Faulty 2020 Subaru Forester: Common Problems, Recalls, And What You Need To Know

Is your 2020 Subaru Forester acting up more than you'd expect? You're not alone. While the Forester has a stellar reputation for reliability, safety, and rugged capability, a surprising number of owners have reported specific, recurring issues that can transform this beloved SUV into a source of frustration. From engine concerns to tech glitches, these "faulty" aspects demand attention and proactive management. This comprehensive guide dives deep into the most common problems plaguing the 2020 model year, backed by owner reports, technical service bulletins, and recall data. We’ll explore why these issues happen, how to detect them early, and—most importantly—what you can do to fix them, protect your investment, and decide if a used 2020 Forester is still a smart buy.

The 2020 Subaru Forester was praised for its standard all-wheel drive, spacious interior, and strong safety scores from the IIHS and NHTSA. However, beneath that polished exterior, some owners have encountered faults that contradict its usually bulletproof image. Understanding these issues is crucial whether you’re a current owner troubleshooting a strange noise or a prospective buyer researching long-term reliability. Let’s explore what makes some 2020 Foresters problematic and how to navigate each concern with confidence.

The Most Common Issue: Excessive Oil Consumption

Why Does Excessive Oil Consumption Happen?

Many 2020 Forester owners have reported excessive oil consumption, where the engine burns through oil at an alarming rate—sometimes a quart every 1,000 miles or less. This isn't just a minor inconvenience; it can lead to severe engine damage, including piston scouring, bearing wear, and ultimately, catastrophic failure if the oil level drops too low. Subaru has a well-documented history with this issue, primarily linked to piston ring design in certain FB and FA series engines. While the problem is more notorious in 2013-2018 models, some 2020 Foresters equipped with the 2.5L 4-cylinder engine (the standard powertrain) have also been affected, likely due to variations in manufacturing tolerances or break-in procedures. The rings may not seat properly against the cylinder walls, allowing oil to seep into the combustion chamber and be burned off.

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How to Detect and Prevent Engine Damage

Early detection is your best defense. Make a habit of checking your oil level at least once a month and before any long trips. Use the dipstick correctly—park on level ground, wait a few minutes after shutting off the engine, then pull, wipe, reinsert, and read. Look for signs like blueish-gray smoke from the exhaust, especially during acceleration, or a faint burning oil smell. If you’re adding more than a quart between scheduled oil changes (every 5,000-7,000 miles), it’s a red flag. Document the mileage and oil level readings. Contact your Subaru dealer immediately; they may perform a oil consumption test (driving a set route and measuring usage). Depending on the severity and warranty status, Subaru has historically covered piston ring replacements or engine rebuilds under extended warranties or goodwill campaigns for affected models. Never ignore low oil warnings—they are your engine’s final cry for help.

Infotainment System: Crashes, Freezes, and Connectivity Nightmares

Common Infotainment Problems

The 2020 Forester's infotainment system, while feature-packed with standard Apple CarPlay, Android Auto, and navigation on higher trims, is a frequent source of owner complaints. Users report random crashes, unresponsive touchscreens, Bluetooth dropouts, navigation freezes, and slow system boot times. These glitches are more than a nuisance; they can distract from driving, render essential features useless, and degrade the ownership experience. The issues often stem from software bugs in the Subaru Starlink system, particularly in early production 2020 models, and can be exacerbated by certain phone models or aftermarket accessories.

Fixes and Workarounds for a Frozen Screen

Before heading to the dealer, try these actionable steps:

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1. Perform a soft reset: Hold down the power/audio knob for about 10 seconds until the screen goes black and reboots.
2. Update software: Subaru periodically releases fixes via USB download from their owner's portal or over-the-air (OTA) for some models. Check your VIN on the Subaru website for available updates.
3. Bluetooth troubleshooting: "Forget" your phone in the car's settings and on your device, then re-pair. Ensure your phone's OS is up-to-date.
4. Clear cache: For Android Auto/Apple CarPlay, disconnect the USB cable, restart your phone, and reconnect.
   If problems persist, a dealer visit is necessary for a full system reflash or module replacement, which should be covered under the 3-year/36,000-mile new vehicle warranty if reported early.

Transmission Troubles: Harsh Shifting and Delayed Engagement

Symptoms of CVT Issues

The Continuously Variable Transmission (CVT) in the 2020 Forester has been criticized for harsh shifting (a noticeable jerk or shunt), delayed engagement (a pause when accelerating from a stop), and occasional shuddering at low speeds. While Subaru's CVT is generally reliable and designed for smoothness, these symptoms can feel unsettling and are often more pronounced when the transmission is cold. Owner forums and Consumer Reports have noted a higher incidence of complaints for the 2020 model year compared to later revisions, suggesting potential software calibration or component batch issues.

Maintenance and Solutions for a Smooth Ride

First, ensure you're using the correct Subaru CVT Fluid (NS-2) and adhering to service intervals. While Subaru claims the fluid is "lifetime," many independent mechanics and long-term owners recommend a fluid drain and fill every 60,000 miles to maintain hydraulic performance. Driving style matters: avoid aggressive acceleration from a dead stop, which stresses the CVT. If you experience shuddering or harsh shifts, have a dealer run a transmission diagnostic. They may perform a Transmission Control Module (TCM) software update, which has resolved many cases. In severe situations, internal wear may require a rebuild or replacement—check if your vehicle is still under the 5-year/60,000-mile powertrain warranty.

