RoadVitals

2018 Subaru Legacy Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
116
Latest Jul 8, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
15
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
8

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2018 Subaru Legacy, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

41
reports

From owner reports, verbatim

The vehicle on board video entertainment display has stopped working properly. It does not allow any input to the touch screen. And the only way to regain some functionality is by pressing the steering wheel source button. However it works intermittently. And this causes Driver Distraction while driving.

NHTSA ID 11749001 · filed Jul 8, 2026

The factory Harman Kardon Starlink touchscreen infotainment system in my 2018 Subaru Legacy has experienced severe touchscreen delamination. The display has developed widespread bubbling beneath the glass and now generates repeated "ghost touches" without any driver input. The system activates buttons, changes screens, opens menus, and performs functions on its own while the vehicle is being driven. These unintended inputs create a driver distraction and make it difficult to use navigation, audio, and vehicle information functions safely. This appears to be a known and widespread issue affecting 2018 Subaru Legacy vehicles equipped with Harman Kardon Starlink head units. The problem is caused by touchscreen delamination and continues to worsen over time. Subaru of America was contacted regarding the defect but declined assistance. The vehicle currently has approximately 117,000 miles. The issue is not the result of damage, misuse, or modification of the vehicle. I am submitting this complaint because the touchscreen operates without driver input and creates a distraction while driving.

NHTSA ID 11745323 · filed Jun 19, 2026
All 41 reports naming electrical

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

31
reports

From owner reports, verbatim

I have been going back and forth with Subaru of America's Advocacy department for about two weeks now, I purchased my 2018 Subaru legacy back in August of 2023. My head unit in my vehicle has now completely stopped working, I have explained that now my back up camera is now freezing and going black and that it poses a safety risk, but they are not helping me, all they keep telling me was the extended warranty for that specific issue expired in July of 2023. when I checked Subaru's recall website, they have completed out that recall in July of 2025, I have never taken my car in for this issue, I was also never aware of this recall. I have all emails going back and forth with the advocacy department. the recall was for "FMVSS 111" per Subaru advocacy dept. my car has a total of two recalls that have been completed out but it shows they were completed out July 26, 2025, I have had possession of this vehicle since 2023 and was never made aware of any open recalls so I never have taken my car into get anything corrected. this vehicle's star link system is still linked to the previous owner because I can't get it to be linked to me yet.

NHTSA ID 11691937 · filed Oct 7, 2025

MAR 2024: 2018 Subaru Legacy, 36,000-miles. (1) Front Windshield had crack in it randomly one day. Coming up from bottom heating element. Easily able to find similar crack shape online. Find lots of windshield crack issues online for Subarus. Zero action from Subaru on this. (2) Broke again 11 months later [FEB 2025] in similar fashion, randomly one day.

NHTSA ID 11680122 · filed Aug 12, 2025
All 31 reports naming visibility

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

11
reports

From owner reports, verbatim

The infotainment touchscreen in my 2018 Subaru Legacy experiences “ghost touch,” where the screen registers inputs without driver interaction and becomes unresponsive. While driving, the screen changes settings on its own and distracts the driver. As a result of the touchscreen malfunction, critical safety features including Blind Spot Warning and Lane Keeping Assistance became disabled. This directly impacted safe vehicle operation. The issue was diagnosed by an authorized Subaru dealership, which confirmed the head unit is defective and requires replacement. Subaru previously issued a warranty extension for this known defect. Subaru of America denied goodwill assistance despite the safety-related nature of the defect.

NHTSA ID 11712979 · filed Jan 23, 2026

The infotainment head unit system and screen with the backup camera is completely malfunctioning. There have been instances where the screen glitches out while backing up and I have almost been in a collision. The head unit makes constant random noises, and screen pop ups that cannot be turned off. This makes for highly distracted and unsafe driving as it makes it quite difficult for the car user to maintain sole focus and attention to the roadways and driving. The extreme glitchiness and phantom touches/noises are just as a distraction and safety concern as driving while using a cellphone which is against the law. The infotainment unit should be fully recalled, not just have a warranty extension. The Subaru dealership has inspected the head unit and declared the failure that was part of a now expired warranty extension. The failures came without warning; however the glitches have gotten more frequent and worse over time.

