The Used 2021 Crosstrek: Good Car, Overpriced Market

Buy It, But Not at Any Price

The 2021 Subaru Crosstrek is a genuinely solid used car. It holds up well, it gets decent fuel economy, and AWD is standard on every trim, which is rare at this price point. But the used market has not done buyers any favors here. As of mid-2025, Kelley Blue Book puts a clean 2021 Crosstrek Premium with around 50,000 miles in the $22,000–$24,000 range. Edmunds shows similar numbers, sometimes higher in markets where small AWD crossovers are popular. That is a lot of money for a five-year-old car with a 152-horsepower engine and a CVT transmission. The value is there, but only if you buy at the right number.

Target $21,500 or less for a mid-mileage example in good condition. If a dealer is asking $25,000 for a base trim with 60,000 miles, walk. You are paying new-car money for a used car. The sweet spot is a Sport or Premium trim between 35,000 and 65,000 miles, priced under $23,000. Above that, you are subsidizing someone else's depreciation curve.

Which Trim to Buy, and One Year to Think Twice About

The 2021 Crosstrek came in four trims: Base, Premium, Sport, and Limited. Skip the Base. It lacks a few conveniences that matter for resale and daily use, including Apple CarPlay, heated seats, and a proper infotainment screen. The Premium is the value pick. The Sport adds a slightly more powerful 2.5-liter engine (182 hp vs. 152 hp) and a six-speed manual option, which is worth seeking out if you want to avoid CVT costs down the road. The Limited is fine but priced too high on the used market relative to what it adds.

The 2021 model year itself is generally clean. Subaru issued a few recalls on the broader Crosstrek lineup from this generation, including one related to the fuel pump and one involving the EyeSight driver assist system. Check the NHTSA recall database before you buy any specific VIN. Most recalls are dealer-fixed for free, but you want confirmation it was actually done, not just that the recall exists.

The only configuration to approach carefully is the base 2.0-liter CVT at high mileage. More on that below.

What Actually Breaks, and When

RepairPal rates the Subaru Crosstrek 4.0 out of 5.0 for reliability, ranking it second out of 26 compact SUVs. That is genuinely good. But good does not mean free.

The 2.0-liter engine in the base and Premium trims has a documented oil consumption issue. Some owners report burning a quart every 1,500 to 2,000 miles. Subaru has acknowledged this across several FB-series engines. It typically shows up between 30,000 and 60,000 miles. It does not always destroy the engine, but if the previous owner was not vigilant about checking the oil, it can. Check the dipstick before you buy.

The CVT (continuously variable transmission) in the 2.0-liter models can develop shudder or hesitation around 80,000 to 100,000 miles, especially if the transmission fluid was never changed. A CVT fluid service runs $150–$250. If it was skipped, the transmission repair bill can reach $3,500 to $5,500. Ask for service records. If they do not have them, assume the CVT fluid is original and price that into your offer.

Wheel bearings are a recurring complaint on this generation, typically appearing between 60,000 and 90,000 miles. One bearing replacement runs $300–$500 at an independent shop. Not catastrophic, but not free either.

The EyeSight camera system, which handles adaptive cruise and automatic braking, can require recalibration after a windshield replacement. A new windshield on a Crosstrek with EyeSight runs $800–$1,200 installed, compared to $250–$350 on a car without it. If the windshield is cracked, factor that in.

Head gaskets on this engine family have been a problem on older Subaru engines, but the 2021 FB20 and FB25 are generally not repeat offenders. It is not the issue it was on the EJ-series engines from the early 2000s. Still worth checking coolant for a milky or oily residue.

What You Will Actually Spend Each Year

These are real-world estimates, not manufacturer optimism.

Under 50,000 miles: Plan for about $500–$700 per year. You are mostly doing oil changes ($60–$80 each, every 6,000 miles), a cabin air filter, and maybe a brake fluid flush. Subaru recommends synthetic oil, so do not cheap out there. Total annual maintenance in this range is predictable and manageable.

