Owner-reported complaints naming the engine system, filed with NHTSA
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Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2018 Subaru Outback submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 36 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 36, in the owner's own words
Engine cam carrier seals are leaking. Repair cost is $5,700 plus tax. Vehicle is well cared for and well maintained with only 96,000 miles The Subaru Manufacturer was contacted and will do nothing to fix and does not admit engineer defect nor manufacturing defect. Basically, 96,000 and needs a new engine. Please put out a national recall.
Acceleration was very sluggish and un-responsive Gears would strangely slip on the highway resulting in engine racing up Rotating sound would come and go
Arriving at my childhood home, I followed the driveway to the left to park in front of the garage door. With my foot on the brake and slowly rolling to a stop, the car suddenly accelerated and jolted forward making contact with the garage door and the frame of the garage. This caused damage to the house, garage door and the front of the car. Thankfully there was no other car in the way or a pedestrian! Only the house and car were damaged. This was sudden and there was no warning or prior occurrence to make me aware of the problem. We spoke to the dealer service manager and at first he said he never heard of anything like that. After further conversation he admitted that another car had a similar issue. They kept the car for two weeks and couldn't repeat the issue. We then went on line and found there are several class action lawsuits against Subaru for the same thing - unexpected and sudden forward acceleration! But when contacting Subaru corporate for assistance in resolving this, they claimed they never heard of any class action lawsuits or problems such as this. We need help dealing with Subaru. They are playing with us.
In heavy traffic, we were rolling slowly along, when all of a sudden the engine began revving on its own, against the brake. I quickly moved the shifter into neutral, and the engine revved wildly without my pressing on the accelerator. We couls have easily slammed into the car in front of us had I not moved the selector to neutral.
The cam tower seal on modern Subaru Outbacks fail at an incredibly high rate and the repair cost is typically higher than $3000. Subaru's standard warranty covers the repair up until 60,000 miles but a quick search on user forum's shows that this issues consistently pops up somewhere between 60 and 90 thousand miles.
Flex joint connecting to catalytic convertor. For 3+ years, exhaust from engine coming directly into cab, coughing, nausea, burning eyes/nose/lungs/chest. Foul odor, difficulty breathing. The problem has been reproduced and diagnosed by two independent mechanics. The dealer, when initially requested to inspect expeditiously, couldn't get me out the door fast enough. The component has only been inspected by two independent mechanics. There were no warnings. I would like to add that this specific part has already been subject to Subaru Program Bulletin WUB-87, WUJ-95, and is reported by mechanics as common defective part.
On 9/28/23 I was driving in a 2-lane construction zone with my daughter. While going through the construction zone, my car lost all power and just shut off completely. No warning signs just went completely dead. I almost got rear ended, thankfully the car behind me went to the left of the center, but almost had a head on collision into oncoming traffic. Thankfully, no wrecks were involved. It did eventually start back up and has yet to happen again. However, back in July/August of 2021, I received a recall notice on my vehicle NHTSA Campaign #21V587000. When I called to check on the recall it was stated that my vehicle did not have a current recall. I believe this is inaccurate to the fullest. When I bought the vehicle, I took my outback in several times to the dealership with what I thought was transmission and some electrical issues. They could find nothing wrong, how convenient for them, they weren't the ones almost killed because the vehicle would stall at intermittent times during acceleration. I took it in on 1/24/19, 4/26/19, 10/24/19, and 7/27/20. The mileage range was from 1K to 55K, now at 111K my car just has a complete system failure. Honestly, they didn't seem enough to care and treated me like I didn't know what I was talking about. I drove it 7 days a week and they drove it for 15 minutes and said there were no issues. That is not a fair assessment. I would like to resolve this matter before someone gets killed because of a defective issue on Subaru's part that was documented several times. I have the receipts and work orders to support the evidence. I have notified my family of the issues in case something does happen because of the vehicle, and I am, or others are injured or killed in an accident. Like I said, I have all the documentation to support any claim henceforth. I bought a Subaru because of its safety ratings. Now, I'm afraid to have passengers or my grandkids ride with me out of fear for their safety and others.
Vehicle had valve replacement after finding an oil leak in January 2023 at around 135,000 mi. August 2023, around 159,000 mi, mechanic found that valve needed to be replaced again as vehicle was leaking oil. System warning message came on to indicate low oil and upon checking, mechanic found that there was no oil on the dipstick. No dashboard light came on to indicate low/no oil at any point.
Burning oil in the engine drastically
I was driving at 40 MPH in the left lane approaching the left hand turn lane. Once I tturned into the turn lane my car started to accelerate very hard. I hit the brake and the car kept acelerating, I pushed the gear shift into neutral and with both feet hard on the brake I was able to stop completely without cutting into oncoming traffic. I have been driving over 50 years and never had an incident like this happen. I do not drive carelessly. However, now I am affraid to drive this Subaru Outback and I will not let my wife or family even ride in it.
