--- title: "2015 Subaru Outback Parts and Specs" description: "Everything for the 2015 Subaru Outback: oil type and capacity, battery group size, tire sizes, wiper blades, filters, service schedule, and common problems, verified, sourced, and in one place." url: "https://whichcarparts.com/cars/subaru/outback/2015" updated: "2026-08-21" --- # 2015 Subaru Outback parts and specs Everything you need to own and maintain this exact model year. Verified specifications, part numbers, and the problems that recur, in one place. BS (5th generation), 2015-2019, Mid-size wagon/crossover. ## Quick facts | Quick fact | Value | | --- | --- | | Engine oil | 0W-20, 5.1 qt (base engine) | | Battery | Group 35 | | Tire size | 225/65R17 (base trim) | | Wiper blades | 26" / 17" / 14" rear | | Key fob battery | CR1620 (2015-2016 flip-key remotes); CR2032 on later push-button-start Limited/Touring smart keys. Check which key your trim uses | | Fuel tank | 18.5 gal | ## Specifications for the 2015-2019 Outback ### Oil & filter Viscosity, capacity, filter part numbers, change interval [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/oil). ### Battery BCI group size, cold cranking amps, AGM or flooded [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/battery). ### Tires & wheels Factory sizes by trim, pressures, bolt pattern, lug torque [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/tires). ### Wiper blades Driver, passenger and rear blade lengths [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/wipers). ### Air & cabin filters Cabin and engine air filter part numbers, locations, intervals [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/filters). ### Bulbs Headlight, fog and marker bulb types [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/bulbs). ### Brakes Rotor diameters, pad references, service notes [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/brakes). ### Fluids Transmission fluid, coolant, brake fluid and capacities [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/fluids). ### Service schedule What's actually due at every mileage interval [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/service-schedule). ### Problems & reliability Documented failures, recalls, and which years to avoid [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/common-problems). ### Oil light reset Step-by-step maintenance light reset, no tools [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/oil-reset). ### Key fob battery Which coin cell the remote takes [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/key-fob-battery). ### Specs Towing, weight, fuel tank, fuel economy [Read more](https://whichcarparts.com/cars/subaru/outback/2015-2019/specs). These specifications are shared across every Outback of the BS (5th generation) generation. See the [2015-2019 Subaru Outback overview](https://whichcarparts.com/cars/subaru/outback/2015-2019) for the full picture, or the [Subaru Outback guide](https://whichcarparts.com/cars/subaru/outback) to compare every generation. ## What changed for the 2015 Subaru Outback | Years | What changed | | --- | --- | | 2015 | Full redesign: all-new FB25, 3.6R moves to CVT, EyeSight driver-assist available for the first time on Outback | ## Known problems with the 2015 Subaru Outback 4 of the 5 issues we track for the 2015-2019 generation are documented against the 2015 model year. ### CVT chain slip, shudder, or failure (major) Owners report intermittent shudder, hesitation, RPM flare without a matching speed increase, or outright CVT failure, most often traced to chain slip (Subaru TSB 16-95-15). It's frequent enough that Subaru extended CVT coverage on many 2015 model-year vehicles (and separately on 2019-2020 vehicles) to 10 years/100,000 miles under a customer support program, call Subaru with your VIN to check eligibility before paying out of pocket. TSB 16-95-15; Subaru CVT customer support program (10-yr/100k extension). Typical cost: Free if within the 10-yr/100k CVT warranty extension; $3,500-$5,500 for a CVT replacement otherwise. ### FB25 oil consumption (2015 model year, class action) (minor) The Yaegar v. Subaru of America oil-consumption settlement's coverage window (2011-2015 FB-engine vehicles) extends into the first year of this generation. 2015 Outbacks with the FB25 that burn oil faster than Subaru's acceptable threshold qualify for the same extended 8-year/100,000-mile warranty on oil-consumption repairs described in the BR generation's entry. Yaegar v. Subaru of America, Inc., No. 1:14-cv-04490 (D.N.J.). Typical cost: Covered under the settlement's extended warranty if still within 8 yr/100k mi. ### Starlink infotainment freezes and screen delamination (minor) The touchscreen freezes, reboots, loses Bluetooth pairing, or (on some units) develops a delaminated/bubbling screen. Software updates fix some cases; a delaminated screen needs head-unit replacement, which can run into the thousands out of warranty. Typical cost: $0 (software update) to $2,000+ (head unit replacement, delamination). ### Parasitic battery drain (class action settlement) (moderate) A defective electrical system can prevent one or more control modules from entering a low-power sleep state, slowly draining the 12V battery even when the car is off and sometimes leaving owners stranded. In re Subaru Battery Drain Products Liability Litigation settled with an extended warranty for qualifying battery failures on 2015-2020 Outback (and related Forester/Legacy/Ascent/WRX) models. In re Subaru Battery Drain Products Liability Litigation, No. 1:20-cv-03095-JHR-MJS (D.N.J.). Typical cost: Covered under the settlement's extended warranty for qualifying failures; $150-$300 for an out-of-warranty battery replacement (doesn't fix the root cause). 