Thermo Control Valve assembly has failed resulting in loss of use for the following: Rear Automatic Brake, Eye Sight lane keeping, loss of heat in cabin and failure of coolant to circulate within engine possibly leading to engine failure, loss of cruise control and check engine light coming on. Reference TSB [XXX] . Without cabin heat vehicle is not useable in current cold temperatures (Currently 22 degrees Fahrenheit in Ohio on December 14, 2023). Dealer has confirmed part failure. Issue must be addressed to continue operating vehicle so I paid $1185.87 out of pocket to repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2020 Subaru Outback driver assistance complaints
Page 2 of 3: complaints 11 to 40 of 62, newest first, as owners wrote them.
A well-known failure of the Thermal Control Valve (TCV) occurred, which disabled many or most of the safety features on the car in addition to crippling the heat output in the cabin. Additionally, depending on which way the valve sticks, it could overheat the car and ruin the engine, or worse. Car is under 4 years old and repair estimate is nearly $1900. There is a technical safety bulletin [XXX] that outlines a redesigned TCV. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
On November 21th, 2023, we were driving on a 30 mph street at 8:00 pm with no traffic and our automatic emergency braking system deployed on our 2020 Outback, we jolted to a stop for no apparent reason. This could have been dangerous if a car was behind us. Just had our oil changed with free inspection at Miller Hill Subaru 1 week prior. First incident. Will have the dealership inspect ASAP. The "Auto Start /Stop No Activity Detected" indicator message light came on afterward.
Per Subaru there is something wrong with the Cockpit Control Module (CCM) that is causing a constant / parasitic draw on the battery. This results in the battery being dead within 4 hours, leaving us constantly stranded. Because the CCM also controls the electrical system, many of the safety features (auto breaking, lane departure, etc) turn off randomly. This is the diagnosis from our local Subaru dealership: COCKPIT CONTROL MODULE IS DRAWING 2 AMPS. WITH COCKPIT UNPLUGGED THERE IS STILL A 1 AMP DRAW. WILL NEED TO REPLACED CCU THEN FIGURE OUT WHERE THE OTHER 1 AMP DRAW IS. UNABLE TO DIAGNOSE WITH MULTIPLE SYSTEMS DRAWING I have opened a case with Subaru of America, but with no resolution.
I was driving and car accelerated without warning. Hit partially open garage door, only stopped after hitting and damaging back wall of garage. Significant damage to car, items in the garage and garage wall. There was no warning whatsoever. As of yet the car has not been assessed as to the cause of the malfunction.
I purchased the lease for the vehicle in January 2020. I first notified Subaru in Austin of an obvious "glitch" with the computer operating system in April 2020. The "glitchy" OS challenges came and went, I would notify Subaru and they would remedy the issue with a "patch" update at the service center. On April 29 2022 a clear night and a suitably clean vehicle, the RAB system completely failed to recognize/notify/respond to a mailbox behind me, upon impact the mailbox broke the rear windshield. on June 28 2022 the vehicle fails to start, and is "surging" completely draining a new jumper box, and then promptly burning it out, the box will no longer operate. Put in a new battery(#1), make an appointment for service on the vehicle. The dealership replaces the battery(#2), computer updates are completed. Vehicle goes to the body shop for the rest of the work to be completed. 28 days later, I arrive to pick up my vehicle, all work is complete. However the vehicle will not start (again) Auto body shop replaces the battery(#3).on 9/23/2022 after dark, my Subaru Outback 2020 Limited, stops and puts its Parking break on., all dials spike, then dies, rear hatch signal goes off continuously, regardless of its actual state of open/close. The vehicle refuses to jump with a new jumper box. Outback 2020 is successfully jumped by a newer vehic. New battery installed(#4). 9/29/2022 another appointment at Subaru service center to look at my vehicle, they swap out the battery(#5) and update computer. Upon pickup vehicle is without trailer lights, 3 airbag lights on, ABS light on/off. 10/17/2022 appointment at a different service center for an Oil change service, 10/18/2022 diagnostic check appt, 3 blown fuses found. 11/16/2022 Austin service, found many lost comm. codes.- reprograms , engine control module. Outback 2020 intermittently has problems opening and closing hatch/windows, display loading issues, many warning/hazzard lights & signals on/off (from April 2022- present day.)
While driving my Subaru Outback, I encounter a problem where the Starlink Multimedia system abruptly goes black. Shortly after, the driver information center also goes black. Although the car continues to run, the cruise control, if engaged, and the EyeSight safety system shuts off as well. Both systems then undergo a reboot.
