2018 Subaru Crosstrek Technical Service Bulletins

523 technical service bulletins (TSBs) are on record for the 2018 Subaru Crosstrek. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10171944Feb 21, 2020Electrical system, Equipment. This Service Information bulletin informs of an upcoming correction to the Service Manual involving Gear Position shown in Freeze-Frame Data acquired during Engine diagnosis.
• 10171926Feb 21, 2020Transmission and drivetrain. This bulletin announces availability of new shift forks and the corresponding sleeve and hub assembly to address isolated customer concerns of a rattling / vibration -type sound from the shift knob. The sound is primarily reported while driving in 4th gear between 1900 and 2500 rpm.
• 10171928Feb 19, 2020Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units utilized in the models as listed.
• 10171923Feb 12, 2020Electrical system, Equipment. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10171870Feb 5, 2020Brakes. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to replace brake hoses that may swell due to fluid which can squeeze in between the hose’s inner and outer layers.
• 10171104Jan 31, 2020Equipment, Engine cooling. This Service Information Bulletin announces part number change information for the Positive Crankcase Ventilation (PCV) valves used on the models listed above.
• 10171097Jan 29, 2020Electrical system. This Service Information Bulletin announces part number change information for the ignition coils used on the models listed.
• 10171094Jan 28, 2020Electrical system, Equipment. The first TomTom map update for Gen 3.0 Harman navigation equipped vehicles was made available.
• 10171093Jan 28, 2020Equipment, Electrical system. This bulletin provides a new reprogramming procedure (FOTA) to optimize the Harman Gen 3 Audio and Navigation head units (H/U) utilized in the models
• 10171090Jan 17, 2020Body and structure, Equipment. This bulletin announces availability of new outer door handles to address isolated concerns of the chrome finish peeling.
• 10171085Jan 14, 2020Equipment, Brakes. Part Supply update for part numbers 26592FL010 and 26592FL000.
• 10171082Jan 10, 2020Electrical system. This announcement is in regards to the class action lawsuit regarding Harman Gen 3.0 Audio and Audio/ Navigation Head Units in certain Subaru vehicles.
• 10171081Jan 10, 2020Brakes, Equipment. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to replace brake hoses that may swell due to fluid which can squeeze in between the hose’s inner and outer layers.
• 10171079Jan 9, 2020Brakes, Equipment. Part Supply update for part number 26592FL010
• 10171073Jan 3, 2020Equipment, Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units.
• 10169853Dec 31, 2019Tires. "This bulletin announces availability of reprogramming files to optimize operation of the Tire Pressure Monitor System’s (TPMS) real-time display function. Under certain high-altitude conditions, the tire pressure values displayed in the combination meter may not be accurate. NOTE: The TPMS Real Time display is independent of the actual TPMS function. Should an actual low tire pressure condition occur, the TPMS…
• 10169882Dec 13, 2019Body and structure. This bulletin describes a design change made to the exterior “A” pillar cover. The change involves use of materials in critical areas having added rigidity along with an extra strengthening rib. These changes will prevent the upper corner portion from being deformed should the leading edge of the front door contact it during opening and closing.
• 10169874Dec 12, 2019Exterior lighting. This bulletin announces a design change made to the fog light cover claws to improve their retention. The height of all 5 retaining claws has been increased by .5 mm as shown in the illustration below.
• 10169866Dec 9, 2019Transmission and drivetrain. This bulletin announces a design change to the leather transmission selector lever grip. The change will address a small number of concerns regarding stickiness and / or roughness felt on a portion (Panel A shown in the illustration below) of the grip surface. The new part also enhances parts commonality among models.
• 10169862Dec 5, 2019Engine cooling. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2017-2018 model year Impreza vehicles and certain 2018 model year Crosstrek vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10169827Dec 2, 2019Engine cooling, Electrical system. Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 model year Impreza and 2018-2019 Crosstrek vehicles due to improper Engine Control Module (ECM) programming. A total of 466,205 U.S. vehicles will be affected by this recall.
• 10168632Nov 21, 2019Brakes, Equipment. Owner notification schedule: WUR-03 Impreza & Crosstrek Brake Hose Swelling Customer Satisfaction Program.
• 10168631Nov 21, 2019Electrical system, Equipment. Owner notification schedule: WUQ-02 Impreza/Crosstrek ignition coil reprogramming recall.
• 10168635Nov 20, 2019Brakes, Equipment. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to replace brake hoses that may swell due to fluid which can squeeze in between the hose’s inner and outer layers.
• 10168571Nov 18, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to use when diagnosing specific and general audio/sound related concerns. Please start by completing the Harman Investigation Guide-Questionnaire as it gathers important details which will assist you with this diagnosis and is required should the condition not be resolved by this troubleshooting. Once the questionnaire is completed, follow the question flow based on the…
• 10168567Nov 18, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank). 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. While completing the questionnaire…
• 10168565Nov 18, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns of the Navigation system’s functionality. 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. While completing the questionnaire, follow the question flow based…
• 10168560Nov 18, 2019Electrical system, 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.
