According to Au7o's analysis of 3,880+ owner reports, the 2019 Subaru Forester has 18 documented known issues, with 6 rated critical. The most serious are CVT Transmission Shudder and Premature Failure ($0-$8,000 repair), EyeSight False / Phantom Automatic Emergency Braking, Starlink DCM Parasitic Battery Drain After 3G Network Shutdown, PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08), Electric Power Steering Control-Unit Connector Short — Sudden Loss of Steering Assist (Recall WUC-88 / NHTSA 19V065) ($0-$0 repair) and Denso Low-Pressure In-Tank Fuel Pump Failure Causing Sudden Stalling ($0-$1,300 repair). The most commonly reported issue is CVT Transmission Shudder and Premature Failure with 1,800 owner reports. Across all issues with published estimates, repair costs range from $60 to $8,000. DIY maintenance guides at au7o.io.
Subaru of America, Inc. (Subaru) is recalling certain 2025 Forester vehicles equipped with 18" aluminum alloy wheels. The wheels may have been manufactured with an incorrectly specified lug seat surface, which can result in the wheel being improperly attached and cause a loss of vehicle stability.
Campaign #25V03300023/01/2025
CHILD SEAT
Subaru of America, Inc. (Subaru) is recalling certain 2025 Forester vehicles. The child seat anchor bolts may have been improperly tightened, allowing the bolts to come loose.
Campaign #25V41900019/06/2025
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."
Campaign #26V43600007/07/2026
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What are the most common Subaru Forester problems?
According to Au7o's analysis of 3,880+ owner reports, the 2019 Subaru Forester has 18 documented issues. The most frequently reported are: CVT Transmission Shudder and Premature Failure, EyeSight False / Phantom Automatic Emergency Braking, Starlink DCM Parasitic Battery Drain After 3G Network Shutdown. Of these, 6 are rated critical and should be addressed promptly.
Is the Subaru Forester reliable?
The 2019 Subaru Forester has 18 known issues documented across 3,880+ owner reports. 6 issues are rated critical: CVT Transmission Shudder and Premature Failure and EyeSight False / Phantom Automatic Emergency Braking and Starlink DCM Parasitic Battery Drain After 3G Network Shutdown and PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08) and Electric Power Steering Control-Unit Connector Short — Sudden Loss of Steering Assist (Recall WUC-88 / NHTSA 19V065) and Denso Low-Pressure In-Tank Fuel Pump Failure Causing Sudden Stalling. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Subaru Forester problems?
Repair costs for known Subaru Forester issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, CVT Transmission Shudder and Premature Failure, typically costs $0-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2014-2021 Subaru Forester CVT Transmission Shudder and Premature Failure?
The Lineartronic CVT (TR690) in 2014-2021 Foresters can develop shuddering, hesitation, and in severe cases, complete failure. Symptoms typically begin around 60,000-100,000 miles. The CVT chain can stretch, causing slippage and shudder during light acceleration. The torque conve… Repairs typically run $0-$8,000. Severity: high.
What is the 2019-2021 Subaru Forester EyeSight False / Phantom Automatic Emergency Braking?
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
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On the 2019 Subaru Forester, on 2019 Foresters with the FB25 boxer engine, the aluminum PCV valve can separate during heating/cooling cycles, allowing valve fragments to enter the engine and cause a sudden loss of power while driving. Subaru recalled roughly 51,613 2019 Crosstrek/Forester/Ascent vehicles under NHTSA 19V-856 / Subaru WUW-08, with 33,383 of those being Foresters.
Common Symptoms
Sudden loss of engine power while driving
Rough running or misfire
Rattling or debris noise from the engine
Check engine light
Engine stalling
How to Fix
Covered under safety recall WUW-08 / NHTSA 19V-856 (recall began Jan 31, 2020). Dealers inspect and replace the PCV valve free of charge; if the valve has separated and the fragments cannot be located, Subaru replaces the short block engine at no cost. Verify your VIN at nhtsa.gov/recalls or call 1-844-373-6614.
On the 2009-2022 Subaru Forester, coil-on-plug ignition coils on the Forester are a common failure point. As the coil's internal epoxy/resin cracks with heat and age, the coil produces erratic or insufficient spark, causing single-cylinder misfires, rough idle, hesitation on acceleration, reduced fuel economy and a flashing/steady check-engine light. A frequently reported pattern is hard starting or stumbling when cold (below roughly 10°F) that improves once the engine warms. Note that a leaking spark plug tube seal (oil in the plug well) can prematurely kill a coil, so the two issues often appear together.
