2015-2021 Subaru WRX maintenance schedule

The 2015–2021 Subaru WRX (FA20 2.0L turbo) is a compact performance sedan with a horizontally opposed (boxer) four-cylinder engine and all-wheel drive. Compared with non-turbo compact sedans, routine maintenance costs are higher; plan on roughly $250–$770 per year for typical ownership (routine oil, tires, occasional brake work, and periodic major services). Subaru publishes a fixed maintenance schedule in its Warranty and Maintenance Booklet, and the intervals below come from the 2015, 2018, 2019 and 2021 booklets.

Normal or Severe: Which Schedule the WRX Needs

Subaru's booklet gives a normal schedule plus shorter intervals for severe use on oil and fluid items. The biggest change between the normal and severe schedules is the oil interval, which drops from 6,000 miles / 6 months to 3,000 miles / 3 months. Subaru's examples of severe driving conditions include:

• Repeated short distance driving
• Driving in extremely cold weather
• Repeated trailer towing

Separately, the booklet halves the brake fluid interval to 15,000 miles / 15 months for cars used in high-humidity or mountainous areas.

Complete Maintenance Schedule

The table below lists factory scheduled services for the 2015–2021 Subaru WRX. Shop costs are 2026 national averages for an independent shop. DIY costs assume buying OEM or equivalent parts and basic supplies.

Oil Change: Type, Capacity, Interval, and Cost

The oil for the FA20 2.0L turbo in the WRX is 5W-30 synthetic: the owner's manual calls it the required oil for optimum engine performance and protection, and conventional oil may be used if synthetic oil is unavailable. The correct capacity is 5.4 quarts with a filter change.

Service intervals from Subaru's Warranty and Maintenance Booklet:

• Normal: 6,000 miles / 6 months
• Severe: 3,000 miles / 3 months

WRX Oil Change Cost Comparison

DIY notes: the WRX is accessible for home oil changes; the drain and filter locations are reachable with jack stands or ramps. Use a quality oil filter and a new drain plug gasket. Allow the engine to cool before draining to avoid burns.

Brake Service

WRX brake-pad life varies widely with driving style. Enthusiastic drivers should expect front pads to last 15,000–35,000 miles under heavy use; more conservative highway-driving owners will see 30,000–60,000 miles. Aggressive driving (track days, repeated hard stops) shortens pad and rotor life significantly.

Have the brakes checked at each tire rotation. Replace pads when friction material reaches roughly 2–3 mm remaining or if pulsation or vibration is felt during braking.

Rotor replacement signs: deep scoring, thickness below the minimum spec, or persistent pulsing under braking. Rotors on WRX models used for hard stopping or track work wear faster; consider upgraded rotors if you track the car regularly.

Tire Rotation and Tires

Subaru's schedule: rotate and inspect the tires every 6,000 miles / 6 months. Rotation extends tread life and keeps handling even. Tire sizes vary by trim and year; check the placard on the driver's door for your stock size.

Signs you need new tires: tread under 2/32" (legal minimum), uneven shoulder wear, vibration across a range of speeds, or repeated punctures. Performance tires on WRX-sized wheels cost more than economy touring tires.

• Typical cost per tire (performance/all-season): $150–$300 depending on size and model
• Mounting and balancing per tire: $15–$30

Big-box retailers commonly include free rotations for tires purchased from them. Skipping rotations can shorten tire life and worsen handling in wet or snowy conditions.

Fluids: Transmission and Coolant

Transmission

The WRX came with either a 6-speed manual or Subaru's Lineartronic CVT. Subaru's maintenance guidance:

• Inspect the transmission fluid every 30,000 miles (the 2021 booklet moves the CVT fluid inspection to 36,000, 66,000, 96,000 and 126,000 miles). Subaru schedules no transmission fluid replacement under normal use in any of the booklets.
• Severe use: manual-transmission gear oil every 15,000 mi / 15 months; CVT fluid replacement every 24,855 miles.

