service Information bulletin serves a quick reminder to always perform the Clear Memory function of the Airbag system using the Subaru Select Monitor 4 after replacement of any airbag system sensor. Failure to do so will most likely result in the sensor-related DTC(s) remaining in memory, Airbag warning light illumination and possible unnecessary component replacement. Clearing DTCs after a repair then confirming codes do not return is the most effective method of verifying a proper repair and should always be performed.
02-178-18R2019-03-25. Service bulletin. EQUIPMENT. This Service Information bulletin announces a design change made to the rubber timing hole access plug to improve its retention and prevent water intrusion into the converter case.
11-190-192019-03-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). This bulletin announces availability of ECM reprogramming files to optimize the ECM. The new files contain logic which will revise: ? the ECM detection of DTC U0122 ? the EGR flow rate to address a limited number of customer concerns about a slight hesitation felt while driving at highway speeds and using the cruise control.

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