Common Symptoms
Rough idle and vibration at idle
Engine hesitation or stumble on acceleration
Flashing or steady check engine light
Hard starting or misfire when cold
Reduced fuel economy
How to Fix
Pull codes — P0301-P0304 indicate the misfiring cylinder; P0351-P0354 indicate coil circuit faults. Confirm by swapping the suspect coil to an adjacent cylinder; if the misfire follows the coil, replace it (coils cannot be repaired). Inspect the plug well for oil and replace the spark plug tube seal if oil is present so the new coil isn't ruined. Replace the spark plugs at the same time. Forester ignition coil part numbers vary by year/engine (for example 22433AA691 on 2013-2018 2.5L and 22433AA590 on non-turbo 2009-2010); confirm the exact PN by VIN.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 22433AA590 Ignition Coil
single-cylinder replacement after the coil is proven failed Fitment/availability: 2009-2010 Forester 2.5L naturally aspirated X/X Limited/XS branch only; not XT, confirm VIN Fitment/availability: Add to Cart live when reviewed
single-cylinder replacement after the coil is proven failed Fitment/availability: 2011-2013 Forester 2.5L naturally aspirated X/X Limited/X Premium branch; not XT, confirm VIN Fitment/availability: ships in 1-2 business days with Add to …
single-cylinder replacement after the coil is proven failed Fitment/availability: 2014-2016 Forester 2.5i naturally aspirated branch; current replacement for 22433AA681/AA680, confirm VIN Fitment/availability: ships in 1-2 business days …
single-cylinder replacement after the coil is proven failed Fitment/availability: 2017-2018 Forester 2.5i naturally aspirated branch in this issue; retailer also catalogs XT, confirm VIN Fitment/availability: Add to Cart live when reviewed
single-cylinder replacement after the coil is proven failed Fitment/availability: 2019-2021 Forester Base/Premium/Sport/Limited/Touring branch; confirm VIN and production split Fitment/availability: ships in 1-3 business days with Add to…
On the 2019-2025 Subaru Forester FB25 2.5L Direct Injection, for 2019 the SK Forester switched the FB25 from port injection to direct injection. With no fuel washing over the back of the intake valves, oil vapor from the PCV system bakes onto the valves and ports as hard carbon. Deposits restrict airflow and disturb valve sealing, and once buildup gets severe owners report a rough idle, stumbling, and misfire codes — often only on cold start at first. This is not the FB25 excessive-oil-consumption story from the port-injected 2011-2018 engines; it is a deposit problem specific to the direct-injected FB25 in the 2019+ car, and it appears alongside the higher oil-dilution readings typical of DI boxers driven on short trips. It is a known trait of all GDI engines, not a Subaru-unique defect, but it does have a real service interval attached to it.
Common Symptoms
Rough or unstable idle
Cold-start stumble
Misfire codes
Hesitation under light throttle
Gradual loss of power and fuel economy
How to Fix
There is no recall or warranty program. Preventive: run an induction/intake cleaning service (BG or equivalent) periodically — shops commonly recommend around every 30,000 miles at roughly $130-$160 — and avoid a diet of short cold trips, which maximizes both deposits and oil dilution. Corrective: when misfires and rough idle appear, the fix is mechanical cleaning of the intake valves — walnut blasting with the intake manifold removed — typically recommended around 100,000-120,000 miles. Chemical top-engine cleaners help only mild deposits. Replace fouled plugs and inspect the PCV valve at the same time.
On the 2011-2024 Subaru Forester FB25, the boxer engine's two valve covers face outward and sit low on each side, exposing the cork/rubber valve cover gaskets and the spark plug tube seals to heat cycling and the path of any leaking oil. As these seals harden and shrink, oil seeps out and visibly drips onto the exhaust (burning-oil smell from under the hood) and — more importantly — pools down inside the spark plug tubes. Oil in the plug tubes saturates the plugs, boots and ignition coils, leading to engine misfires, rough idle and a check-engine light. Owners report this on both early FB25s and surprisingly low-mileage newer cars (cases as early as ~17k-50k miles documented on the owners' forum). The valve cover's external location makes the leak a frequent dealer/independent repair.
Common Symptoms
Burning oil smell from engine bay
Oil dripping/residue along the lower side of the engine
Rough idle and engine misfire
Check engine light with cylinder misfire codes
Oil pooled in spark plug wells when coils are removed
How to Fix
Remove the affected valve cover and replace BOTH the valve cover gasket AND the spark plug tube seals at the same time (replacing only the cover gasket and leaving old tube seals lets oil keep reaching the plugs). Inspect and replace any oil-soaked spark plugs and ignition coils. The FB25 valve cover gasket is OEM 13294AA050 (supersedes/cross to 13294AA053); the gasket set that includes the spark plug tube/washer seal is 13293AA051. Clean oil residue off the block and re-torque the cover to spec.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 13272AA170 Left Valve-Cover Gasket
left cover perimeter gasket when that side is confirmed leaking Fitment/availability: 2011-2018 Forester FB25 left/driver-side branch; confirm VIN and engine Fitment/availability: Add to Cart live when reviewed
Genuine Subaru 13270AA240 Right Valve-Cover Gasket
right cover perimeter gasket when that side is confirmed leaking Fitment/availability: 2011-2018 Forester 2.5-liter naturally aspirated FB25 right/passenger-side branch; confirm VIN Fitment/availability: ships in 1-3 business days with A…
left cover perimeter gasket when that side is confirmed leaking Fitment/availability: Retailer explicitly lists 2019-2025 Forester; use here for the 2019-2024 FB25D left-side branch and confirm VIN Fitment/availability: two left with Add…
Genuine Subaru 13270AA300 Right Valve-Cover Gasket
right cover perimeter gasket when that side is confirmed leaking Fitment/availability: Retailer explicitly lists 2019-2025 Forester; use here for the 2019-2024 FB25D right-side branch and confirm VIN Fitment/availability: two left with A…
On the 2019-2020 Subaru Forester, the Data Communications Module (DCM) that powers Starlink keeps trying to reach the defunct cellular 3G network and fails to sleep, drawing excess current with the car off and killing the battery, causing repeated dead-battery no-starts even after a new battery is installed. A class action covering 2015-2020 Foresters (among other models) settled over this premature battery drain.
