2018 Subaru Forester Problems

Half of the owners who gave a mileage had the problem by about 20,000 miles. Parts named most: Windshield (18).

What to check before you buy

• Check every light: headlights on low and high, fog lights, brake lights, turn signals and reverse lights.
• Run the wipers on every speed with washer fluid, and run the defroster front and back.

Tools that help

What owners said

The air conditioning system of my 2017 Subaru Forrester suddenly went out without warning. I noticed a defect when the A/C started buzzing with a high pitched sound and blowing semi-warm air instead of cool. I took my auto to a car repair shop. He provided this diagnostic analysis: Normal coolant level in the system. Performed Leak…Owner complaint, filed 2026

Windshield cracked sitting parked matching Subaru TSB 12-192-15R except model of vehicle and Subaru stating not covered under the class action warranty extensionOwner complaint, filed 2025

Half of the owners who gave a mileage had the problem by about 13,000 miles. Parts named most: Sensor: occupant classification (18).

What to check before you buy

• The air bag (SRS) light should come on at startup and go out within a few seconds. If it stays on, the system may not work in a crash.
• Air bag recalls are some of the most serious. Check this exact VIN for open recalls and get proof any recall work was done.

Tools that help

What owners said

My SRS Airbag System warning light illuminated on the dashboard while driving. Subaru dealership service department informed me that the passenger airbag system occupant detection technology failed and the airbag function was disabled. The repair required replacement of the entire seat bottom.Owner complaint, filed 2026

The contact owns a 2018 Subaru Forester. The contact stated that while driving, the passenger's side air bag warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with ODS failure. The contact was informed that the ODS needed to be replaced. The manufacturer had covered the cost for the diagnostic test.…Owner complaint, filed 2026, at 100 miles

Half of the owners who gave a mileage had the problem by about 9,000 miles.

What to check before you buy

• Test every switch: windows, locks, mirrors, seat heaters, the screen, the backup camera, Bluetooth and every USB port.
• Watch the dash at startup. Every warning light should come on briefly and then go out.
• Have the battery and charging system tested. A weak alternator or battery drain shows up here.

Tools that help

What owners said

June 2025: I proactively replaced the battery October 2025: Left the car parked for 17 days. Dead battery. Got a jump, drove for 2 hours. May 2026: Left the car parked for 10 days. Dead battery. Got a jump, drove to mechanic who replaced it under warranty. Saw article about Subaru class action lawsuit about this issue, so I'm reporting…Owner complaint, filed 2026

The defect presents itself when the equipped data communications module (DCM) attempts to communicate with 3G cellular networks. As 3G networks within the U.S. are no longer functioning, the call will continuously fail even after the vehicle has been turned off, draining the battery and resulting in a no-start safety risk for drivers but…Owner complaint, filed 2026

Half of the owners who gave a mileage had the problem by about 11,000 miles.

What to check before you buy

• Pull out and latch every seat belt, and let each one retract on its own.
• Try every seat adjuster, and watch for a passenger air bag "off" light when an adult is in the seat.

Tools that help

What owners said

The rear seatbacks fold forward by pulling a knob on top of the seat beside headrest. Recently, as I was driving, my 6 year old child, who was restrained in a booster seat, reached up and pulled the knob, thus unlocking the seatback. I'm glad she asked, "what's this do?" or I may not have known that her seatback was not locked into…Owner complaint, filed 2022

Seat warning buzze when the driver or the passenger seat belt is not fastened the buzzer sounds for approximately 8 seconds. However, after this interval, if either belt is still unfastened buzzer continues to chime in ever increasing volume. The manual states that this disturbing second chime can be disabled by a subaru dealer. I went…Owner complaint, filed 2019, at 4,800 miles

Half of the owners who gave a mileage had the problem by about 20,000 miles.

What to check before you buy

• Ask the seller not to warm the car up, and start it cold. Listen for ticking, knocking or a rough idle in the first minute.
• Pull the oil dipstick and the oil cap. Low oil, a gasoline smell or a milky film on the cap are reasons to walk away or get an inspection.
• Plug in an OBD2 scanner. Stored or pending codes matter, and so do readiness monitors that show "not ready", which usually means the codes were cleared right before the sale.
• Ask for oil change records. A gap in the records on a model known for engine complaints is a negotiating point at minimum.

