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Service bulletins for the 2018 Subaru Crosstrek

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.

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

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Bulletins, newest first
15-229-182018-10-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL. 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. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern.
15-228-182018-10-01. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; EQUIPMENT. 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, follow the question flow based on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern.
15-227-182018-10-01. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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 on the customer concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern. I
15-226-182018-10-01. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; 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 concern. Answer each related question noting the results to each in detail while performing the diagnostics. Review the entire bulletin before beginning in order to understand the flow for the listed concern
18-194-182018-10-01. Service bulletin. EQUIPMENT; 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. We advise you to always refer to the STIS web site when looking for the latest Service information
12-233-18R2018-10-01. Service bulletin. STRUCTURE; STRUCTURE:BODY; STRUCTURE:BODY:DOOR. This bulletin announces a design change to the front and rear door body flange weatherstrips in response to concerns regarding the doors being somewhat difficult to close fully. The new parts make closing the doors easier while maintaining a tight seal against air and water intrusion and reducing outside road noise levels in the cabin.
WTT-79R2018-10-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); 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.
15-224-182018-08-20. Service bulletin. EQUIPMENT. This bulletin announces new part number information for the antenna feeder cable and head liner. It also provides helpful installation tips for properly securing the cable to the head liner so post-repair rattling sound concerns are avoided.
15-211-17R2018-08-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 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.
12-247-182018-08-20. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Impreza 5-door models only. This Service Information bulletin serves as a reminder to always make sure the rear cargo cover (a.k.a. Tonneau Cover) is re-installed properly after removal. Although the cover fits and operates if not installed properly, wrinkling and / or damage to the cover material can occur.
07-137-182018-08-20. Service bulletin. STEERING. Models with Automatic Headlight Beam Leveler System only. This Service Information bulletin announces a revision to the diagnostic procedure used when diagnosing either DTC B2910 or 2911 ?Steering Responsive Headlight Communication? LH or RH.
05-62-182018-08-20. Service bulletin. STRUCTURE; SUSPENSION. This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top center retaining nut area of the front strut mounts. The strut mount cap / seal shape has been changed (outside diameter increased by 30mm) and reinforced to provide improved sealing against water intrusion. NOTE: Any rust accumulation as described here is cosmetic and will not impair functionality of the strut top.
02-175-182018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin announces a design change to the PCV valve used on the models listed above. Customers may have concerns of white smoke from the exhaust and / or in some cases, excessive engine oil consumption.
Harman-update-in2018-08-20. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. In efforts to increase customer satisfaction, Subaru of America, Inc. is now allowing all retailers to perform a one-time update the head unit software for Harman Gen 3 Audio and Navigation Head Units.
16-112-18R2018-07-16. Service bulletin. ELECTRICAL SYSTEM. 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.
15-211-17R2018-07-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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 before proceeding.
12-245-182018-07-16. Service bulletin. STRUCTURE:BODY:DOOR. 5 DOOR MODELS ONLY. This Service Information bulletin announces a design change to the rear gate trim panels. The change was made to the areas of the panels where they fit together to improve production line efficiency.
12-244-182018-07-16. Service bulletin. WHEELS. This bulletin outlines changes made to the rear quarter panel wheel arch garnish to eliminate gapping between the inner edge of the trim and the vehicle body.
07-131-18R2018-07-16. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed to set and result in the related system?s (e. g. VDC and/or EyeSight) warning lamp to illuminate.
02-176-182018-07-16. Service bulletin. ENGINE AND ENGINE COOLING. This Service Information bulletin announces a design change to the upper oil pan baffle plate used on the models listed above. The new plate has a relief to allow for use of an oil level sensor which will be used in future production.
15-214-17R2018-06-18. Service bulletin. EQUIPMENT. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
12-242-182018-06-18. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. This bulletin announces a design change made to the outside mirrors to address a very limited number of customer concerns regarding a rattling-type sound which may be heard when shutting the front doors. The change involves the addition of four pieces of EPT foam tape to the mirror?s internal components which provides additional stabilization and eliminates the sound.
02-175-182018-06-18. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin announces a design change to the PCV valve used on the models listed above. Customers may have concerns of white smoke from the exhaust and / or in some cases, excessive engine oil consumption.
15-217-182018-06-11. Service bulletin. 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.
15-211-17R2018-06-11. Service bulletin. 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.

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