Common Symptoms
Repeated dead battery / no-start even after replacing the battery
Battery drains within a few days of sitting
Elevated parasitic draw measured with the car off
Starlink connectivity errors
Battery warning on dash
How to Fix
Covered by the Subaru battery-drain class settlement (2015-2020 Forester): extended battery warranty plus cash reimbursement of 55%-165% of prior out-of-pocket battery/repair costs depending on number of repairs, age, and mileage (claim deadline has passed). Dealers can reflash or service the DCM/charging logic; pulling the DCM fuse is a temporary fix that disables Starlink features.
On the 2019-2023 Subaru Forester, the Harman-built Starlink head unit on 5th-gen Foresters freezes on startup, reboots in a loop every few seconds, or goes to a black/blank screen, often after a software update. Subaru issued TSB 15-228-18R covering 2019-2020 Forester (among other models) for display freeze-up or black-screen concerns; owners also report the backup camera failing to display in reverse when the unit is locked up.
Common Symptoms
Touchscreen frozen on startup, buttons unresponsive
Infotainment reboots in a loop every few seconds
Black or blank screen
Backup camera does not display in reverse
CarPlay / Android Auto connection drops
How to Fix
A hard reset clears most lockups: press and hold the audio power knob about 10 seconds (2019-2023 models). Disconnecting the battery for 10-15 minutes forces a full reboot. Persistent cases need the latest firmware patch or head-unit replacement at a dealer per TSB 15-228-18R.
On the 2014-2021 Subaru Forester, the Lineartronic CVT (TR690) in 2014-2021 Foresters can develop shuddering, hesitation, and in severe cases, complete failure. Symptoms typically begin around 60,000-100,000 miles. The CVT chain can stretch, causing slippage and shudder during light acceleration. The torque converter can also develop issues. Subaru extended CVT warranty to 10 years/100,000 miles under Customer Satisfaction Program WTY-72. Multiple software updates have been released to address shifting behavior.
Common Symptoms
Shuddering during light acceleration at 15-40 mph
Hesitation or delay when accelerating from a stop
CVT whining or droning noise
Rough engagement into Drive or Reverse
Transmission warning light on dashboard
How to Fix
Have the dealer check for and apply the latest CVT software updates (TSB 16-103-17R). Perform CVT fluid change with Subaru CVT Fluid Lineartronic II (SOA427V1700). If shuddering persists, torque converter replacement or complete CVT replacement may be needed. Verify coverage under Subaru's 10-year/100,000-mile CVT warranty extension.
High Confidence1,800 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2019-2021 Subaru Forester, forester owners report the EyeSight pre-collision braking system applying hard braking with no obstacle present, including on open highways and curves, plus erratic lane-keep-assist interventions, all attributed to the windshield-mounted stereo-camera assembly. A class action over the EyeSight system received final court approval in November 2025 covering certain 2014-2021 Foresters.
Common Symptoms
Automatic emergency braking activates with no obstacle present
Sudden hard braking on highways or curves
System falsely senses hillsides or overpasses as hazards
Erratic lane-keep steering corrections
EyeSight unavailable / shuts off warning
How to Fix
The EyeSight class settlement (2014-2021 Forester) extends the warranty to reimburse 75% of qualifying repair costs to the EyeSight camera assembly / rear sonar for up to 4 years or 48,000 miles from in-service date. Dealers can recalibrate or replace the cameras and apply software updates; document each event and file an NHTSA complaint at nhtsa.gov.
On the 2019 Subaru Forester, subaru recalled 10,417 US 2019 Forester and Crosstrek vehicles because a connector inside the Electronic Power Steering (EPS) unit was molded with small gaps in the plastic, leaving inadequate isolation between adjacent terminals. Those terminals can short, which shuts down electric steering assist. The driver keeps mechanical steering but effort jumps dramatically and without warning — a serious hazard at parking speeds and in an emergency maneuver. This is a manufacturing defect in the EPS gearbox assembly on the launch-year SK Forester and is a completely separate problem from the salt-belt EPS gearbox corrosion/cracking issue Subaru addressed by TSB and warranty extension on other model years.