Tools that help

What owners said

The A/c compressor seized up causing the belt to break. Looked up online and it seems it's a common occurrence with this year and model.Owner complaint, filed 2026

Ticking noise on cold start up as well as reduced acceleration speed and torque. Diagnostics point me to believe the AVCS solenoids are beginning to fail prematurely. This has not been confirmed by a dealership and the issue is reproduced during any driving. There are no CEL lights active or codes stored. The vehicle currently has 74,***…Owner complaint, filed 2025

Half of the owners who gave a mileage had the problem by about 18,000 miles.

What to check before you buy

• On the test drive, press the gas gently and firmly. The response should be smooth with no lag or surge.
• Set the cruise control, then use resume and cancel to make sure each one works.

Tools that help

What owners said

While reversing out from a drive way and turning to get into the lane the cars velocity massively increased from no throttle coasting to approximately 20 mph. Panic braking and enough space due to it being a cul-de-sac saved us, but we were launched forward in our seats and slammed back during breaking. we were very fortunate not to have…Owner complaint, filed 2023

The contact owns a 2018 Subaru Forester. The contact stated while driving approximately 2 MPH while pulling into a parking spot, the vehicle lurched forward. The contact stated that she heard the engine revving but did not notice any warning lights. The contact had not taken the vehicle to the local dealer. The vehicle was not repaired.…Owner complaint, filed 2022, at 19,000 miles

Half of the owners who gave a mileage had the problem by about 8,000 miles.

What to check before you buy

• Turn the wheel lock to lock while parked and listen for groaning, clicking or binding.
• On a straight road the car should track straight with the wheel centered and no loose feeling.
• A power steering warning on the dash, even briefly, deserves a mechanic’s look before you buy.

Tools that help

What owners said

1. The car's steering could be malfunctioning . The car is available for inspection upon request. 2. The steering wheel occasionally and without warning suddenly FEELS loose and "disconnected" from its ability to steer the car -- until I turn the steering wheel about a quarter to a half an inch and the steering FEELS normal again. I…Owner complaint, filed 2025

The contact owns a 2018 Subaru Forester. The contact stated that after shifting to drive, the steering wheel suddenly became very difficult the turn in either direction. The contact stated that the power steering fault message was displayed. After turning off and restarting the vehicle, the vehicle operated as needed. The cause of the…Owner complaint, filed 2023, at 51,000 miles

Half of the owners who gave a mileage had the problem by about 4,000 miles.

What to check before you buy

• Drive it from cold if you can. Shifts should be smooth in every gear, including reverse.
• Feel for slipping (revs rise without the car speeding up), shudder at low speed and a delay when you put it in gear.
• Listen for whining, which is a common CVT complaint, and clunks when you go from drive to reverse.
• If it has 4WD or AWD, engage it on the test drive and ask when the transmission and differential fluids were last changed.

Tools that help

What owners said

With no warning. my 2018 Subaru Forrester had its transmission lock up on me in the pouring rain while I was traveling 60 miles an hour. I purchased the car new in 2018, had it regularly serviced and it only has 4700 miles on it. If I was not buckled in, I would have gone through the windshield. The car spun around, jumped the divider…Owner complaint, filed 2024

Rear wheel bearings are needing to be replaced at 65,000 miles, car is less than 5 years old. No specific incident is connected to this premature failure.Owner complaint, filed 2023

Half of the owners who gave a mileage had the problem by about 14,000 miles.

What to check before you buy

• Smell around the engine bay and under the rear of the car for raw fuel.
• On the test drive, accelerate firmly from a stop and up a grade. Stumbling, surging or a flashing check engine light are red flags.
• Fuel pump recalls are common. Check this exact VIN for open recalls before you buy.

Tools that help

What owners said

Discovered (06/08/26) that the engine would not turn over without the accelerator being pushed down when warm from driving after resting 30-60 minutes. Car was taken to Capital Subaru. No codes were triggered. The throttle body was cleaned. No change. The Crankshaft Position Sensor was replaced, the ECU was reprogrammed, then the EVAP…Owner complaint, filed 2026

Fuel Pump. Stalled in intersection in middle lane at expressway entrance. Car stalled 3 x before I could move out of intersection to safety. Kept pressing gas peddle but car would not move then sputtered going a few feet before stopping again. 3x Cars were going thru light and around me at 45 mph. Honking, swerving into other lane…Owner complaint, filed 2025

Half of the owners who gave a mileage had the problem by about 15,000 miles.

What to check before you buy

• The pedal should feel firm and the car should stop straight without pulling, grinding or a pulsing pedal.
• The ABS and stability control lights should go out after startup and stay out.
• Look through the wheels at the rotors. A deep lip on the edge means brakes are due soon, which is a fair thing to negotiate on.

