When you're shopping for a used compact SUV, the Subaru Forester usually floats to the top of your list. The 2021 model sits squarely in the middle of its fifth generation, bringing standard all-wheel drive, boxy utility, and a reputation for outdoor readiness. Real-world data paints a clear picture: the 2021 Subaru Forester earns strong reliability scores, averaging around four out of five stars across major automotive evaluation platforms, though owner feedback reveals a few quirks you should know before handing over your cash.
Direct owner experiences highlight a vehicle that handles winter weather with total confidence, offers class-leading outward visibility, and provides a genuinely spacious cabin for its footprint. Yet, it isn't flawless. Performance enthusiasts often complain about sluggish acceleration from its naturally aspirated engine, and some drivers grumble about sensitive driver-assist tech. This guide cuts through the marketing noise to break down exactly how reliable the 2021 model is, what owners actually experience day-to-day, and whether it deserves a spot in your driveway.
Reliability Ratings: What the Data Shows
Official reliability metrics for the 2021 model year lean positive. Industry trackers give the vehicle an above-average score for overall mechanical dependability, specifically praising its powertrain durability compared to earlier iterations of the same generation.
- Mechanical Dependability: Major engine and transmission failures are rare. The 2.5-liter four-cylinder boxer engine paired with the Lineartronic CVT avoids the catastrophic head gasket failures of older Subaru generations.
- Safety Scores: The Insurance Institute for Highway Safety awarded the 2021 Forester its highest accolade, Top Safety Pick+, earning top marks in all crashworthiness evaluations.
- Electrical and Tech Complaints: Most minor owner grievances center on the Starlink infotainment touchscreen freezing occasionally or the EyeSight driver-assist suite being overly sensitive in heavy rain or low-sun conditions.
What Owners Love
Real-world reviews from people who commute, road-trip, and grocery-shop in this SUV every day reveal consistent themes of satisfaction.
Visibility is a massive win. The upright window pillars and large glass area give you an unobstructed view of your surroundings, making tight parking spots and lane changes stress-free. Cargo utility also earns high praise. The rear tailgate opens wide into a square-shaped holding area, and the low load floor makes packing bicycles, camping gear, or large boxes straightforward without awkward lifting.
Fuel economy is another bright spot. Real-world testing matches the EPA estimates closely, hovering around 26 mpg city and 33 mpg highway. That efficiency, combined with a standard symmetrical all-wheel-drive system that doesn't heavily penalize your fuel budget, makes it a practical daily driver for folks living in snowy climates.
Common Pain Points and Complaints
No car is perfect, and listening to the critical minority of owners helps you spot potential headaches before you buy.
- Sluggish Acceleration: The 182-horsepower engine lacks punch when you need to pass quickly on a two-lane highway. If you load the cabin down with five passengers and gear, the CVT transmission groans under heavy throttle.
- Wind and Cabin Noise: At highway speeds, boxy aerodynamics create noticeable wind noise around the side mirrors, and the engine can sound coarse when pushed hard.
- Battery Drain Issues: A subset of owners report premature factory battery failure, a known quirk linked to parasitic electrical draws if the vehicle sits unused for multiple days at a time.
Maintenance Realities and Ownership Costs
Owning a Subaru means sticking to a strict maintenance schedule. Because of the boxer engine layout and standard all-wheel drive, upkeep differs slightly from front-wheel-drive competitors.
Fluid changes for the front and rear differentials are required at regular intervals, and spark plug replacements require patience due to the tight clearance between the engine block and the vehicle frame. Routine maintenance costs hover near industry averages, running roughly parallel to competitors like the Toyota RAV4 and Honda CR-V. Budgeting for regular oil changes every 6,000 miles keeps the variable-valve timing and oil-fed components running cleanly.
Frequently Asked Questions
Does the 2021 Subaru Forester burn oil?
Excessive oil consumption plagued older Subaru models from the early 2010s, but the FB25 direct-injection engine in the 2021 model largely resolved this issue. Normal minor consumption between changes can still happen, so checking your dipstick monthly remains good practice.
Is the CVT transmission reliable in this model year?
Yes. Subaru refined its Lineartronic continuously variable transmission significantly by 2021. While it still feels rubbery under hard acceleration compared to a traditional geared automatic, mechanical failures are uncommon if fluid changes are performed on schedule.
How does it handle deep snow?
Extremely well. Combined with standard symmetrical all-wheel drive and decent ground clearance (8.7 inches), putting a set of dedicated winter tires on a 2021 Forester makes it nearly unstoppable in heavy snowstorms.
What is the best trim level to buy used?
The Premium trim offers the best balance of value, adding alloy wheels, a panoramic sunroof, power-adjustable driver's seat, and all-weather packages without inflating the used price tag unnecessarily.