Vehicle was parked with engine idling (waiting for passengers), engine accelerated to very high revs without any operator action. Driver shutdown engine. Driver checked to be sure nothing could have hit the accelerator, nothing found. Restarted the vehicle, could not reproduce the problem. About 2 miles down the road a RED exclamation symbol appeared on dash panel and shut off after 5 to 10 seconds.
The battery has drained twice in the time that I have owned this vehicle. Once I was able to recharge the battery by jumpstarting and letting it run. The second time it required a battery replacement. This was approximately 12 months after the first incident. The electrical system also has unpredictable quirks related to the window functions and lighting. I am uncertain to other resulting irregularities that may be occurring under the hood. Currently, my car is being serviced for a radiator fan and motor replacement for the cooling system. The estimate for repair is $1747 + tax. This is potentially related to the electrical quirks related to the battery irregularities.
Normal vehicle start. While leaving shopping mall parking lot, vehicle suddenly shut down; no electrical, no accelerator, no power steering, no engine. Was able to steer vehicle to safe location out of traffic path. Waited approximately 10 minutes, tried vehicle again, and it started / drove normally. Vehicle inspected afterward by dealer, who found no issues, and returned vehicle with no repairs made. Driver is 86 year old widow, who is terrified of being stranded in an unreliable car.
2018 SUBARU OUTBACK. CONSUMER WRITES IN REGARD TO ENGINE FAILURE. THE CONSUMER STATED THE VEHICLE HAD VARIOUS SAFETY DEFECT ISSUES INCLUDING A RECALL FOR LOW FUEL PROGRAMMING, LOW GRINDING NOISE AND VIBRATION IN THE BRAKES, AND VIBRATION IN THE STEERING WHEEL. THE VEHICLE ALSO HAD VARIOUS ELECTRONIC ISSUES INCLUDING GLITCHES WITH THE INFOTAINMENT SYSTEM, STEREO WOULD FREEZE, SPEAKERS WERE OUT OF SYNC AND RATTLED, SEAT HEATING TEMPERATURE TOO LOW, AND THE PASSENGER SIDE POWER WINDOWS DID NOT OPERATE PROPERLY.
While driving our 2018 Subaru Outback 3.6 the engine quit about 15 miles into our trip while driving at about 45 MPH. It had done this once before where after drifting to a stop and putting it in park it restarted and we finished the trip. This time we drifted to a stop and put it in park and tried to restart the engine. It restarted and immediately quit. We did this several times over a 20 minute time frame. We had it towed to the dealer where it took about 3 hours for them to look at it. It restarted and the fault codes showed it had stalled, but no other problem and no fix to be made. I see this problem in several forums with no fix offered. This is a significant safety issue since braking and steering power are lost.
The batteries cannot seem to hold a charge. We have called AAA several times, but the recharging doesn't last, and they say this is a problem with the Outback. In addition, the Subaru dealer has replaced the battery twice. It just failed again. This most recent battery fail stranded my 70 year old husband in another city. I have contacted the dealer again asking for service. There is no warning whatsoever that the battery has drained. This is not a safe situation. The date below is the most recent incident of a drained battery.
WHILE BEGINNING A LEFT TURN WITH ARROW, THE MOTOR DIED AND THE VEHICLE STOPPED. I PUT THE TRANSMISSION IN NEUTRAL AND ATTEMPTED TO RESTART WITHOUT SUCSESS. I THEN PLACED THE TRANSMISSION IN PARK IN THE DRIVING LANE WITH MOVING TRAFFIC, ATTEMPTED TO RESTART,THIS ATTEMPT WAS SUCESSFULL.IPROCEEDED HOME WITHOUT FURTHER TROUBLE. THE NEXT DAY I LOOKED ON LINE AND READ OF THE FUEL PUMP ISSUE. THE SYMPTOMS SEEMED THE SAME AS I HAD EXPERIENCED. I THEN INQUIRED AT THE SUBARU DEALERSHIP AND GAVE THEM MY VIN # AND THEY INFORMED ME THAT OUR VEHICLE WAS NOT PART OF THE RECALL.PLEASE HELP
I had pulled into our garage and had come to a stop. With my foot on the brake, I was reaching for the ignition button to turn the car off when the car suddenly accelerated forward and struck our large metal tool box, pushing it through the rear wall of the garage. The vehicle has not been inspected by anyone. No warning lamps or messages appeared.