Tools that help

What owners said

The CVT parking brake switch has failed. The failure leads to the inability to remove the key from the ignition switch when the vehicle is in park. This happens repeatedly, with the only temporary solution being to restart the car, and force the shift lever from "park" to "drive" and back again rather violently. Yes, the problem was…Owner complaint, filed 2026

The contact leased a 2018 a subaru forester. The contact stated while driving at 25 MPH up a hill, the brake pedal was applied but failed to respond and vehicle rolled backwards and crashed into a tree. The door failed to open. There were no reported injuries. A police report was filed. No air bags deployed. The vehicle was taken to…Owner complaint, filed 2020, at 35,000 miles

What to check before you buy

• Drive over a few bumps and potholes slowly with the radio off and listen for clunks or rattles.
• Check the tires for uneven wear on the inside or outside edges, a sign of alignment or suspension trouble.
• Look behind the wheels for oily, wet shocks or struts.

Tools that help

What owners said

I was driving on the interstate when car started vibrating and making a terrible sound. Dealership advised both front lower control arm bushings were worn and had play. Had them replaced but because they are rubber technician advised this will most likely happen again. My car has only 46k. I bought it new in 2017.Owner complaint, filed 2025

Lower control arm bushing initial stages of premature failure. Issue is a known common defect. No safety incident yet, but potential for steering and control issues while driving. Bushing crack was discovered during brake inspection at 45k miles.Owner complaint, filed 2024

Half of the owners who gave a mileage had the problem by about 3,000 miles. Parts named most: Assist (5).

What to check before you buy

• Where it is safe, try the adaptive cruise and lane keeping on the test drive and watch for sudden braking or warnings with nothing there.
• Check the windshield in front of the camera and the bumper sensors for cracks, chips or poor repairs.
• Ask whether the windshield has been replaced. The camera has to be recalibrated afterward, and many shops skip it.

Tools that help

What owners said

Component: EyeSight Camera motherboard failure due to cold weather (Code B28B3). Possibly an improper conformal coating that is susceptible to cracking or building moisture which then freezes and cracks components of the camera system. Safety Concern: It appears this is common in Subaru EyeSight systems for all models years 2017-2019. A…Owner complaint, filed 2024

After ice storm and after car was cleaned of any ice, The emergency braking appeared to be confused by the ice on the road. I decided to not go forward once I was on the street as it seemed to slick and tried to back up to my house to get into my driveway which is on a slope. In reverse, the brakes kept slamming on after a foot or two…Owner complaint, filed 2024

Half of the owners who gave a mileage had the problem by about 12,000 miles. Parts named most: Body (13).

What to check before you buy

• Look underneath with a flashlight. Utah road salt is hard on frames, brake lines and the bottoms of doors.
• Open and close every door, the hood and the liftgate, and lock and unlock each one.
• Use a paint thickness gauge and compare panels. A panel that reads very differently from the rest has likely been repaired.

Tools that help

What owners said

Doors are rusting in areas where seam sealer was improperly applied. Water collects in these areas and rust is evident and perforating the metal, separating the inner and outer shell of the door. Dealership took the vehicle in for warranty and stated Subaru would not cover the defect until the rust had entirely perforated its way through…Owner complaint, filed 2023

I was traveling on the highway when I heard a clunk and noticed that my hood had released and was bouncing against the hood safety release. I had not touched the hood release lever, and the hood was fully closed prior to coming unlatched. I have not had any prior accidents or work performed on the vehicle that might have affected the…Owner complaint, filed 2023

Half of the owners who gave a mileage had the problem by about 20,000 miles.

What to check before you buy

• Read the four-digit DOT date on each tire. Tires older than about six years should be replaced, whatever the tread looks like.
• Check tread depth on all four. On AWD vehicles all four tires should match.
• The tire pressure light should go out after startup.

Tools that help

What owners said

Wheel studs are of inferior quality, which leads to galling. Replacement of a wheel results in snapped studs. I have replaced three so far on two occasions within a week. Swapping to a spare in an emergency with broken studs will leads to accidents. As of now, I will need to drive with one broken stud to get it fixed. This is a known…Owner complaint, filed 2025

Purchased my 4 tires, Good Year Assurance WeatherReady in Dec 2019 with 42,304 miles. My tire indicator light came on alerting of low tire pressure. Upon inspection of rear passenger tire, substantial dry rot on tire sidewall, inside. I only have 39,800 miles on the tire. Tire is a 60,000 mile tire. Tire is defective due to dry rot. Dry…Owner complaint, filed 2022