-The windshield has cracked in the same place for no apparent reason. -The cracked windshield can affect the use of the safety systems built into the windshield. -I'm not sure how this can be "reproduced" as we are talking about a broken windshield although the windshield has been fixed already once and now, the second break has occurred. -Not inspected but replaced once. It is currently broken and can be inspected again if need be. -The first one appeared in August 2022, the second in May 2023
A crack has spontaneously appeared at the base of my windshield after no apparent damage. The crack is spreading across my windshield and will affect my adaptive cruse control and automatic emergency breaking if it interferes with the Subaru eye-sight system at the top of my windshield. I have not taken the vehicle in for service but I did see this was an issue that lead to recalls on previous outback models but not currently a recall for the 2020 Subaru Outback. I do not have any current warning lamps or messages.
The contact owns a 2020 Subaru Outback. The contact stated that while driving in reverse the vehicle crashed into a metal dumpster causing severe damage to the rear end of the vehicle. During the incident, the audible backover prevention alert indicating that the vehicle was nearing an object did not activate causing the vehicle to be driven into the dumpster. During the incident, the front passenger sustained neck and back injuries that later required medical treatment. No police report was taken and the vehicle was driven from the scene. The cause of the failure was not determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 13,000.
Electrical problems cause frequent battery replacement and for the battery to drain at an alarming rate. The car has to be jump-started to be used, and the car battery will drain immediately as soon as the drive is over( even if it's hours). There is/was a class action lawsuit against Subaru of America, as the action says that Subaru failed to recall the vehicles and fix the problem. I'm paying a note on a 28k car that I can't get out of the driveway without jump-starting the car, and if I stop to run in a store when I return, the vehicle will not start. It's completely unsafe and ridiculous. I've taken this to the dealership (Ken Fowler of Ukiah, CA) and other mechanics, and no one has known about this issue or been able to fix it. Someone, please help.
The contact owns a 2020 Subaru Outback. The contact stated that while driving at an undisclosed speed, the Eyesight System inadvertently deactivated, causing the power steering to fail and the vehicle to go into Limp Mode. The contact turned off and restarted the vehicle to correct the failure. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 121,000.
Blind spot warning does not turn on when there is actually a vehicle truly in the blind spot. Visibility in new cars via windows is blocked and insufficient, and the blind spot warning does not activate at the right time. Drivers could easily cut someone off with less than a foot in front of the car in the blind spot, because there is no proper warning. Warning only turns on when vehicle could hit another car when switching lanes. Not before when visibility is limited by vehicle structure and mirrors. Also, touch screens are a huge hazard in cars. Having to look at a touch screen in order to control air or other items is a huge safety hazard. Tactile controls and buttons are much safer. Not to mention touch screens and screens do not work during heatwaves. Car sitting in temperatures above 80 degrees, have major issues with computer screens working. Forward collision and driver monitor warning is also a hazard. Forward collision warning occasionally turns on when there is fog or smoke. Additional warnings distract drivers from actually looking at the road. Driver monitor warning turns on when looking through turns, causing drivers to be distracted and look at why the vehicle is beeping at them instead of paying attention to where they are driving.
The car set overnight (was fine) next AM no electrical. Everything locked except driver's door and passenger door. No battery charge at all. Everything DEAD.
I was driving in a residential neighborhood at low speed, about 20 mph. I slowed down because I needed to park at the curb, and also I was approaching a large speed bump. This was one of the wide, flat ones. I pulled over to the right curb a couple of car lengths before the speed bump, preparing to park. I went over the bump, accelerating a tiny bit to get over the bump. I was going maybe 10 miles an hour. As I came down off the bump, or shortly after that, the accelerator pedal moved down away from my foot. I felt the pedal move down and away so that my foot was no longer touching it. At the same time, the engine speed surged (I heard it rev), and the car lurched forward for a second or two. I put my foot on the brake and also saw the obstacle detection on the instrument panel and saw the red lights and heard the beeping, and the car stopped moving. I don’t know whether I braked first or the car did. I was still about 2 car lengths away from a parked car in front of me when my vehicle stopped. I took my vehicle to a dealership the next day. They performed diagnostics but were unable to find anything wrong with it.