• 10168627Nov 15, 2019Electrical system, Equipment. 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. While completing the questionnaire, follow the question flow based on the customer concern.
• 10168574Nov 15, 2019Equipment, Electrical system. This Service Information bulletin provides a procedure to use for addressing a customer concern of a delayed or slow response when using the soft keys on the touch screen of the audio / navigation head unit.
• 10168573Nov 15, 2019Equipment, Electrical system. 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.
• 10168569Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns involving Bluetooth (BT) functionality. 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. While completing the questionnaire, follow the question flow based on…
• 10168563Nov 15, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns regarding USB functionality. 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. While completing the questionnaire, follow the question flow based on the customer…
• 10168562Nov 15, 2019Electrical system, Equipment. 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.
• 10168558Nov 13, 2019Brakes. In the intrest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a service program to replace brake hoses that may swell due to fluid which can squeeze in between the hose's inner and outer layers. The condition presents itself as a noticeable swelling of the hose rubber near the fittings. However, the change in appearance does not affect the performance of the braking system.
• 10168625Nov 11, 2019Equipment, Engine cooling. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2017-2018 model year Impreza vehicles and certain 2018 model year Crosstrek vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10168606Nov 8, 2019Electrical system. On August 23rd, 2018, the first TomTom map update for Gen 3.0 Harman navigation equipped vehicles was made available. While the map update process is user-friendly, we ask that retailers assist customers with the map update procedure when requested as a courtesy, an opportunity to build retailer loyalty, enhance customer satisfaction and in keeping with the Love Promise.
• 10168592Nov 8, 2019Electrical system. 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.
• 10166956Oct 31, 2019Engine cooling. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2017-2018 model year Impreza vehicles and certain 2018 model year Crosstrek vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10166932Oct 30, 2019Electrical system, Engine cooling. Subaru of America, Inc. (Subaru) is recalling certain 2017-2019 model year Impreza and 2018-2019 Crosstrek vehicles due to improper Engine Control Module (ECM) programming. A total of 466,205 U.S. vehicles will be affected by this recall.
• 10166943Oct 24, 2019Engine cooling. Subaru f America, Inc. (Subaru) is initiating a new safety recall for certain 2017-2018 model year Impreza vehicles and certain 2018 model year Crosstrek vehicles in which the Positive Crankcase Ventilation (PCV) valve may be defective.
• 10166939Oct 23, 2019Electrical system, Engine cooling. The remedy is now available for this recall. Please refer to the WUQ-02 Product campaign Bulletin on STIS.
• 10166916Oct 18, 2019Air bags. This Service Information Bulletin announces a design change made to the side curtain and knee airbag modules on the models listed above to optimize commonization with the Japanese production parts. The change involves the mixture ratio of Argon to Helium used in the inflator gas: • OLD gas ratio: 94% Argon, 6% Helium • NEW gas ratio: 96% Argon, 4% Helium. All other specifications of these modules are unchanged.
• 10166913Oct 18, 2019Electrical system. This Service Information Bulletin provides the answer to potential inquiries regarding the STARLINK app being unable to play music files stored on a customer’s Android® phone / device through the head units (H/U) used in the applicable models listed above. This information is applicable ONLY to Android devices operating with Operating System (OS) version 10. IOS (AppleTM) devices are not affected.
• 10166902Oct 11, 2019Transmission and drivetrain. This Service Information Bulletin outlines design changes made to the coolant hoses for the CVT fluid cooler and the spring-type clamps used to secure them.
• 10166883Oct 1, 2019Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the 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…
• 10165552Sep 30, 2019Wheels, Brakes. This bulletin announces a design change made to the rear wheel / brake backing plates. Under certain circumstances, some customers may have a concern regarding a howling-type sound from the rear of the vehicle later diagnosed as a faulty hub / bearing assembly. Unevenness of the backing plate surfaces may affect the concentricity (roundness) of the hub / bearing after torqued during assembly and over time, cause…
• 10165497Sep 26, 2019Transmission and drivetrain. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly. Investigation has identified likely sources of the seepage to be the sealant used on the CVT’s oil pump chain cover and the input shaft oil seal. The repair involves chain cover removal, a thorough cleaning and inspection of the sealing surfaces followed by re-sealing the…
• 10165501Sep 11, 2019Equipment, Electrical system. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing the following customer concerns: 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…
• 10165496Sep 3, 2019Electrical system. This bulletin provides a new reprogramming procedure (FOTA) to optimize the Harman Gen 3 Audio and Navigation head units (H/U) utilized in the models as listed above. Firmware-over-the-air (FOTA) is a process by which remote devices can receive updates to their operating software. This process has become second nature with smartphones, tablets and many other connected devices. FOTA for automotive infotainments…

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