Electrical Gremlins: EyeSight Driver-Assist System Errors

Why EyeSight Fails and What It Means

EyeSight, Subaru's suite of safety features including pre-collision braking, adaptive cruise control, and lane keep assist, is a major selling point. However, a subset of 2020 Forester owners report false alerts, system deactivations with warning lights, or inaccurate following distance readings. These errors can be disconcerting and temporarily disable critical safety nets. Common causes include a dirty or obstructed windshield near the camera housing (located behind the rearview mirror), misaligned cameras from a windshield replacement, software bugs, or extreme weather conditions like heavy rain or fog confusing the system.

Calibration and Repairs: Getting EyeSight Back on Track

Prevention is simple: Keep the windshield area around the EyeSight cameras impeccably clean. Avoid aftermarket windshield tint or coatings that might interfere with the stereo cameras. If a warning light illuminates, first clean the area thoroughly. If the problem persists, do not attempt DIY recalibration. Visit a Subaru dealer; they have specialized tools to recalibrate the EyeSight system after any windshield work or if a fault code is stored. This is often covered under warranty if related to a defect. Document when the errors occur (e.g., only in rain, only at night) to help the technician diagnose.

Brake Wear and Rotor Issues: More Than Normal?

Factors Contributing to Fast Brake Wear

While brake wear is highly dependent on driving conditions and style, some 2020 Forester owners have encountered premature brake pad wear or rotor warping/discoloration within the first 30,000 miles. This is unexpected for a vehicle in this class and can lead to costly, unscheduled maintenance. Contributing factors may include the Forester's heavier curb weight compared to rivals, frequent stop-and-go traffic, towing near the vehicle's limit, or potentially softer factory pad compounds prioritized for quiet operation over extreme durability.

Extending Brake Life and When to Replace

To maximize brake longevity, practice smooth, anticipatory driving to reduce unnecessary braking. Use engine braking on downhill grades. Ensure your tires are properly inflated and in good condition, as worn tires increase braking demand. Have brakes inspected every 10,000 miles—many dealers include this in oil change services. If you hear squealing (wear indicator) or grinding, replace pads immediately to avoid rotor damage. Consider upgrading to ceramic brake pads for longer life and less dust, though they may be noisier. If rotors are warped (causing pedal pulsation), they may need resurfacing or replacement. Keep records; if wear is truly excessive and abnormal, it could be related to a sticking caliper, which might be covered under warranty.

Recalls and Service Campaigns: What's Covered?

Notable Recalls and Campaigns for the 2020 Forester

Subaru has issued several National Highway Traffic Safety Administration (NHTSA) recalls and manufacturer service campaigns for the 2020 Forester, but it's critical to note that not all owner-reported problems are recall-related. Always check your specific VIN. Notable actions have included:

• Fuel Pump Recall: Certain models were recalled for potential fuel pump failures that could cause stalling. This was a widespread industry issue affecting multiple manufacturers.
• Rearview Camera Software: Updates to ensure compliance with federal visibility standards.
• Software Updates for CVT/Infotainment: Some campaigns addressed drivability or system bugs.
• Potential Future Campaigns: New recalls can be issued years after production. Subscribe to NHTSA recall notifications for your VIN.

How to Check and Get Repairs Done

1. Visit the official NHTSA recall website (nhtsa.gov/recalls) and enter your 17-digit VIN.
2. Log into your MySubaru account on Subaru's website to see any open campaigns.
3. Call your authorized Subaru dealer with your VIN and ask for the Recall & Service Campaigns department. Repairs for covered recalls are free, regardless of warranty status. Keep all repair orders as proof of service.

Proactive Maintenance: Your Best Defense Against Faults

Essential Maintenance Checklist for the 2020 Forester

Vigilant maintenance is the single most effective way to prevent minor issues from becoming major, costly faults. Adhere to this non-negotiable schedule:

• Engine Oil & Filter: Every 5,000-7,000 miles with Subaru-approved 0W-20 synthetic oil. Check the level monthly.
• CVT Fluid: Consider a drain and fill every 60,000 miles for longevity, even if Subaru states "lifetime."
• Infotainment System: Periodically check for and install software updates via USB or OTA.
• EyeSight Camera: Clean the windshield behind the mirror weekly with a soft, ammonia-free cloth.
• Brakes: Full inspection every 10,000 miles; replace pads when worn to 3mm or less.
• Tires: Rotate and balance every 7,500 miles; maintain proper pressure (check monthly).
• Air Filter: Engine and cabin air filters every 15,000-30,000 miles.
• Battery: Test annually; replace every 3-5 years.

Building a Relationship with Your Dealer

Consistency is key. Use the same service department so they have your vehicle's complete history. Always request and keep detailed invoices. Politely ask your service advisor if there are any Technical Service Bulletins (TSBs) applicable to your VIN for symptoms you're experiencing. TSBs are factory-recommended repair procedures for known non-safety issues and can save you diagnostic fees. A proactive, informed owner gets better, faster service.