Common Symptoms
Sudden loss of power steering assist
Steering becomes very heavy while driving
EPS / power steering warning light on the dash
Intermittent assist that comes and goes
How to Fix
Free recall remedy: dealers inspect the power steering gearbox and replace it as necessary at no charge. The recall began 7 February 2019. Verify your VIN at nhtsa.gov/recalls or with a dealer — the remedy remains available on any unrepaired vehicle. Any 2019 Forester that has thrown an EPS warning or reported momentary heavy steering should be checked against this campaign before paying for diagnosis.
On the 2017-2020 Subaru Forester, foresters equipped with a Denso low-pressure fuel pump (part-number prefix 42022-) built before mid-2019 use a low-density plastic impeller that absorbs fuel, swells and deforms inside the pump housing. The deformed impeller binds against the housing and abruptly cuts fuel delivery, causing the engine to hesitate, run rough, fail to start, or stall without warning while driving — a crash risk. The defect is covered by NHTSA recall 21V-587 (one of several Subaru/Denso fuel-pump campaigns) and a class-action settlement that extended the pump warranty to 15 years/150,000 miles on replaced units.
Common Symptoms
Sudden engine stalling while driving
Long crank / no-start, especially when warm
Hesitation and surging under acceleration
Rough running and rough idle
Whining or no priming sound from the tank
How to Fix
Have the VIN checked for the open fuel-pump recall and get the complete in-tank fuel pump assembly (Denso, 42022- prefix) replaced free under the recall — the new assembly uses a higher-density impeller that resists swelling. Out of warranty, replace the entire module (pump, sender, filter sock) rather than just the impeller; budget for intermittent stalling diagnosis since the failure can be load/temperature dependent and may not store a code.
On the 2019-2025 Subaru Forester, 5th generation Foresters (2019+) have widespread reports of windshield cracks initiating near the EyeSight camera housing area or from the edges with no impact. The windshield design incorporates an acoustic interlayer and EyeSight camera calibration zone that creates stress concentrations. Temperature changes commonly trigger cracks. Replacement windshields must be EyeSight-compatible and require camera recalibration. Subaru has not issued a recall but dealerships have handled some replacements under goodwill.
Common Symptoms
Crack appearing near EyeSight camera housing without impact
Crack starting from windshield edge and spreading
EyeSight system disabled due to cracked windshield
Crack appearing after temperature changes
Multiple cracks developing in short period
How to Fix
Document the crack with photos immediately. Contact Subaru customer service (1-800-782-2783) to request goodwill coverage. Replacement requires Subaru-approved EyeSight-compatible windshield and dealer calibration of EyeSight cameras ($200-400 for calibration alone). Aftermarket windshields from Pilkington or Mopar are available but must be EyeSight-rated. Some owners have had success with Subaru covering costs under goodwill after persistent complaints.
High Confidence1,400 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2014-2022 Subaru Forester, forester moonroofs drain rainwater through small tubes routed down the A/B pillars to discharge under the car. The corner drains clog with pollen, dirt and tree debris, or a tube pops off its nipple at the sunroof gutter. Water then backs up and overflows into the headliner and cabin, soaking the carpet, fogging windows, and — because water pools near floor electronics — sometimes causing electrical gremlins. The leak is often misdiagnosed as a seal failure when it is really a blocked drain.
Common Symptoms
Water dripping from the headliner or A-pillar in rain
Wet front or rear floor carpet
Musty smell / interior fogging
Water heard sloshing in the roof or pillars
Intermittent electrical faults from wet floor connectors
How to Fix
Periodically clear the four sunroof drain tubes (low-pressure compressed air or a soft trimmer line) and confirm flow exits under the vehicle. Re-seat any tube that has detached from the gutter nipple. Dry out wet carpet/padding promptly to prevent mold and corrosion of under-seat electrical connectors. Replace the perimeter seal only if drains are confirmed clear and water still enters.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 65475SG000 Front Sunroof Drain Tube
replacement only for a damaged front tube that cannot be reseated or cleared Fitment/availability: 2014-2018 Forester with sunroof, front position, quantity two; confirm VIN Fitment/availability: ships in 1-3 business days with Add to Ca…
replacement only for a damaged matching rear tube Fitment/availability: 2014-2016 Forester with sunroof rear-position production branch; quantity two, verify VIN/build date Fitment/availability: ships in 1-3 business days with Add to Car…
replacement only for a damaged matching rear tube Fitment/availability: 2017-2018 Forester with sunroof rear position, plus a late-2016 build branch; quantity two, confirm VIN/build date Fitment/availability: catalog Add to Cart live whe…
Genuine Subaru 65475SJ000 Front Sunroof Drain Tube
replacement only for a damaged front tube that cannot be reseated or cleared Fitment/availability: 2019-2022 Forester with sunroof front position; quantity two, confirm VIN Fitment/availability: ships in 1-3 business days with product pu…
replacement only for a damaged rear tube that cannot be reseated or cleared Fitment/availability: 2019-2022 Forester with sunroof rear position; quantity two, confirm VIN Fitment/availability: ships in 1-3 business days with Add to Cart …
On the 2019 Subaru Forester, subaru recalled 2019 Forester (with 2018-2019 Crosstrek and 2019 Crosstrek Hybrid) — over 400,000 US vehicles — because initial variation in rear stabilizer bracket dimensions allowed the rear stabilizer bar bracket bolts to loosen in service and detach. With bolts missing the bracket can shift, changing rear roll stiffness and handling unpredictably, which is why NHTSA classified it as a crash risk rather than a noise complaint. Owners typically notice it first as a rear-end rattle or clunk over bumps, or find loose/absent bolts during an unrelated service. It affects the SK-generation Forester's launch model year only.