Two issues. Main cabin computer reboots randomly. This causes other safety systems, Eyesight, to stop working until the device boots back up. This is 2020 and "fix" / update for cockpit control module wasn't available until Feb. 2021.Thsi did not fix the problem. Dealership updated cockpit control module again in Dec 2021 and yet again in Jan. 2022. This issue is still ongoing and I've learned yet another software fix came in April 2022. Issue #2 - Open recall for CVT Chain guide breakage dated Dec 15, 2021. Over six months and no fix. Transmission is getting worse and poses a potential safety issue.
Since we have owned the car since Feb 2020, we have had many dead batteries and the Subaru dealership 100+ miles away has replaced our battery at least 4 times. We live in rural Wyoming and need a reliable car for driving in the winter months when it can get below zero. We have jumped the battery numerous times but sometime the electronics don't work correctly like cruise control, dash warnings, windows, airbags, etc. We are always taking a chance driving it the 100+ miles from our residence to the nearest Subaru dealership in Ogden, UT. Even after driving it over 100 miles the battery will not charge up because it is damaged and we have to get a new battery from the Subaru dealership. We are averaging about 12,000 miles yearly travel; however, sometimes the car is not driven at all for a few days. If we don't drive the car at least every other day, we will have a dead battery. We are afraid one of the cars numerous safety systems won't work after jumping the battery and driving the car. The date 09/29/2021 was the last time we had the battery replaced. We disconnect the battery now so the car doesn't drain the battery. Other dates were 03/17/2021, 06/21/2021, 07/23/2021, and 09/29/2021.
That main concern I have is the windshield. My windshield has been replaced once already and it seems no matter what speed or road we are traveling if anything hits the windshield it cracks. I am not talking a chip or little crack either I am talking tiny rock 45 mph crack halfway through the entire windshield. It can’t be that safe of safety glass if a pea gravel smashes it at 45mph. First time it happened we were traveling through a blizzard at 30 mph rock crack the entire windshield….. the Subaru windshield is super expensive and can only be put in at specific places.
Infotainment system went into a continuous boot loop where screen went blank then subaru bootup screen appeared, then menu started to load then process repeated. During this process the Eyesight driver assistance system would produce an error saying all of it's functions were disabled while the infotainment system was rebooting. Also the display in center of the dashboard that shows vehicle info was randomly showing scrambled text while the infotainment system rebooted. This has happened multiple times, appears to happen when the vehicle has been on for several hours and is warm so it is hard to reproduce.
Head unit shuts off while driving with no warning, and no clear cause. All safety features shut off including Eyesight and rear brake assist (shows as off in instrumental panel). It has happened multiple times in the past several months ( at least seven times) Head unit then appears to restart while underway, as if I had just entered and started the vehicle. Contacted dealer who said “the radio sometimes shuts off”. I explained that it was the entire head unit and safety features. It was simply left with them saying they have know of it happening, but no action or follow up was recommended. Time of incident is an estimate. Electronics seem to be slow to start when vehicle is first started. Was not able to get photos while driving.
The car randomly breaks when it’s in motion in reverse. This has happened multiple times.
The EyeSight system will randomly not load at times and need to be reset for Rear Automatic Braking and other EyeSight safety features to become available. This usually only occurs within 30 seconds of engine startup but always occurs when plugging in a phone with Android Auto (a phone with Apple Car Play has never been used for verification). Warning message is displayed on driver's side message center stating EyeSight, RAB, and other safety features are not available. Reproduction of problem is difficult as it seems random.
Purchased the vehicle new and from the beginning the passenger side blind spot detection has been inconsistent in alerting for vehicles in or approaching the blind spot. Had it checked when new and on 11/2/21 and the dealer reported it was operating according to specifications and no fault codes were shown. The dealer did not test drive the car. In a recent test of about 100 miles, about 20% of the time the BSD FAILED TO EITHER DETECT, or detected too late, a vehicle that was being passed or one approaching from behind on the passenger side. Remarkably it seems to fail more often when passing a semi. It caused a near miss at night when it was difficult to see through the deeply tinted windows and when the BSD failed to recognize a vehicle squarely in the blind spot as I tried to merge into the right lane. An internet search found at least one post which matches the experiences I have had. The driver's side BSD works fine.
My 2020 Outback Touring has had several issues including the infotainment system rebooting and turning off all safety features: ABS, Forward Collision Warning, EyeSight, Adaptive Cruise Control randomly turning off (not just adjusting speed), I lose control of ALL electronics including the digital speedometer. A new infotainment system had been installed and the problems STILL exist. The date below was the most serious as I was on the highway traveling at high speeds when the system decided to fail and the screens went black. Subaru of America has been informed of these issues but there is no resolution.