50,000 to 100,000 miles: Budget $900–$1,400 per year. Spark plugs are due around 60,000 miles ($150–$250). The CVT fluid should be changed if it has not been ($150–$250). Wheel bearings may start making noise. Tires on the Crosstrek, which runs 225/55R17s on most trims, cost $600–$900 for a full set of decent all-seasons. You might not hit all of these in a single year, but over a three-year span in this mileage range, the costs average out.

Over 100,000 miles: Budget $1,500–$2,500 per year and accept that a bad year could cost more. CVT repairs, if needed, are the big variable. Timing chains on this engine are generally fine, but water pumps and accessory belts deserve attention. If the previous owner skipped maintenance, you are inheriting their negligence in the form of repair bills.

What to Check Before You Buy

This list is specific to the 2021 Crosstrek. Generic advice is elsewhere.

1. Pull the dipstick and check the oil level cold. If the car has 40,000+ miles and the oil is a quart low, the engine has a consumption problem. Walk unless the price reflects that.

2. Check for CVT fluid service records. If the car has 60,000 or more miles and there is no record of a CVT fluid change, the omission belongs in your negotiation.

3. Look at the windshield. Any crack means a $800–$1,200 replacement if the car has EyeSight. Factor it in or ask the seller to replace it before closing.

4. Test the EyeSight system on the lot. Drive at highway speed and confirm adaptive cruise holds a gap. Malfunctions show up as warning lights or erratic behavior. If it is off or throwing a fault code, calibration starts at $300.

5. Listen for wheel bearing noise above 40 mph. A low hum or growl that changes with lane changes points to a worn bearing. Confirm which side by noting whether the noise increases when you load the left or right wheel.

6. Check for coolant condition. Pull the overflow reservoir cap. Green or orange, clear coolant is fine. Brown or oily residue is a warning sign. It does not always mean head gasket, but it means something.

7. Run the VIN through the NHTSA database. Confirm all open recalls have been completed. The fuel pump recall in particular should be verified as done.

8. Check the underbody in rust-belt states. Subaru frames and subframes can corrode in high-salt areas. Look at the rear subframe and the area around the spare tire well. Surface rust is normal. Through-rust is not.

9. Test all-wheel drive engagement. On a loose or gravel surface, confirm the AWD feels even and does not shudder. A shudder in tight turns can indicate a rear differential issue, which is expensive.

Fuel Costs Over a Year

The EPA rates the 2021 Crosstrek with the 2.0-liter engine at 28 mpg city, 33 mpg highway, and 30 mpg combined. The Sport with the 2.5-liter drops slightly to 27 combined.

At 12,000 miles per year and $3.50 per gallon, the 2.0-liter costs about $1,400 in fuel. The 2.5-liter Sport runs closer to $1,556. Neither number is alarming. For a small AWD crossover, this is competitive fuel economy, and it is one of the better arguments for the Crosstrek over something like a Jeep Compass or a Ford Bronco Sport, which both drink more.

Two Alternatives Worth Considering

2021 Mazda CX-30: At a similar price point, the CX-30 offers better interior quality, a smoother automatic transmission, and a stronger reliability record, making it worth a serious look if AWD is not your top priority in dry climates.

2021 Toyota Corolla Cross: Slightly less cargo space but Toyota's reliability reputation and lower repair costs make it a legitimate alternative if you find a Crosstrek priced above $23,000 and want to know there is another option.

The Number Where This Car Makes Sense

The 2021 Subaru Crosstrek is worth buying at or under $22,000 for a Premium or Sport trim with fewer than 75,000 miles and documented oil changes. At that price and mileage, you get a reliable AWD crossover with manageable annual costs and enough life left to make the math work. Push past $24,000, or buy one with over 90,000 miles and no service records, and the value disappears. The car does not suddenly become unreliable, but you are paying too much relative to what you get, and the CVT wildcard gets more expensive the longer it has gone without attention. Buy smart or buy something else.