1 more issue is reported in other 2015-2019 years: Spontaneous windshield cracking (class action settlement) (2017-2019). Full detail, costs and sources on the [Subaru Outback problems and years to avoid](https://whichcarparts.com/cars/subaru/outback/common-problems) guide. ## Which engines were offered in the 2015 Outback? | Engine | Trims | Oil | Oil capacity | | --- | --- | --- | --- | | 2.5L 4-cylinder (FB25, revised, port-injected) | 2.5i, Premium, Limited, Touring | 0W-20 | 5.1 qt | | 3.6L H6 (EZ36, now paired to High Torque CVT) | 3.6R Limited, 3.6R Touring | 5W-30 | 6.9 qt | ## About the Subaru Outback The Subaru Outback is a jacked-up all-wheel-drive wagon that has outsold most traditional SUVs in its class for over a decade, and the 2010-2025 span covers three generations built on a shared formula: a flat ("boxer") engine, standard symmetrical AWD, and a CVT on nearly every trim. 6L EZ36 six (the six paired to a real 5-speed automatic, not a CVT) and is the generation most associated with early-CVT anxiety, a steering-column recall, and FB25 oil-consumption complaints that ended in a class-action settlement. 6R onto Subaru's High Torque CVT, and is remembered for CVT chain-slip complaints (Subaru quietly extended CVT coverage to 10 years/100,000 miles on many of these), touchscreen/infotainment flakiness, and a spontaneous-windshield-cracking lawsuit. The BT (2019-2025 production, 2020-2025 model years) rides on the Subaru Global Platform, dropped the six-cylinder in favor of a direct-injected FB25D four and, starting with the 2022 Wilderness trim, an optional 260-hp turbocharged FA24F four, plus EyeSight driver assist standard across the range; it has its own recall history (a brake-pedal bolt recall right out of the gate, a passenger airbag-sensor recall, more windshield-cracking claims) and an ongoing parasitic-battery-drain lawsuit. Across all three generations maintenance is Subaru-typical: 6,000-mile/6-month full-synthetic oil changes (3,000/3 in severe service), a class-leading 11-year/137,500-mile first coolant interval, a Group 35 battery, and 89 ft-lb lug torque. The CVT is the component owners worry about most. Factory fluid-change guidance is generous (many owners change it well before Subaru's official interval), and a failed unit is the single most expensive repair on any of these three generations. For how the specifications changed across every generation, see the [full Subaru Outback guide](https://whichcarparts.com/cars/subaru/outback). ## Other Subaru Outback years - [2025](https://whichcarparts.com/cars/subaru/outback/2025) - [2024](https://whichcarparts.com/cars/subaru/outback/2024) - [2023](https://whichcarparts.com/cars/subaru/outback/2023) - [2022](https://whichcarparts.com/cars/subaru/outback/2022) - [2021](https://whichcarparts.com/cars/subaru/outback/2021) - [2020](https://whichcarparts.com/cars/subaru/outback/2020) - [2019](https://whichcarparts.com/cars/subaru/outback/2019) - [2018](https://whichcarparts.com/cars/subaru/outback/2018) - [2017](https://whichcarparts.com/cars/subaru/outback/2017) - [2016](https://whichcarparts.com/cars/subaru/outback/2016) - [2014](https://whichcarparts.com/cars/subaru/outback/2014) - [2013](https://whichcarparts.com/cars/subaru/outback/2013) - [2012](https://whichcarparts.com/cars/subaru/outback/2012) - [2011](https://whichcarparts.com/cars/subaru/outback/2011) - [2010](https://whichcarparts.com/cars/subaru/outback/2010) Data confidence for this generation: High confidence. ## Sources - [sportsubarusouth.com, Subaru Outback oil type by model year](https://www.sportsubarusouth.com/subaru-research/subaru-outback-oil-type/) - [AMSOIL lookup, 2019 Outback 2.5L FB25 oil spec/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2019/subaru/outback/2-5l-4-cyl-engine-code-fb25-4/1000/) - [awdadventure.com, Subaru Outback tire fitment by year (2015-2019)](https://awdadventure.com/pages/lifted-subaru-tire-size-charts) - [Rohnert Park Transmission, Subaru Outback CVT problems guide by model year](https://rohnertparktransmission.com/blog/subaru-outback-cvt-problems-guide) - [Subaru Battery Settlement, official settlement site (2015-2020 Outback coverage)](https://www.subarubatterysettlement.com/) - [Consumer Reports, 2015 Subaru Outback reliability (CVT complaint)](https://www.consumerreports.org/cars/subaru/outback/2015/reliability/) - [classaction.org, Subaru windshield settlement given preliminary approval (Khona/Powell case background)](https://www.classaction.org/news/subaru-windshield-settlement-given-preliminary-approval-reimbursements-extended-warranty-available) - [Reddit r/subaru, 2019-2020 CVT warranty extension to 10 yr/100k thread](https://www.reddit.com/r/subaru/comments/1ltsv9m/20192020_us_cvt_warranty_extension_to_10/) Specifications vary with engine option, production date, and market.