Service costs vary by transmission type:

• Manual gearbox gear-oil service (drain and fill): $80–$150 at an independent shop; DIY costs $30–$80 for fluid and gasket.
• CVT fluid service (dealer or specialty shop) can run $200–$450, depending on whether a partial or full service is performed and whether Subaru CVT fluid is used.

Avoid aftermarket flush machines on Subaru CVTs unless the shop follows Subaru-approved procedures.

Coolant

Coolant is the main long-interval item on the WRX schedule: first replacement at 137,500 miles / 11 years, then every 75,000 miles / 6 years thereafter.

Coolant service cost at an independent shop: $120–$220. DIY cost for fluid and supplies: $40–$80.

How to Stay on Schedule

1. Change the oil and filter every 6,000 miles / 6 months, or every 3,000 miles / 3 months if you make repeated short trips, drive in extreme cold or tow a trailer.
2. Rotate and inspect the tires at every oil change (every 6,000 miles / 6 months) and replace the cabin air filter every 12,000 miles / 12 months.
3. At 30,000 miles / 30 months, replace the engine air filter and the brake fluid (every 15,000 miles / 15 months in humid or mountainous areas) and have the transmission fluid inspected (2021 CVT models: first inspection at 36,000 miles).
4. Replace the spark plugs at 60,000 miles / 60 months and the coolant at 137,500 miles / 11 years, then every 75,000 miles / 6 years.

Known Issues and Recalls

NHTSA lists 5 recall campaigns and 248 owner complaints for 2015–2021 Subaru WRX model years (as of November 10, 2026). The WRX's reported issues and recalls are component-specific; dealer remedies for recalls are performed free of charge.

Most recent recalls

All 5 campaigns, newest first. Look up any vehicle by VIN with NHTSA's recall lookup.

• NHTSA Campaign 22V522000 (2022-07-21). Component: Exterior lighting: back up lights: switch

  • NHTSA summary: "The backup light switch may corrode and become inoperative, which can result in the backup lights not illuminating and the rearview camera image not displaying when the vehicle is in reverse."
  • Remedy: "Dealers will inspect and replace the backup light switch, as necessary, free of charge. Owner notification letters were mailed September 16, 2022."
  • Affected model years: 2015, 2016, 2017, 2018, 2019, 2020, 2021

• NHTSA Campaign 21V587000 (2021-07-29). Component: Fuel system, gasoline: delivery: fuel pump

  • NHTSA summary: "The low-pressure fuel pump inside the fuel tank may fail."
  • Remedy: "Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021."
  • Affected model years: 2018, 2019

• NHTSA Campaign 17V625000 (2017-10-06). Component: Electrical system: wiring

  • NHTSA summary: "Items in the trunk may cause the subwoofer wiring to contact the subwoofer metal frame, possibly resulting in an electrical short."
  • Remedy: "Subaru will notify owners, and dealers will inspect the subwoofer wire, install a wire retainer clip, and, as necessary, replace the subwoofer, free of charge. The recall began October 31, 2017."
  • Affected model years: 2015

• NHTSA Campaign 16V162000 (2016-03-21). Component: Engine and engine cooling: engine: gasoline: turbo/supercharger

  • NHTSA summary: "The turbocharger air intake duct may crack and possibly result in an engine stall."
  • Remedy: "Subaru will notify owners, and dealers will inspect the turbocharger air intake duct, and replace it as necessary, free of charge, depending on the lot number found on the duct. The recall began April 2016."
  • Affected model years: 2015, 2016

• NHTSA Campaign 15V366000 (2015-06-12). Component: Forward collision avoidance: crash imminent braking

  • NHTSA summary: "If the switch that activates the brake lights fails, the automatic pre-collision braking component of the driver assist system will not function."
  • Remedy: "Subaru will notify owners, and dealers will reprogram the driver assist system, free of charge. The recall began on July 20, 2015."
  • Affected model years: 2016

Owner-Reported Complaints

• Electrical system: 54 complaints (1 crash, 2 injuries)

  • Summary: Owners report battery charging and battery-drain issues (examples include overcharging, constant battery drain, and premature battery failure leading to no-start conditions).
  • Maintenance connection: Have charging-system output and parasitic draw tested during diagnostic visits to identify alternator faults, bad batteries, or aftermarket accessory wiring problems before battery failure.