Common Symptoms
Rattle or clunk from the rear over bumps
Loose or missing rear stabilizer bracket bolts
Vague or inconsistent rear-end handling
Metallic knock on uneven pavement
How to Fix
Free recall remedy: dealers re-torque the rear stabilizer bracket bolts to the corrected specification and replace any bolts that are loose or missing, at no charge. Recall notification began in 2021. Check your VIN at nhtsa.gov/recalls; if the vehicle was never brought in, the remedy remains available. Any 2019 Forester with an unexplained rear clunk should have those bracket bolts checked before chasing bushings, links or shocks.
On the 2014-2022 Subaru Forester, foresters routinely wear the inner edges of the rear tires bald at low mileage (often 20,000-30,000 miles). The rear suspension allows toe adjustment but not camber, and the factory frequently leaves the rear toe set too aggressively, scrubbing the inner shoulders. Because owners can't see the inner edge, the wear is often discovered only when tires are flipped or replaced, leading to premature, uneven tire replacement.
Common Symptoms
Rear tires worn bald on the inner edge
Uneven rear tire wear at low mileage
Tire noise/feathering on the inside shoulder
Shortened tire life despite rotations
Cupping on rear inner tread
How to Fix
Get a four-wheel alignment with the rear toe set to the low end of spec (near zero) rather than the factory default, ideally early in ownership. Inspect inner rear tire edges at every rotation. Where toe is out of range and not adjustable enough, aftermarket rear toe/camber adjustment hardware can bring it into spec. Maintain correct tire pressures, since under-inflation accelerates the wear.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
SPC 67660 Rear Adjustable Lower Control Arm
camber and extended toe-range correction only after measured alignment cannot be brought into specification with factory adjustment Fitment/availability: SPC lists 2009-2025 Subaru Forester; one per wheel, confirm exact correction need a…
toe-only correction alternative when the factory adjuster cannot achieve specification Fitment/availability: Retailer-verified 2014-2018 Forester branch in this issue; not approved here for 2019-2022 Fitment/availability: 25 in stock wit…
On the 2014-2020 Subaru Forester FB25, foresters with the 2.5L FB25 engine experience premature A/C compressor failures, often with a noisy clutch or complete seizure. The compressor clutch bearing fails first, creating a grinding or squealing noise when the A/C is engaged. If not addressed, the compressor can seize and send metal debris through the entire A/C system, requiring replacement of the condenser, receiver/drier, and expansion valve in addition to the compressor. The issue is common between 60,000-120,000 miles.
Common Symptoms
Grinding or squealing noise when A/C is turned on
A/C blowing warm air intermittently
A/C clutch clicking on and off rapidly
Complete loss of cold air from vents
Burning rubber smell from engine bay when A/C is on
How to Fix
Replace A/C compressor assembly (Denso 471-6050 or Subaru OEM 73111SG010). If compressor seized and sent debris, flush the entire system and replace condenser, receiver/drier (Subaru 73520FJ001), and expansion valve. Use PAG 46 oil and charge with R-134a to factory spec (15.5 oz). A/C clutch relay and pressure switch should be tested before assuming compressor failure.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 73111FJ042 A/C Compressor Assembly
complete compressor assembly after electrical, clutch, pressure and leak diagnosis confirms replacement Fitment/availability: 2014-2018 Forester 2.5L naturally aspirated branch in this issue; retailer also catalogs other applications, so…
condenser/integrated-drier branch only when a seized compressor contaminated the system or the condenser itself is diagnosed failed Fitment/availability: 2014-2016 Forester 2.5L or 2.0XT only; confirm VIN and current A/C system configura…
High Confidence680 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
On the 2009-2019 Subaru Forester, the front CV (constant-velocity) axle boots on Foresters crack and tear with age and from suspension flex and road debris. Once the boot splits, grease slings out and dirt/water get in, so the now-dry CV joint wears and produces a clicking or popping that is loudest during tight, low-speed turns. Left unrepaired the joint fails completely, risking loss of drive to that wheel. Owners frequently spot a ring of slung grease on the inner fender or underbody before any noise.