NHTSA ID 11680921 · filed Aug 15, 2025
All 11 reports naming driver assistance

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

10
reports

From owner reports, verbatim

My wife experienced an unintended acceleration in her 2018 Subaru Legacy. My wife had begun to slowly back out of a parking space in a school parking lot when her 2018 Legacy went into an unintended rapid acceleration in reverse. The car took off in reverse and did not respond to her applying the brakes. Somehow she managed to steer the car which was rapidly acceleration in reverse, virtually uncontrollable, and guide the car down a row of parked cars until she clipped the front of another car at the end of the row and her car came to a stop. Thank God there were no students in the parking lot at the time! The floor mats in our Legacy are Subaru mats that lie flat and in no way would affect the accelerator pedal. As the car was accelerating in reverse, and she had removed her foot from the accelerator onto the brake, the brakes did not slow the car. There is considerable damage to the right rear of the car and trunk. After the accident, when the car was restarted, the accelerator and brakes worked fine and she was able to drive it home from the scene. Thank god students were not in the parking lot! [XXX] [XXX] (cell) [XXX] Nashua, NH 03062 (May-Oct), Ponte Vedra, FL (Nov-April) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11694618 · filed Oct 20, 2025

For context, we are the original owners of the 2018 Subaru Legacy car (leased in 2018, and then purchased outright in 2022). At the time of the incident, the car was in pristine condition. We had the oil changed in accordance with the maintenance agreement during the lease, and then every 6,000 miles or whenever the dealership called us to bring in the car. The car had 39,000 miles on it at the time of the incident and had an oil change as recently as 2.5 months prior. While stopped in traffic, the car began making a sputtering noise and all the lights on the dashboard turned on at the same time. When pushing on the gas the car began rolling down the hill towards the car behind me. I put the car into park and then turned it off, and then waved traffic to pass me. After reinserting the key into the ignition, the car began to make the sputtering noise again, but I was able to move the car very slowly onto the shoulder of the road. The greatest danger is that this occurred in moving traffic. Thankfully, there was no harm done to me or anyone else. I had the car towed to the nearest auto mechanic shop. Initially, the shop informed me it was an issue with the spark plug, but upon further investigation, they told me the problem was with the engine and asked me to bring it to the dealership. The dealership is unsure of the exact issue, but stated that it was engine failure (more details in screenshots below). The technician has stated that we will need to completely rebuild the engine to fully identify and fix the problem.

NHTSA ID 11633995 · filed Jan 3, 2025
All 10 reports naming engine

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

8
reports

From owner reports, verbatim

My wife experienced an unintended acceleration in her 2018 Subaru Legacy. My wife had begun to slowly back out of a parking space in a school parking lot when her 2018 Legacy went into an unintended rapid acceleration in reverse. The car took off in reverse and did not respond to her applying the brakes. Somehow she managed to steer the car which was rapidly acceleration in reverse, virtually uncontrollable, and guide the car down a row of parked cars until she clipped the front of another car at the end of the row and her car came to a stop. Thank God there were no students in the parking lot at the time! The floor mats in our Legacy are Subaru mats that lie flat and in no way would affect the accelerator pedal. As the car was accelerating in reverse, and she had removed her foot from the accelerator onto the brake, the brakes did not slow the car. There is considerable damage to the right rear of the car and trunk. After the accident, when the car was restarted, the accelerator and brakes worked fine and she was able to drive it home from the scene. Thank god students were not in the parking lot! [XXX] [XXX] (cell) [XXX] Nashua, NH 03062 (May-Oct), Ponte Vedra, FL (Nov-April) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11694618 · filed Oct 20, 2025

I have a 2018 Subaru Legacy 2.5. The front catalytic converter failed April 2022 with 130k miles. the part was replace by Subaru and the part has failed again. Oct 2023 with 180k miles. Exhaust fumes enter the passenger compartment (which are Carbon Monoxide). The same part has failed two times in a short period of time. Subaru states this is not a warranty issue .This must become a recall.

NHTSA ID 11553381 · filed Nov 3, 2023
All 8 reports naming fuel system

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

6
reports

From owner reports, verbatim

My wife experienced an unintended acceleration in her 2018 Subaru Legacy. My wife had begun to slowly back out of a parking space in a school parking lot when her 2018 Legacy went into an unintended rapid acceleration in reverse. The car took off in reverse and did not respond to her applying the brakes. Somehow she managed to steer the car which was rapidly acceleration in reverse, virtually uncontrollable, and guide the car down a row of parked cars until she clipped the front of another car at the end of the row and her car came to a stop. Thank God there were no students in the parking lot at the time! The floor mats in our Legacy are Subaru mats that lie flat and in no way would affect the accelerator pedal. As the car was accelerating in reverse, and she had removed her foot from the accelerator onto the brake, the brakes did not slow the car. There is considerable damage to the right rear of the car and trunk. After the accident, when the car was restarted, the accelerator and brakes worked fine and she was able to drive it home from the scene. Thank god students were not in the parking lot! [XXX] [XXX] (cell) [XXX] Nashua, NH 03062 (May-Oct), Ponte Vedra, FL (Nov-April) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11694618 · filed Oct 20, 2025

I front passenger window stop working and does not roll up and down. I had this issue and reported the issue since I bought it brand new from the lot. I main main audio console has been replacement 2 times already from defectives. My tires TMPS is flashing now but my tire pressure are fine. My incline break button comes on by itself from time to time and does not allow for me to move the car.

