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
By trouble code
By topic
Only bulletins with component: Electrical system are shown. Show all
| 07-184-20R | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. This bulletin announces a design change made to the power window main switches. |
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| 15-221-18R | 2021-03-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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 Navigation and Display Audio systems. |
| 15-236-18R | 2021-03-04. Service bulletin. EQUIPMENT; 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. |
| 15-240-19R | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency. |
| 11-202-21R | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of reprogramming files for the Engine Control Module (ECM). |
| 11-202-21 | 2021-03-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This bulletin announces availability of reprogramming files for the ECM. These new files will address DTC P1160 and customer concerns of extended cranking in cold temperatures. |
| 07-155-19R | 2021-03-04. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM; STRUCTURE. This bulletin replaces TSB 07-143-18R and announces additional changes made to the PRG control module. These changes are in response to a limited number of customer concerns regarding the rear gate not opening when operating the gate mounted switch, dashboard switch or the rear gate button on the key fob. |
| Subarunet Announ | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Subaru of America, Inc. (Subaru) is initiating a service program recall to replace the air conditioning pipe in certain 2019 model year Ascent vehicles. |
| 07-184-20R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a design change made to the power window main switches. |
| 16-128-20R | 2021-02-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin announces availability of a new transmission harness for use when diagnosis of DTC P0842 -TRANSMISSION FLUID PRESSURE SENSOR / SWITCH “A” CIRCUIT LOW determines the sensor itself is OK but the transmission wiring harness is NG. |
| 15-219-18R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information related to error code 202 and/or 204 generated during the Gen 2 Telematics subscription process. This bulletin is applicable to all 2019-2021MY vehicles equipped with a Gen. 2 Telematics System. |
| 07-182-20R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES; STRUCTURE:BODY:DOOR. This bulletin provides details regarding the cause of a whining-type sound customers may have concern about when operating their power door locks (lock and/or unlock). |
| 15-266-20R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2 Telematics system equipped Subaru. |
| 15-267-20R | 2021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information related to the telematics system's Automatic Collision Notification (ACN) and Advanced Automatic Collision Notification (AACN) feature operation, diagnostic tips, and best practices. |
| 15-242-19R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM. This 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. |
| 15-236-18R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Reprogramming File Availability for Optimization of Harman Gen 3.1 and Gen 3.1α Audio and Navigation Head Units. |
| 01-168-09R | 2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The purpose of this bulletin is to provide replacement key and immobilizer information. |
| 15-236-18R | 2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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. |
| 15-219-18R | 2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information related to error code(s) 202 and/or 204 generated during the Gen 2 telematics subscription process. |
| WUV07 | 2020-12-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. Subaru of America, Inc. (Subaru) is recalling certain 2019 model year Ascent vehicles in which midjoint of the transmission hydraulic sensor harness was made with dissimilar materials (tinplate and copper) which may cause an oxide film to form. If an oxide film forms, the electrical resistance may increase, potentially causing an incorrect measurement of the hydraulic pressure. If the fluid pressure is measured higher than its actual value, the Transmission Control Unit (TCU) programming was not robust enough to compensate for variation and would instruct the valve to lower the hydraulic pressure, thus potentially reducing the tension on the drive chain. Customers may experience irregular noise and/or vibration while driving, and/or warning lamp illumination. A total of 76,842 U.S. vehicles will be affected by this recall. |
| 15-240-19R | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency. |
| 07-183-20 | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin provides corrected and updated procedures to follow when replacing the combination meter assembly. |
| 05-78-20 | 2020-11-05. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed. |
| 16-128-20R | 2020-11-05. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin announces availability of a new transmission harness for use when diagnosis of DTC P0842 determines the sensor itself is OK but the transmission wiring harness is NG. |
| 07-155-19R | 2020-11-05. Service bulletin. STRUCTURE:BODY:TAILGATE; ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This bulletin replaces TSB 07-143-18R and announces additional changes made to the PRG control module. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.