Common Symptoms
Clicking or popping during tight low-speed turns
Grease flung onto the inner fender/underbody
Torn or cracked rubber CV boot
Rhythmic grinding under acceleration when turning
Vibration that worsens with speed (failing joint)
How to Fix
Inspect the inner and outer CV boots at every service for cracks or grease slinging. A freshly torn boot caught early can be re-booted and repacked, but a joint that already clicks needs the CV joint or, more commonly, a complete remanufactured/new front axle assembly (sold per side). Use quality OEM-grade axles; cheap aftermarket axles are a known repeat-failure complaint.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 28321SC033 Front Drive Shaft Assembly
complete axle after a naturally aspirated-branch joint is confirmed worn or clicking Fitment/availability: 2009-2013 Forester X/X Premium/X Limited/XS naturally aspirated branch, per side; confirm VIN and production supersession Fitment/…
Genuine Subaru 28321SC003 Front Drive Shaft Assembly
complete axle after a turbo-branch joint is confirmed worn or clicking Fitment/availability: 2009-2013 Forester XT turbo branch, per side; confirm VIN and production supersession Fitment/availability: ships in 1-3 business days with Add …
complete axle after a matching CVT-branch joint is confirmed worn or clicking Fitment/availability: 2014-2018 Forester CVT/automatic branch, left or right; verify VIN, transmission and early-2014 production split Fitment/availability: sh…
early repair only for the matching clean, unworn joint before clicking or contamination damage Fitment/availability: Retailer-cataloged 2014-2018 Forester branch; confirm VIN, transmission, joint position and kit contents Fitment/availab…
On the 2011-2021 Subaru Forester FB25, foresters commonly throw a P0420 'Catalyst System Efficiency Below Threshold (Bank 1)' code and an illuminated check-engine light. While the converter itself is the part that degrades, the underlying root cause on FB25 Foresters is frequently the well-documented excessive-oil-consumption defect: burnt oil and unburned fuel coat and contaminate the catalyst, reducing its efficiency until it can no longer pass the downstream O2 sensor's efficiency check. Coolant intrusion and exhaust leaks can produce the same result. Subaru issued a service program (WVI-19/WVI-19R) extending the catalytic converter coverage to 10 years/100,000 miles on certain affected vehicles, and the related Yaeger oil-consumption settlement (2011-2014 models) extended engine warranty to 8 years/100,000 miles.
Common Symptoms
Check engine light with P0420 stored
Failed emissions/smog test
Rotten-egg/sulfur smell from exhaust
Reduced fuel economy
Often paired with excessive oil consumption
How to Fix
Before condemning the converter, rule out cheaper causes: a lazy/failed rear O2 sensor and exhaust leaks can both mimic P0420. Verify the engine is not consuming oil at an excessive rate (a contaminated cat will quickly re-fail if oil consumption is unaddressed). Check VIN eligibility against Subaru service program WVI-19 (10yr/100k extended cat warranty) and the Yaeger oil-consumption settlement before paying out of pocket. If the catalyst is genuinely degraded, replace with a CARB-compliant OEM or direct-fit converter and a new rear O2 sensor.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 22690AA960 Rear Oxygen Sensor
replacement only after testing confirms the downstream sensor failed or the exact catalyst procedure requires it Fitment/availability: Rear/downstream sensor for retailer-cataloged 2011-2018 Forester 2.5L applications only; confirm VIN a…
replacement only after testing confirms the sensor failed or the exact catalyst procedure requires it Fitment/availability: Rear/downstream sensor for retailer- and Subaru-bulletin-cataloged 2019-2021 Forester 2.5L branch; confirm VIN an…
On the 2009-2021 Subaru Forester, foresters are prone to early front brake rotor distortion (thickness variation) that produces a pronounced pulsation/judder felt through the steering wheel and brake pedal when braking, often appearing at relatively low mileage. Owners across multiple generations report warped/judder-prone front rotors, and machining or same-part replacement frequently doesn't last. Subaru has acknowledged brake judder across its lineup with a revised front brake pad material via TSB (e.g. 06-91-24R on related Legacy/Outback/Ascent platforms). A caliper piston or seized slide pin not fully retracting (dragging pad) accelerates the heat cycling that distorts the rotor.