Buying a Used 2020 Forester? Critical Inspection Steps

Pre-Purchase Inspection Checklist

If you're shopping for a used 2020 Forester, a standard mechanic inspection is not enough. You must insist on a Forester-specialist inspection that targets these known trouble spots:

1. Oil Consumption Test: Have the seller show recent oil level readings. Ask for all maintenance records. A vehicle that has required multiple top-offs between changes is a major red flag.
2. Infotainment System Test: Test every function: radio, Bluetooth pairing (with your phone), Apple CarPlay/Android Auto, navigation (if equipped), voice commands, and USB ports. Cycle the system on and off multiple times.
3. Transmission Test Drive: Drive the vehicle when cold (first start of the day). Accelerate from a stop, listen for shuddering, and feel for harsh or delayed shifts. Test the CVT in "manual" mode to see if it holds simulated gears.
4. EyeSight Functionality: On a clear day, activate adaptive cruise control and lane keep assist on a highway. Ensure the system engages smoothly without constant warnings or deactivations.
5. Brakes and Rotors: Visually inspect pads and rotors through the wheels. Look for even wear and sufficient rotor thickness (no deep grooves or blue discoloration).
6. Recall & TSB Status: Provide the VIN to your mechanic to cross-reference with NHTSA and Subaru databases for open recalls or applicable TSBs that haven't been performed.

Vehicle History Report and VIN Deep Dive

Never buy without a comprehensive history report from Carfax or AutoCheck. Look for:

• Accident history (even minor fender benders can affect sensor alignment).
• Number of owners (fewer is generally better, but consistent maintenance matters more).
• Service records (proof of regular oil changes is critical).
• Title issues (salvage, flood damage).
  Use the VIN on the Subaru USA website to check for outstanding recalls and verify the vehicle's original equipment. A clean history report combined with a clean specialist inspection is your only green light.

If You're Experiencing Problems: A Step-by-Step Action Plan

Document Everything

Start a detailed log today. For each incident, record: date, mileage, outside temperature, specific symptoms (e.g., "infotainment screen froze 5 minutes after startup, required 30-second hold to reset"), and any error messages. Take videos or photos of warning lights or system failures. This documentation is your most powerful tool when dealing with a dealer or customer service.

Contact Subaru Customer Service and Your Dealership

1. Call the dealer's service department with your logs and VIN. Request a diagnostic scan for all modules (engine, transmission, infotainment, EyeSight). Ask for a loaner vehicle if the repair will take multiple hours—many brands offer this under warranty for significant issues.
2. If the dealer is unresponsive or dismissive, escalate to Subaru of America Customer Relations (1-800-782-2783). Have your VIN, dealer name, and detailed history ready. Be polite but firm.
3. Ask about TSBs and goodwill extensions. Even if your warranty has expired, Subaru sometimes approves "goodwill" repairs for known widespread issues if you have a strong service history with a dealer.

Know Your Rights: Warranties and Lemon Laws

• New Vehicle Warranty: 3 years/36,000 miles (bumper-to-bumper) and 5 years/60,000 miles (powertrain). Most of these issues should be covered if they appear within these limits.
• State Lemon Laws: If a substantial defect that impairs use, value, or safety is not repaired after a reasonable number of attempts (typically 3-4 tries for the same issue, or 30+ days in the shop), your state's lemon law may apply. This could entitle you to a vehicle replacement or refund. Consult a lemon law attorney—most offer free case reviews.
• Used Car Laws: If you bought a certified pre-owned (CPO) Forester, it comes with a 7-year/100,000-mile powertrain warranty from the original in-service date. A used car sold "as-is" has no warranty, making the pre-purchase inspection even more vital.

Conclusion: Is the 2020 Subaru Forester Still a Good Vehicle?

The 2020 Subaru Forester presents a classic automotive paradox: a vehicle with a generally strong reputation for durability and safety that also suffers from a cluster of model-specific, well-documented faults. The most prevalent—excessive oil consumption and infotainment instability—are not minor quirks but issues that can lead to expensive repairs or daily annoyance. However, this does not automatically make every 2020 Forester a "lemon." Many owners enjoy trouble-free ownership by being proactive, informed, and meticulous with maintenance.

For current owners, the path forward is clear: monitor oil levels obsessively, perform infotainment resets, keep software updated, and address any transmission or EyeSight warnings immediately with a dealer. For prospective buyers, a used 2020 Forester can still be an excellent, value-packed SUV—if and only if it passes a Forester-specialist pre-purchase inspection with a clean bill of health on the known problem areas. Always verify recall and TSB completion status.

Ultimately, the "faulty" label depends on preparation. Arm yourself with the knowledge in this guide, demand transparency in service records, and don't hesitate to leverage warranties and lemon laws if a defect proves stubborn. With these strategies, you can either resolve your existing Forester's ailments or confidently acquire one that will provide years of reliable, adventure-ready service. The 2020 Forester's strengths remain compelling; it's the weaknesses you must know how to manage.