Service bulletins for the 2018 Subaru Impreza
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.
528 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 17-17-13R | 2019-03-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; AIR BAGS. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system. |
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| 15-211-17R | 2019-03-11. Service bulletin. 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 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. |
| WUA-86R | 2019-03-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to update the Harman Kardon head unit on certain vehicles with the latest version of software. |
| 15-211-17R | 2019-02-25. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3 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. |
| 15-235-18 | 2019-02-19. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; 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. |
| 16-112-18R | 2019-02-19. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park. The cause is contamination of the Park-Range switch internal components. |
| 15-220-18R | 2018-12-10. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and/or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit. |
| 03-82-18 | 2018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. This Service Information bulletin announces a design change to the clutch release bearing used on the models as listed above. During assembly of the bearing, a different type of grease is used which has a higher resistance to heat. In cases where the operator keeps a foot on the clutch pedal for extended periods, an increased amount of heat is generated which can cause the grease inside the bearing to deteriorate. In a case of prolonged clutch pedal application, seizure of the bearing can occur with potential damage to other related components. |
| 10-89-18 | 2018-12-10. Service bulletin. STRUCTURE:FRAME AND MEMBERS. This bulletin provides a procedure and precautions to use when addressing a customer concern of an improper fit or gap condition of the center vent grille assembly as shown in the comparison photos below. |
| 15-214-17R | 2018-12-10. Service bulletin. EQUIPMENT. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet. |
| 05-66-18 | 2018-12-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SUSPENSION. This Service Information bulletin announces a running change to the four (4) front suspension crossmember retaining bolts to improve production efficiency. The new bolts have an increased length and are easily identifiable with their ?cone? shape on the threaded end. |
| 15-211-17R | 2018-12-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); 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 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. |
| 07-141-18 | 2018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This Service Information Bulletin announces a change to the retaining clip used to secure the engine harness on the models listed above. The change to a ?Tree Type? clip from an ?Anchor Type? was made to secure the harness tighter and improve assembly line productivity. Comparison images are provided below. |
| 07-140-18 | 2018-12-10. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST COMMUNICATIONWITH ACTIVE GRILLE SHUTTER MODULE ?A?. Water intrusion into the harness wiring leading to connector B63 for the Active Grille Shutter (AGS) may lead to corrosion of the harness wiring and / or connector terminals and result in a communication loss with the ECM. |
| 16-117-18 | 2018-12-10. Service bulletin. POWER TRAIN. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Powertrain Warranty coverage for the Continuously Variable Transmission (CVT) on the above listed models and model years from the original five (5) years or sixty thousand (60,000) miles (whichever comes first) to ten (10) years or one-hundred thousand (100,000) miles (whichever comes first). This change is not in response to any specific condition, rather it is to provide customers with added assurance regarding the function and overall performance of their CVT. |
| 15-220-18R | 2018-12-10. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and/or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit. |
| 10-89-18 | 2018-12-10. Service bulletin. STRUCTURE. This bulletin provides a procedure and precautions to use when addressing a customer concern of an improper fit or gap condition of the center vent grille assembly as shown in the comparison photos below. |
| 05-66-18 | 2018-12-10. Service bulletin. SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY. This Service Information bulletin announces a running change to the four (4) front suspension crossmember retaining bolts to improve production efficiency. The new bolts have an increased length and are easily identifiable with their ?cone? shape on the threaded end. |
| 15-211-17R | 2018-12-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; 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 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. |
| 07-141-18 | 2018-12-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This Service Information Bulletin announces a change to the retaining clip used to secure the engine harness on the models listed above. The change to a ?Tree Type? clip from an ?Anchor Type? was made to secure the harness tighter and improve assembly line productivity. Comparison images are provided below. |
| 07-140-18 | 2018-12-10. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST COMMUNICATIONWITH ACTIVE GRILLE SHUTTER MODULE ?A?. Water intrusion into the harness wiring leading to connector B63 for the Active Grille Shutter (AGS) may lead to corrosion of the harness wiring and/or connector terminals and result in a communication loss with the ECM. |
| 16-117-18 | 2018-12-10. Service bulletin. POWER TRAIN. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Powertrain Warranty coverage for the Continuously Variable Transmission (CVT) on the above listed models and model years from the original five (5) years or sixty thousand (60,000) miles (whichever comes first) to ten (10) years or one-hundred thousand (100,000) miles (whichever comes first). This change is not in response to any specific condition, rather it is to provide customers with added assurance regarding the function and overall performance of their CVT. |
| 15-211-17R | 2018-11-05. Service bulletin. 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 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. |
| 04-22-18 | 2018-11-05. Service bulletin. STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. This bulletin announces availability of a new electric power steering (EPS) rack assembly. The new EPS assembly addresses a limited number of customer concerns involving a rattling-type sound from the steering which may be heard when driving on rough roads. |
| WTT-79R | 2018-11-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE. Subaru of America, Inc. (SOA) is initiating a service program for certain 2017-2019 MY Impreza vehicles, and certain 2018-2019 MY Crosstrek vehicles. This service program involves installation of reprogramming files to optimize the ECM. Subaru has determined that due to an engine programming issue, the affected vehicles may stall when coming to a stop or driving at a low speed (under 15 MPH) when the air conditioning is operating at maximum capacity. Under certain hot weather conditions, when the vehicle?s air conditioning is running at full capacity, the engine programming may not account for the additional load placed on the engine when slowing down or coming to a stop. In some cases, this could cause the engine to stall requiring the driver to immediately restart the vehicle. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.