Common Symptoms
Steering wheel and pedal vibration/shudder when braking, especially above 40 mph
Pulsation that returns a few thousand miles after rotors are resurfaced or replaced
Uneven rotor thickness / visible scoring at inspection
Brake judder reappearing prematurely under normal driving
How to Fix
Replace front rotors and pads — ideally with updated-material brake hardware rather than resurfacing the original rotors. Inspect and service the front calipers and slide pins so a dragging piston/pin isn't re-warping the new rotors; use proper torque and an even bed-in procedure.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Genuine Subaru 26300SA001 16-inch Front Brake Rotor
front rotor pair after measurements show replacement is required Fitment/availability: 2009-2013 Forester and 2014-2018 2.5i 16-inch front-brake branches; quantity two, confirm VIN and rotor diameter Fitment/availability: ships in 1-3 bu…
Genuine Subaru 26300AG001 17-inch Front Brake Rotor
turbo-branch front rotor pair after measurements show replacement is required Fitment/availability: 2014-2018 Forester 2.0XT 17-inch front-brake branch; quantity two, confirm VIN and diameter Fitment/availability: ships in 1-3 business d…
front rotor pair after measurements show replacement is required Fitment/availability: Retailer-cataloged 2019-2021 Forester front branch; quantity two, confirm VIN, wheel/brake option and whether 26300SJ000 applies instead Fitment/avail…
matched front pad set when this exact early brake branch is confirmed Fitment/availability: Current supersession for retailer-cataloged 2010-2015 Forester branches including 26296SC010; confirm VIN and brake option Fitment/availability: …
matched front pad set for the exact naturally aspirated branch Fitment/availability: 2015-2017 Forester 2.5i naturally aspirated front brakes; confirm VIN and production date Fitment/availability: ships in 1-3 business days with Add to C…
matched front pad set for the 2018 naturally aspirated branch Fitment/availability: 2018 Forester 2.5i naturally aspirated front brakes only; confirm VIN Fitment/availability: ships in 1-2 business days with Add to Cart live when reviewed
matched front pad set for the early SJ turbo branch Fitment/availability: 2014-2015 Forester 2.0XT front-brake branch; confirm VIN and production date Fitment/availability: ships in 1-3 business days with Add to Cart live when reviewed
matched front pad set for the later SJ turbo branch Fitment/availability: 2015-2018 Forester 2.0XT front-brake branch; confirm VIN and 2015 production split Fitment/availability: ships in 1-3 business days with Add to Cart live when revi…
matched front pad set for the confirmed SK brake branch Fitment/availability: 2019-2021 Forester standard 11-inch front-brake branch; confirm VIN, brake package, shims and hardware Fitment/availability: direct product page and VIN-gated …
Subaru of America, Inc. (Subaru) is recalling certain 2024 Forester vehicles. The engine water pipe may have loose attachment bolts, allowing the pipe to lose its seal and leak coolant.
Campaign #23V72300026/10/2023
POWER TRAIN:DRIVELINE:DRIVESHAFT
Subaru of America, Inc. (Subaru) is recalling certain 2024 Crosstrek, Impreza, 2023-2024 Forester, and 2023 WRX vehicles. The front driveshaft assemblies' outer race may develop cracks and break.
Forester owners report the EyeSight pre-collision braking system applying hard braking with no obstacle present, including on open highways and curves, plus erratic lane-keep-assist interventions, all attributed to the windshield-mounted stereo-camera assembly. A class action ove… Severity: high.
What is the 2019-2020 Subaru Forester Starlink DCM Parasitic Battery Drain After 3G Network Shutdown?
The Data Communications Module (DCM) that powers Starlink keeps trying to reach the defunct cellular 3G network and fails to sleep, drawing excess current with the car off and killing the battery, causing repeated dead-battery no-starts even after a new battery is installed. A cl… Severity: high.
What is the 2019 Subaru Forester PCV Valve Separation Causing Loss of Power and Engine Damage (Recall WUW-08)?
On 2019 Foresters with the FB25 boxer engine, the aluminum PCV valve can separate during heating/cooling cycles, allowing valve fragments to enter the engine and cause a sudden loss of power while driving. Subaru recalled roughly 51,613 2019 Crosstrek/Forester/Ascent vehicles und… Severity: high.
What is the 2019 Subaru Forester Electric Power Steering Control-Unit Connector Short — Sudden Loss of Steering Assist (Recall WUC-88 / NHTSA 19V065)?
Subaru recalled 10,417 US 2019 Forester and Crosstrek vehicles because a connector inside the Electronic Power Steering (EPS) unit was molded with small gaps in the plastic, leaving inadequate isolation between adjacent terminals. Those terminals can short, which shuts down elect… Repairs typically run $0-$0. Severity: high.
What is the 2017-2020 Subaru Forester Denso Low-Pressure In-Tank Fuel Pump Failure Causing Sudden Stalling?
Foresters equipped with a Denso low-pressure fuel pump (part-number prefix 42022-) built before mid-2019 use a low-density plastic impeller that absorbs fuel, swells and deforms inside the pump housing. The deformed impeller binds against the housing and abruptly cuts fuel delive… Repairs typically run $0-$1,300. Severity: high.
What is the 2019-2025 Subaru Forester Windshield Spontaneous Cracking Near EyeSight Camera?
5th generation Foresters (2019+) have widespread reports of windshield cracks initiating near the EyeSight camera housing area or from the edges with no impact. The windshield design incorporates an acoustic interlayer and EyeSight camera calibration zone that creates stress conc… Repairs typically run $500-$1,500. Severity: medium.