• Power train: 50 complaints (0 crashes, 0 injuries)

  • Summary: Reports include driveline and transmission-related noises, loss of power, and other powertrain symptoms (samples reference loud ticking or sudden loss of power followed by tow to dealer).
  • Maintenance connection: Prompt inspection of drivetrain, axles, and transmission when unusual noises or loss of power appear can limit damage and repair scope.

• Engine: 46 complaints (1 crash, 0 injuries)

  • Summary: Complaints cite engine noises (clunking, ticking), misfires, and secondary-system faults; a share of reports reference excessive oil use, sensor faults, or failures of ancillary components.
  • Maintenance connection: Follow the oil and spark-plug intervals above and diagnose misfires or abnormal noises early to avoid escalation.

• Unknown or other: 20 complaints (0 crashes, 0 injuries)

  • Summary: A mix of reports including oil burning, sensor malfunctions, infotainment/interface problems, and other issues that did not fit primary categories.
  • Maintenance connection: Document symptoms, fault codes, and conditions when failures occur (photos, recordings, and VIN-specific service history) to aid dealership diagnosis.

• Steering: 19 complaints (9 crashes, 4 injuries)

  • Summary: Reports include steering column clunks during turns and occasional loss of steering assist in isolated incidents; sample reports describe clunks on sharp turns and rare incidents with injury.
  • Maintenance connection: Have steering and suspension components (tie rods, rack, column joints) checked during scheduled services if you hear clunks or notice changes in steering feel.

Annual Maintenance Cost

A typical year for a WRX driven 12,000–15,000 miles with a mix of commuting and spirited driving includes 2–4 oil changes (depending on how much of your driving counts as severe), tire rotations, one cabin filter, and periodic inspections. Estimated annual routine costs at an independent shop under a realistic mix of normal and severe use:

Add periodic items: a coolant replacement at long intervals, spark plugs at 60,000 miles ($150–$300), and transmission or CVT service when required ($80–$450). With occasional brake pad replacement or other wear items, a conservative annual ownership budget is $250–$770.

Frequently Asked Questions

What oil does a 2015–2021 Subaru WRX take?

The WRX with the FA20 2.0L turbo takes 5W-30 synthetic, which Subaru calls the required oil for optimum engine performance and protection; capacity is 5.4 quarts with a filter change. Conventional oil may be used only if synthetic oil is unavailable.

How often should I change the oil in a WRX?

Subaru's intervals are 6,000 miles / 6 months under normal driving and 3,000 miles / 3 months under severe driving. Subaru's examples of severe conditions include repeated short distance driving, extremely cold weather and repeated trailer towing.

How often should the brake fluid be changed?

Subaru schedules brake fluid replacement every 30,000 miles / 30 months. If you drive in high-humidity or mountainous areas, the booklet shortens that to 15,000 miles / 15 months, whichever comes first. On manual cars the same item covers clutch fluid.

How often should I change the spark plugs?

Subaru specifies 60,000 miles / 60 months for spark plug replacement on the FA20 in the WRX. If you track the car or experience misfires, inspect earlier. Replacement cost at a shop is typically $150–$300.

Do I need to do anything special for the CVT or manual transmission?

Under normal use Subaru schedules inspections only: every 30,000 miles, or from 36,000 miles for the CVT in the 2021 booklet. Under severe use, replace manual gear oil every 15,000 mi / 15 months and CVT fluid every 24,855 miles.

How long does the battery last on a WRX?

Expect 3–5 years depending on climate and use; this is a general figure, not a Subaru interval. Hot climates shorten life; plan replacement accordingly. Typical replacement cost with installation is $120–$220.

Track your WRX's maintenance schedule with Pinion — it loads Subaru's recommended intervals by VIN and sends reminders before each service is due.