The Automatic Emergency Braking System engaged while driving at 20 MPH in my community's private roads. After it came to a screeching halt, I had to put the car in Park and then in Drive so I could proceed the half mile to my house. If this had happened while driving @ 70 MPH on I 95, I AM CONFIDENT THERE WOULD HAVE BEEN AN ACCIDENT. I am now afraid to drive my car. I wonder if and when it is going to happen again unexpectedly. Very dangerous situation.
I heard a pebble tap the windshield and I immediately saw a crack from the passenger side to the middle of the windshield. I just had the windshield replaced on 6 Aug 2021. It costs $600 just to calibrate the cameras. Then the cost of replacing the windshield. This isn't right. I've had plenty of vehicles and this is the worst windshield I have seen. The windshield didn't last 1600 miles. And this is the first time I have been back on the interstate since getting the windshield replaced in August. I am not happy and I think this is a safety hazard.
Windshield cracked causing a problem with "Front Eyesight Collision" Right side does not see Large Vehicles in Right Lane. Left side works fine.
Without warning or repeatable cause the "infotainment" system will reboot causing the Bluetooth, LKAS, forward watching camera, emergency braking, and RAB to also stop working and reboot. This problem has occurred numerous times over the past several months. It happens without any predictability and I have not been able to find a common factor that triggers it. In May it happened once on a 4 hour drive west, but on the return trip it happened 4 times in a 2 hour window. The problem did not occur again until the first week of June and happened multiple times over a 3 day period. The software for the car has been recalled and reinstalled twice and the problem still occurs without warning or explanation. I have reported the issue in mid-August to Subaru's customer service and was told "a software update" was 2 weeks away. I do not believe this report from their customer service because no other documentation was provided other than a call back. I followed-up with a call back and an email to Subaru asking for more details for which I have not gotten an answer. The incidence of it happening on Aug 20, 2021 occurred as I was entering into traffic from Baggage Road to Hwy 220 South in Rockingham County, NC. The system rebooted as I was entering traffic and created a distraction at a crucial moment I was crossing 4 lanes to turn left to proceed south on Hwy 220. Presently the system's issues seem to be limited to a reboot of Bluetooth, radio and all safety related systems. If the system had triggered a shutdown of the car or if the safety systems had caused the car to stop I would have been in the middle of a US Highway with traffic approaching from both directions at 60+mph. I am disappointed by Subaru for not addressing this issue with a formal company statement and promises of an update have not materialized.
When passing semi’s on highway they are not detected by the blind spot detection (the light on the mirror does not turn on). It does not pick up the semi even when I am only halfway passed the semi. The blind spot detection does work when passing cars, motorcycles, and other vehicles on the highway. I reported this issue to the dealer (CleoBay Subaru, Killeen,TX). They tested the vehicle and told me they did not experience any issues. I immediately left the dealership and went out on the highway and still experienced the same issue. I believe this is a significant safety issue. Thank you for you time
While driving the car the car's computer/radio/navigation system will randomly shut down. This has been occurring since approx 6500 miles. When this occurs all of the safety systems/HVAC/Rear Camera/Radio/Navigation systems all will fail with the associated warning lights. The car now has approx 9000 miles, this appears to be random occurrences about every 200-250 miles. Dealer states that they are aware of the problem and was told to contact back late June/early July that SOA was going to release a software fix. Well time has passed and nothing has occurred. When driving this car and the failure occurs all of the safety systems are totally inoperable thus the computerized safety systems are not functional. So, far I have been able to maintain full control of the car. The time for the systems to comeback online is highly variable and sometimes I have to stop, and turn the car off for approximately 10 minutes to have the systems return to being functional. For example, the automated cruise control if in operation will fail to operate, the backup camera will be inoperable, the side space warning will fail, lane assist will fail, and so on for all of the safety systems that this particular car has will all fail. Fortunately, I have been able to safely find a safe place to stop, but what happens when this failure occurs and there is not a place to stop/pull over to rest the car/computer. I can't be the only owner/driver that is having this problem(s) they are all interrelated when the master computer shuts down all of the other systems then follow. It is only a matter of time that a potential crash with associated injury and or loss of life can potentially occur. Dealer is unable to replicate and therefore unable to repair/replace parts. Once this failure can be rectified/corrected this is a wonderful car. At this point, I am unable to determine the cause nor am I able to prevent these failures.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2020 Subaru Outback?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history