What is the 2014-2020 Subaru Forester A/C Compressor Failure and Clutch Noise?
Foresters with the 2.5L FB25 engine experience premature A/C compressor failures, often with a noisy clutch or complete seizure. The compressor clutch bearing fails first, creating a grinding or squealing noise when the A/C is engaged. If not addressed, the compressor can seize a… Repairs typically run $600-$2,200. Severity: medium.
What is the 2014-2022 Subaru Forester Sunroof/Moonroof Water Leak From Clogged or Detached Drain Tubes?
Forester moonroofs drain rainwater through small tubes routed down the A/B pillars to discharge under the car. The corner drains clog with pollen, dirt and tree debris, or a tube pops off its nipple at the sunroof gutter. Water then backs up and overflows into the headliner and c… Repairs typically run $0-$350. Severity: medium.
What is the 2009-2019 Subaru Forester Front CV Axle Boot Tearing and Grease Leak Causing Clicking on Turns?
The front CV (constant-velocity) axle boots on Foresters crack and tear with age and from suspension flex and road debris. Once the boot splits, grease slings out and dirt/water get in, so the now-dry CV joint wears and produces a clicking or popping that is loudest during tight,… Repairs typically run $200-$600. Severity: medium.
What is the 2011-2021 Subaru Forester Catalytic Converter Efficiency Failure (P0420) — Often Triggered by Oil-Burning Contamination?
Foresters commonly throw a P0420 'Catalyst System Efficiency Below Threshold (Bank 1)' code and an illuminated check-engine light. While the converter itself is the part that degrades, the underlying root cause on FB25 Foresters is frequently the well-documented excessive-oil-con… Repairs typically run $200-$2,200. Severity: medium.
What is the 2019-2023 Subaru Forester Starlink Infotainment Screen Freezing, Rebooting and Black Screen?
The Harman-built Starlink head unit on 5th-gen Foresters freezes on startup, reboots in a loop every few seconds, or goes to a black/blank screen, often after a software update. Subaru issued TSB 15-228-18R covering 2019-2020 Forester (among other models) for display freeze-up or… Severity: medium.
What is the 2009-2022 Subaru Forester Ignition Coil Failure Causing Misfire and Hard Cold-Weather Starting?
Coil-on-plug ignition coils on the Forester are a common failure point. As the coil's internal epoxy/resin cracks with heat and age, the coil produces erratic or insufficient spark, causing single-cylinder misfires, rough idle, hesitation on acceleration, reduced fuel economy and… Repairs typically run $60-$350. Severity: medium.
What is the 2009-2021 Subaru Forester Premature Front Brake Rotor Warping / Brake Judder — Steering-Wheel Shudder When Braking?
Foresters are prone to early front brake rotor distortion (thickness variation) that produces a pronounced pulsation/judder felt through the steering wheel and brake pedal when braking, often appearing at relatively low mileage. Owners across multiple generations report warped/ju… Repairs typically run $300-$700. Severity: medium.
What is the 2019-2025 Subaru Forester FB25 Direct-Injection Intake Valve Carbon Buildup — Misfire and Rough Idle on the SK Forester?
For 2019 the SK Forester switched the FB25 from port injection to direct injection. With no fuel washing over the back of the intake valves, oil vapor from the PCV system bakes onto the valves and ports as hard carbon. Deposits restrict airflow and disturb valve sealing, and once… Repairs typically run $150-$900. Severity: medium.
What is the 2019 Subaru Forester Rear Stabilizer Bar Bracket Bolts Loosening and Falling Out (Recall WRD-21 / NHTSA 21V263)?
Subaru recalled 2019 Forester (with 2018-2019 Crosstrek and 2019 Crosstrek Hybrid) — over 400,000 US vehicles — because initial variation in rear stabilizer bracket dimensions allowed the rear stabilizer bar bracket bolts to loosen in service and detach. With bolts missing the br… Repairs typically run $0-$0. Severity: medium.
What is the 2011-2024 Subaru Forester Valve Cover Gasket and Spark Plug Tube Seal Oil Leak Causing Misfires (FB25)?
The boxer engine's two valve covers face outward and sit low on each side, exposing the cork/rubber valve cover gaskets and the spark plug tube seals to heat cycling and the path of any leaking oil. As these seals harden and shrink, oil seeps out and visibly drips onto the exhaus… Repairs typically run $250-$700. Severity: medium.
What is the 2014-2022 Subaru Forester Premature Rear Tire Inner-Edge Wear From Excess Factory Rear Toe?
Foresters routinely wear the inner edges of the rear tires bald at low mileage (often 20,000-30,000 miles). The rear suspension allows toe adjustment but not camber, and the factory frequently leaves the rear toe set too aggressively, scrubbing the inner shoulders. Because owners… Repairs typically run $100-$250. Severity: low.