NHTSA ID 11682969 · filed Aug 25, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

4
reports

From owner reports, verbatim

What component or system failed or malfunctioned, and is it available for inspection upon request? Door Pillar Rust, yes its available for inspection. How was your safety or the safety of others put at risk? UNKNOWN Has the problem been reproduced or confirmed by a dealer or independent service center? Contacted Subaru of America Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Not yet Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?no. Both front doors have rust perforating from the inside. As you can see in the attached pictures, this is not surface rust nor an issue caused by my actions. After researching online, I found numerous similar issues reported not only with Legacy models but also with Imprezas, Outbacks, and Foresters.

NHTSA ID 11652509 · filed Apr 3, 2025

My car's belt had been screeching for a few weeks. I was planning on taking my car in the next day. When i turned my car off, all the electrical went out and it started smoking on the driver's side. I got my car towed to the nearest auto shop. They replaced the battery and belt and yet the electrical was still out. When they tested the fuse, the driver's mirror caught on fire and was smoking. Thank goodness I was not driving when this occurred as that could have been scary. They replaced the fuse, but now I can't auto up / down my window. When I reached out to Subaru, they wanted $200 just to inspect it and $1,000 for a mirror replacement. I told them the situation and they didn't care. I also emailed them and never received a response. I googled this issue and other Subaru cars have had this issue and noted water coming in the mirror so now I'm frightened to get a car wash. There was no warning light or anything unfamiliar.

NHTSA ID 11570260 · filed Feb 6, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

4
reports

From owner reports, verbatim

Replaced steering rack 2/12/20 Replaced steering rack 12/07/22 Replaced sway bar links 11/09/23 Inspection found rear Lateral Link Bushings torn and alignment hardware seized in bushings torn and seized/replaced bushings and hardware to complete a proper alignment. 01/23/24 Replaced front sway bar links and strut mounts and performed alignment

NHTSA ID 11627936 · filed Nov 29, 2024

WHEN VEHICLE GOES OVER 50 MILES AN HOUR, PULLS TO THE LEFT.

NHTSA ID 11205478 · filed May 3, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

3
reports

From owner reports, verbatim

The driver’s side airbag of 2018 Subaru Legacy deployed as I was reversing out of a parking lot going approximately 5mph. It has not been fixed due to the company’s negligence. One of Subaru’s accident advocate specialist claimed the engineer found a mysterious brown liquid that caused the airbag to deploy although I had not been in the car for two hours nor was I drinking any substances; especially “brown”. My and other’s safety was put at risk to a degree that is fatal, I was a short distance from the highway to head home. Had I been driving at the normal highway speed in my city (55mph) with the airbag deploying in my face, with others on the road, and inhaling blinding fumes, I can assure you it would’ve been detrimental to my and other’s being. The car was inspected for a few months by multiple Subaru engineers, one of the accident advocate specialist refused to give me any documentation or pictures proving this was the cause. There was absolutely no warning lights or other malfunctions occurring. The car is in great condition, and in a previous accident did not deploy its airbags.

NHTSA ID 11580183 · filed Mar 29, 2024

I was going down the hill in my development, I made it approximately 2-300ft at 7-10MPH when suddenly there was a loud “bang”. I could not see anything, my airbags had deployed and blocked my field of vision. I ended up hitting an electrical pole. There was no need for the airbags to go off. I could have been killed. There is no airbag recall on my VIN number.

NHTSA ID 11491503 · filed Oct 30, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

2
reports

From owner reports, verbatim

Replaced steering rack 2/12/20 Replaced steering rack 12/07/22 Replaced sway bar links 11/09/23 Inspection found rear Lateral Link Bushings torn and alignment hardware seized in bushings torn and seized/replaced bushings and hardware to complete a proper alignment. 01/23/24 Replaced front sway bar links and strut mounts and performed alignment

NHTSA ID 11627936 · filed Nov 29, 2024

I was going down the hill in my development, I made it approximately 2-300ft at 7-10MPH when suddenly there was a loud “bang”. I could not see anything, my airbags had deployed and blocked my field of vision. I ended up hitting an electrical pole. There was no need for the airbags to go off. I could have been killed. There is no airbag recall on my VIN number.