To: Subaru Motors Consumer Reports NHtSA I, Richard McNitt, am the very unhappy owner of a 2018 Subaru Outback (4 cylinder “Touring” model with 33,900 miles), VIN 4S4 BSATCT J3362742. Primarily on the basis of “glowing” Consumer Reports Reviews I chose this model….sad to say this was an unfortunate choice. I list some of the troubles endured: • Shortly after delivery the “radio-GPS” failed, replacement was in short supply(!), Did without several weeks and the re-installation had a glitch. •We were informed that the radio would always “come on” when the car was started, My wife finds this very annoying, •We find the road noise to be excessive, especially at around 25 mph, •We were left sitting twice with a “dead” battery, once at the end of a two hour trip when the radio was on after for less than 15 minutes. ••But the worst situation was this…..My daughter, granddaughter, and I were 500 miles into a 600 hundred mile trip to a North Carolina Beach when we exited the Interstate at Laurenburg NC at about 3PM on a very hot day. At the first intersection stop sign when the accelerator was pushed at first nothing happened…that is the car did not accelerate, then abruptly the car lurched forward. Alarmed we drove it around a large parking parking lot, stopping, then trying to start again..we found the hesitating, then lurching forward to continue, so we changed drivers with the same result. As it was now late on a Saturday afternoon in this small town with no local garages open, we had the car “Roll-Backed” to the nearest Subaru Dealer in Fayetteville, NC and as there were no local car rentals available, we had a family member drive 108 miles (each way) to get us and take us to the beach. The Fayetteville Subaru Dealer called on Monday morning and said “they could find nothing wrong”, and to pick up the car (another 100+ miles each way). Needless to say, I was very nervous the whole way home from the beach ..but the trip was without incident.
The battery completely dies after at-least 3 days of not driving the vehicle. Within a few weeks of driving the car off the lot in 2017 (new from the dealership), the car would not start after not being driven over the weekend. I had the car jump started. It happened again the next week after a long weekend of not driving the vehicle. I had it jump started the drove it to the dealership. I was told there was nothing wrong with the vehicle or the batter. It happened again the next weekend and I had to get it jump started again. Since then I have not left the car un-driven for more than a couple of days. On June 18, I took the car for an oil change and was told i needed a new battery. I replaced the car battery that same day. Hooked everything up and the car started just fine. I check all interior lights and headlights to make sure they were all off. The next day, I go to start the car and my battery is completely drained. There is an issue with the car where it is draining the battery. I don't know if replacing the battery caused some kind of software reset, but now i'm having issues with a full brand new battery being drained overnight.
AUTOMOBILE WOULD NOT START IGNITION ON LIGHTS FLICKERED BATTERY WAS ON THE VERGE OF DYING HAD TO JUMP START IT TO GET GOING IN THE MORNING OF COURSE IT WAS STATIONARY IN THE GARAGE IN A VERY TOUGH LOCATION
DURING FISH-TAILING ON A SLICK ROAD THE ENGINE ACCELERATED WITHOUT PUSHING ON THE GAS PEDAL.
BATTERY DIES PREMATURELY, IF VEHICLE IS NOT DRIVEN FOR A FEW DAYS, OR IF PARKED AND REAR HATCH IS OPENED AND CLOSED A FEW TIMES. DEAD BATTERY LEFT ME STRANDED FIVE TIMES SINCE 3/5/2019. BATTERY TESTED WELL AT DEALERSHIP THREE TIMES, SO WAS NOT REPLACED UNDER WARRANTY UNTIL IT FAILED A DRAW TEST.
SINCE THE CAR HAS BEEN BRAND NEW, A HALF GALLON OF COOLANT HAS NEEDED TO BE ADDED TO THE CAR ON A MONTHLY BASIS. NO LEAKS HAVE BEEN DETECTED. THERE HAS ALWAYS BEEN A VERY STRONG ODOR OF BURNING COOLANT. DEALER STATES THIS IS NORMAL FOR THE 2.5L ENGINE, SO THERE IS NOTHING TO REPAIR, JUST KEEP AN EYE ON THE COOLANT LEVEL. I FILED A COMPLAINT WITH SUBARU OF NORTH AMERICA, AND RECEIVED A SIMILAR RESPONSE. BOTH THE DEALER AND SUBARU STATE IT IS UNKNOWN HOW TO REPAIR THIS ISSUE AS THEY CAN NOT IDENTIFY THE PROBLEM CAUSING THE LOSS OF COOLANT. DEALER JUST KEEPS TOPPING OFF THE SYSTEM, AND STATING THAT THEY STILL HAVE NO SOLUTION.
DIVING 55 MPH ON HIGHWAY WHEN CAR STARTED TO HARD SHUDDER, LOSE ACCELERATION. ENGINE LIGHT AND ALL OTHER WARNING LIGHTS CAME ON. DIFFICULT TO STEER AND BRAKE. ABLE TO BARELY PULL OFF ROAD SAFELY AND AVOID GUARD RAIL. NO PREVIOUS PROBLEMS NOTED.
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.
Categories with enough reports to have a page of their own
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