2021 Subaru Ascent maintenance schedule

Written in plain English and reviewed by the eli5cars editorial team · Last reviewed June 2026

2.4L FA24 turbocharged 4-cylinder boxer (260 hp) — Subaru high-torque Lineartronic CVT; Symmetrical AWD standard; 3-row, up to 8-passenger seatingBasePremiumLimitedMSRP $32,300

⚠ 2 open recalls for this vehicle

A recall means the manufacturer found a safety problem and is required to fix it — these aren't normal wear-and-tear repairs. Check your specific VIN at NHTSA.gov to confirm your car is affected.

✓ Recall repairs are always FREE at any dealer, no matter who currently owns the car or where it was bought.

ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

Subaru of America, Inc. (Subaru) is recalling certain 2019-2022 Ascent vehicles. The ground bolt that secures the ground terminal of the Positive Temperature Coefficient (PTC) heater may have been improperly fastened, which could result in melting of the ground terminal and surrounding components.

Why it matters: A melting ground terminal increases the risk of a fire.

The fix: Owners are advised to park their vehicle away from structures and to avoid leaving the vehicle unattended while the engine is running. An owner who notices or smells smoke coming from the dash or driver's footwell area should immediately stop operating the vehicle and turn the ignition switch to the "Off" position. Dealers will replace the PTC heater ground bolts and if necessary, replace the ground wire and the connector holder, free of charge. Owner notification letters are expected to be mailed February 6, 2023. Owners may contact Subaru's customer service at 1-844-373-6614. Subaru's number for this recall is WRL-22.

Reported 08/12/2022 · Campaign #22V907000 — look up your VIN at NHTSA.gov →

EQUIPMENT:OTHER:LABELS

Subaru of America, Inc. (Subaru) is recalling certain 2026 Crosstrek Hybrid, 2025-2026 Forester Hybrid, Forester, and 2019-2026 Ascent vehicles. These vehicles were manufactured with an incorrect Gross Axle Weight Rating (GAWR) on the certification label. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 110, "Tire selection and rims."

Why it matters: An incorrect GAWR label may lead to an overloaded vehicle, increasing the risk of a crash.

The fix: Subaru will mail a new certification label to owners, free of charge. Owners may also choose to have a dealer install the new label, free of charge. Letters informing owners of the safety risk are expected to be mailed August 25, 2026. Additional letters will be mailed once the remedy is available. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRH-26.

Reported 07/07/2026 · Campaign #26V436000 — look up your VIN at NHTSA.gov →

Jump to a mileage milestone:

30k miles 60k miles 90k miles 120k miles

Full service timeline

Mileage	Service items	Details
6k mi	Engine oil and filter change — 0W-20 full synthetic (Subaru factory spec for the turbocharged FA24) — Subaru's normal schedule is 6,000 mi/6 months, whichever comes first; on-time changes are especially important on this turbo engine since heat-soaked, degraded oil accelerates turbo bearing wear Tire rotation Inspect brake pads, rotors, lines and hoses (Ascent's added weight and towing use increase brake wear versus non-turbo Subaru models) Inspect CVT fluid level — Subaru High Torque CVT Fluid (HP CVTF), a different spec than the standard Lineartronic fluid used in non-turbo Subaru models Inspect turbocharger boost hoses, intercooler, and connections for leaks or cracking Inspect coolant, brake fluid, and washer fluid levels Check tire pressure to door-placard spec
15k mi	Engine oil and filter change (0W-20 full synthetic) Tire rotation Inspect brake system front and rear Replace cabin air filter if dusty or restricted Inspect engine air filter — replace if needed Inspect CVT fluid (HP CVTF) condition and level Inspect turbocharger oil feed and return lines; inspect for oil seepage at turbo housing
30k mi	Engine oil and filter change (0W-20 full synthetic) Tire rotation Replace engine air filter Replace cabin air filter Inspect spark plugs — factory-spec iridium; turbocharged FA24 typically calls for earlier plug service than naturally-aspirated FB engines due to higher cylinder pressures — inspect at 30k, plan to replace by 60k CVT fluid (HP CVTF) change recommended under severe-duty conditions (towing, mountain driving, frequent stop-and-go); inspect-only under normal use Replace rear differential gear oil Inspect brake fluid — replace if moisture-contaminated Inspect coolant condition — Subaru Super Coolant (long-life) Inspect turbocharger wastegate actuator and boost control solenoid operation	View →
60k mi	Engine oil and filter change (0W-20 full synthetic) Tire rotation Replace spark plugs — iridium, turbo-spec (heat range and gap differ from naturally-aspirated FB-series engines — use Subaru/NGK part number specific to the FA24) Replace cabin air filter Replace engine air filter CVT fluid (HP CVTF) change — commonly recommended preventive service on turbo/towing-capable models even under nominally normal use Replace rear differential gear oil Replace brake fluid Inspect coolant — top off or replace if contaminated Inspect turbocharger for shaft play, oil consumption, and unusual noise (whine/whistle under boost) Inspect wheel bearings, ball joints, and suspension bushings	View →
90k mi	Engine oil and filter change (0W-20 full synthetic) Tire rotation Inspect spark plugs — condition and gap Inspect CVT fluid (HP CVTF) level and condition Replace brake fluid Inspect timing chain, tensioner, and guides — lifetime component under normal use, no timing belt on the FA24 Inspect accessory drive belt; replace if cracked or glazed Inspect turbocharger boost hoses and intercooler piping for cracking Full brake inspection front and rear	View →
120k mi	Engine oil and filter change (0W-20 full synthetic) Tire rotation Replace spark plugs — iridium, turbo-spec (second full replacement interval) Replace CVT fluid (HP CVTF) Replace rear differential gear oil Replace coolant — Subaru Super Coolant flush and refill Replace brake fluid Replace accessory drive belt Inspect turbocharger thoroughly: shaft play, oil lines, wastegate, boost leaks Full suspension and steering inspection Inspect wheel bearings front and rear	View →

Common symptoms for this vehicle

Check engine light on? Get a free code scan

If your check engine light is on, most auto-parts stores (AutoZone, O'Reilly, Advance) will read the code for FREE — no purchase required, just walk in. Bring the code back here and look it up at eli5cars.com/obd2 for the plain-English explanation.

Note: a scan only helps when there's an active fault code. For purely mechanical symptoms (noises, vibrations, leaks), a scan may show nothing — the suspects listed above are your starting point.