NHTSA ID 11491503 · filed Oct 30, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

2
reports

From owner reports, verbatim

225/50R18. Factory OEM, serious dry-rot necessitating replacement due to safety concerns. Tires are slightly older than 3.5 years (2018 model year purchased 04/18) with less than 40k miles. All four tires exhibit the dry rot, but the photo is representative of the most serious case of concern. No concerns related to tread wear depth.

NHTSA ID 11435634 · filed Oct 5, 2021

P225 / 50 R 18 On 8/28/2021, I noticed my front drivers tired looked weird. Upon inspection, it looked like dry rot. I do have a picture of the tire. I immediately went to Tire Kingdom and purchased a set of of 4 new tires. Tire Kingdom confirmed that the tire looked defective. Still plenty of tread, but the side was separating causing it to not be safe. There was no warning on the car system as the tire had not yet completely separated.

NHTSA ID 11431524 · filed Sep 2, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Exterior lighting

Reports naming headlights, tail lights, turn signals and other exterior lighting.

2
reports

From owner reports, verbatim

The computer screen has an issue where there is bubbling in the lamination causing the screen to go nuts and become a distracting hazard that you can not shut off. It's a known Subaru Legacy issue and should be a recall. A new screen is $2000 plus, which is not feasable for the average person to pay and it's become a safety hazard, ect.

NHTSA ID 11745102 · filed Jun 18, 2026

The Driver Side Rear View when I started the Car back in January of 2024 after car had been running for 30 Seconds smoke and Fire flames were seen coming through that rear view mirror immediately contacted Subaru of America and was called back with urgency and they fixed this issue but since then I haves a few other issues I believe relate to the wiring inside the vehicle and due to the wiring, which caused the fire. I have tried to contact Subaru of America and let them know this and have had no luck with any type of help with other repairs.

NHTSA ID 11687253 · filed Sep 15, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

1
report

From owner reports, verbatim

WHILE STOPPED AT A RED LIGHT AS SOON AS THE LIGHT TURNED GREEN I PROCEEDED TO ACCELERATE AND HEARD A RATTLE AND THEN A LOUD BOOM EXPLOSION SOUND. MY TORQUE CONVERTER, ENGINE, AND FLEXPLATE EXPLODED CAUSING IT IN OPERABLE AND PLACED ME IN AN UNSAFE LOCATION STRANDED ON THE ROADWAY. SUBARU OF AMERICA HAS NOW HAD THE CAR SINCE THANKSGIVING THIS A MAJOR SAFETY PROBLEM,I STILL DON'T HAVE MY CAR.

NHTSA ID 11292333 · filed Dec 31, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

1
report

From owner reports, verbatim

PURCHASED A NEW SUBARU LEGACY FEB. 28, 2018. AFTER ONLY 70 MILES THE WARNING LIGHT FOR SEAT BELTS AND AIRBAG MALFUNCTION APPEARED ON A STARLINK SYSTEM AND DASH. AFTER IMMEDIATELY TAKING IT IN AT THE LOCAL CAR DEALER, SERVICE AGENTS CLAIMED THAT A "RODENT" HAS CAUSED THE DAMAGE. AFTER FURTHER RESEARCH, WE HAVE DISCOVERED A NATIONAL CIVIL SUIT AGAINST SUBARU. APPARENTLY THEY ARE USING BIODEGRADABLE MATERIALS ON THE WIRING OF MANY NEW CARS THAT ATTRACTS SQUIRRELS AND MICE. WE HAVE LIVED AT OUR CURRENT RESIDENCE FOR OVER 35 YEARS WITH NUMEROUS CARS IN THE DRIVEWAY WITHOUT THIS PROBLEM. CONSUMER REPORTS ON JULY 10,2017, REPORTED THAT THEY HAVE UNCOVERED VARIOUS TECHNICAL BULLETINS FROM FORD, GM, HONDA, TOYOTA, AS WELL AS SUBARU CONCERNING THIS ISSUE. DEALER, AT THE MOMENT, REFUSES TO FIX IT WITHOUT EXTENSIVE COST TO US. THIS IS A SERIOUS PROBLEM WITH THIS CAR--DRIVING IT WOULD NOT ONLY BE UNSAFE BUT ILLEGAL SINCE THE AIR BAG AS WELL AS THE SEAT BELTS SHOW A MALFUNCTION. FIXING IT MAY NOT SOLVE THE PROBLEM ON PERMANENT BASIS.

NHTSA ID 11076906 · filed Mar 8, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

1
report

From owner reports, verbatim

I front passenger window stop working and does not roll up and down. I had this issue and reported the issue since I bought it brand new from the lot. I main main audio console has been replacement 2 times already from defectives. My tires TMPS is flashing now but my tire pressure are fine. My incline break button comes on by itself from time to time and does not allow for me to move the car.

NHTSA ID 11682969 · filed Aug 25, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .