2017 Subaru Outback Engine Problems

On Monday [XXX] were driving on [XXX] going north up [XXX]. I was doing about 60-65 mph in traffic which was flowing in both directions. While ascending the pass, the car suddenly started to misfire, rapidly lost power, power steering failed and all dash lights lit up. With no shoulder to pull out this was a very scary experience. Eventually managed to limp to a spot where I could pull out off the pavement. Car was dead. Popping the hood showed significant battery corrosion. I had a toolkit with me. The voltmeter measured the battery voltage at 9.3V. Thinking maybe cleaning the battery terminals would allow the car to be restarted, I managed to get the cables off and cleaned everything with a wire brush. But still no power. After a while a state trooper passed by and hung on while I contacted a towing service. After another 1.5 hours, the tow truck arrived and towed the car the 60 miles or so to the dealership in Denver with my wife and I in the cab of the tow truck. Dealer repair invoice indicated Data Control Module (DCM) "causing excessive draw on electrical system." More significantly, the battery had drained below the the operating threshold voltage required for vehicle drivability (understood to be 10-10.5V). There was no mention of this by the dealer service adviser. Although dealer diagnostic was carried out, no computer codes were provided. Vehicle mileage at time of incident 73,456. I have owned the car since new and have all service records. Car was repaired and picked up from dealership on 06/10/26 with a replacement DCM. Battery was charged up but not replaced and left in corroded state. Battery will probably have been weakened by such a total discharge with reduced life expectancy. I have uploaded the dealer repair invoice. I have reported this incident to Subaru of America. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11745736

Incident

Jun 8, 2026

Total of 3 incidents when my car had approx 1/8 to 1/4 of a tank of gas....as going up incline on interstate....car like stalls and slows down, will not speed up....get it over to the side to avoid being hit and it finally starts going again...close call with vehicles behind us in the passing lane. Below listed the last time it happened... Did not use to do this...first time was same area listed below in November 2025.

NHTSA ID

11724776

Incident

Mar 2, 2026

I been hearing a loud humming sound like a sports car and smell of fumes inside the cabin.

NHTSA ID

11696612

Incident

Aug 16, 2025

Car was being driven on the highway in cruise control, when the cruise control turned off and the car began to decelerate. When the gas pedal was pressed, the RPMs shot up but there was no acceleration. The car was pulled over, turned off, and we were not able to turn it on again. The car was towed to a shop, where they were able to identify the engine wasn’t working but not the root cause, and also mentioned the possibility of there being a transmission problem. We then brought it to a Subaru dealer, and they said a similar thing without being able to diagnose anything more specific. This car is 8 years old and has had routine, consistent maintenance the entire time. The surprise of an engine failure with no warning is very alarming and dangerous.

NHTSA ID

11671491

Incident

Jun 14, 2025

Hi I had my car into the local Subaru Dealership (Wheeling Subaru) a few weeks ago to investigate a couple of issues that the car has been having for years (and they have never been able to find). Over the course of that investigation, they finally were able to recreate two issues that should have been covered under the warranty since it's been happening and reported to them for years (the seat memory programming button isn't working and the right sight steering wheel controller isn't working). The parts and labor for those two issues come to $545. But the much bigger issue is that they told me the engine needs to be pulled out and resealed because of cam carrier and spark plug gasket leaks, and that repair is $5,076 plus tax. When I expressed astonishment over this and asked what is going on, the service advisor explained this is a common problem with Subaru cars from this model year because of the switch from timing belts to whatever it has now. with the CVT engine I looked around online and discovered that this is a common issue with 2017 Outbacks. I thought I was making an investment that would last when I bought a brand new Subaru rather than a Ford, Honda, Toyota, Hyundai, etc because Subaru was supposed to be a car that did not have poor quality manufacturing issues like this. Given that this appears to be a common issue with the way this model and year car was manufactured, I am very upset that Subaru is not fixing this under recall but is expecting me to pay $5076 (before tax) to have what was explained to me as a manufacturing defect repaired. Since I've seen a lot of reports for other Subaru owners of this issue, I was advised to file a report with you to investigate. Thank you so much for investigating. Sincerely, [XXX]   INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11649831

Incident

Feb 27, 2025

PER SUBARUS BULLETIN 02-192-25 POSED ON 10-26-2024 THEY PROVIDED DETAILS ON HOW TO FIX A LEAK FROM ZONE 4 FOR CAM SHAFT CARRIER AND VALVE COVER. I HAVE A LEAK FROM THESE TWO ITEMS NOTED. I HAVE BEEN BREATHING THE OIL FUMES FOR WHO KNOWS HOW LONG. I HAVE HAD THESE ISSUES CONFIRMED BY BOTH SUBARU DEALERSHIP SERVICE CENTER AND AN INDEPENDENT SERVICE CENTER. NO ENGINE LIGHTS HAVE BEEN DISPLAYED OR CAME ON TO INDICATE ANY OF THESES ISSUES. THE ODOR OF STRONG OIL JUST GOT WORSE OVER TIME AND MY VEHICLE ONLY HAS 87000 ORIGINAL MILES ON IT AND HAS PROPER DOCUMENTED OIL CHANGE AND SERVICE EVERY 3000 MILES.

NHTSA ID

11647781

Incident

Jan 1, 2025

I drive 2.5miles to work, Tuesday [XXX], I was turning into the parking lot and my car just cut off. I couldn't use flashers, restart it, put it in park or anything else. I called my husband to come help. I thought maybe the battery cable might have come loose. It was dead. I couldn't get out, if I let my foot off the brake it would roll backwards, going into the road and I didn't want it to hurt anyone. It started smoking from the drivers front side of engine. I called my husband back and said please hurry. It took approximately 7 minutes for him to arrive. I was on the phone about the smoke when he drove up behind me. He told me to get out of the car it's on fire. He tapped my bumper to keep my car from rolling backwards. I jumped out, called 911.He had sandbags in the back of his truck. He put them under the back tires so it couldn't roll into the traffic. A lady stopped that had a fire extinguisher and [XXX] attempted to put the fire out. It was getting quite large. We couldn't open the hood, he could only spray it in the wheel area up front. He had to get back the fire was getting big. The car then exploded. It was so loud, fire and smoke. I went into work and asked to be let off for that day. I smelled like smoke and my lungs hurt. I inhaled so much smoke. My daughter got me a breathing treatment setup to help with breathing. The fire department came and put the fire out. They were so kind. No police showed up, so we only have a fire department report. The tow truck showed up and took my car away. When we got home we notified our insurance agent. :engine failed, if I had been on a busy street I would have been hit. The car just stopped where it was. Yes our insurance adjuster said it could be looked at by anyone. :Yes my safety and the ones around me were put at risk. My lungs are still suffering. :no it's not been reproduced by anyone I know of. :no, there was no indications that pointed at something being wrong. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATI

NHTSA ID

11634973

Incident

Jan 7, 2025

After the car is shifted into park and the key is turned it does not shut off. The key remains stuck in the ingition.

NHTSA ID

11591978

Incident

May 30, 2024

Throttle fails to respond for a brief but serious amount of time. When pulling into traffic, instead of accelerating the engine remains at an idle and the car moves forward slowly. I push on the throttle trying to make it go. Then it takes hold and the car leaps forward. Safety: Normal power is delayed as the car moves into traffic. Oncoming traffic must slow to prevent an accident. The dealer where I purchased the car, Santa Monica, CA, tried to find error codes. Also removed the throttle valve to check that it wasn't somehow stuck. They drove the car briefly. They say they've done all they can. No warning lamps, messages, codes stored in the computer. Note that the throttle pedal signals the computer to work the engine throttle valve (so I'm told). Problem occurs about once a month. First time was when I took posession at the dealer's. I requested to recind my purchase but, because I didn't by the cancellation option ($250), they refused.

NHTSA ID

11591819

Incident

Dec 19, 2019

My Subaru Outback developed a strong smell of exhaust in the cabin last year. We finally had a chance to get it fixed in January, and it turned out the catalytic converter manifold had rusted through. The car is not that old, and is driven primarily in central North Carolina where road salt is not a major concern. An internet search reveals many other drivers with the same issue - metal corrosion at the "accordion" part of the exhaust pipe. I have no idea how much engine exhaust my family and I were exposed to, but it was significant enough to cause headaches and exhaustion.

NHTSA ID

11575585

Incident

Jan 1, 2024

Vehicle lost engine power twice while on the road between 8/12/23 and ~9/25/23. Took to Subaru Santa Monica service on 9/26, left it overnight, and was unable to replicate the problem. I cleaned the K&N drop in filter after 8/12 incident since I haven't cleaned it in a while. Subaru Santa Monica service said that there's oil contamination from the filter into throttle body and I need cleaning and new air box. I don't think that's the problem and this is a major safety issue. Although I have a 7 year warranty that's still active, I paid $219 for diagnostic. Not covered under warranty because can't replicate issue. My plan is to sell this car as it's a personal and public safety danger. Don't have time to keep going to the dealer and paying out of pocket.

NHTSA ID

11547716

Incident

Sep 25, 2023

There is a known cam carrier leak issue for this engine, and no safety recall has been issued. The motor oil leaks down to the hot exhaust creating smokes and may cause a fire.

NHTSA ID

11537958

Incident

Jul 5, 2023

Bought this car after having oil consumption issues with another outback Bought from another dealer that wasn't care for properly. Within 6 months of have this new one from an actual subaru dealership started to have oil consumption issues as well. Have gone through many of their "test" and pass. But within 2200 miles of 5k on an oil change I'm down over a qt. My mechanic has gone over the car and no leaks and states it is burning oil at a high rate. Paperwork from subarus test states as have their techs stated they put 6.1 qts in. The manual and my mechanic both state and put in 5.1qts. I have to put at least 1 qt in between oil changes and have to always have oil in the car so I don't get caught without oil to put in. I do know there is a lawsuit for this issue on 2016 models. My car was also placed on the road 12/2016. I've tried to have the owner of the dealership to deal with the issue of either fix it or buy back and haven't heard anything and can't get a response to text, call, or emails.

NHTSA ID

11527813

Incident

Sep 1, 2021

2017 SUBARU OUTBACK. CONSUMER WRITES IN REGARD TO ENGINE STALLING WHILE DRIVING.

NHTSA ID

11512324

Incident

Mar 17, 2023

The 2017 Subaru Outback has been slowly leaking oil and it has been determined that the cam carrier seal is defective and needs to be replaced. The vehicle has 70k miles on it and it has been brought to my attention that this a common problem among this vehicle. The service costs and replacement are very high and the car isn’t that old to be experiencing this problem yet. If it’s a common problem with Subaru then the part should be recalled and replaced at the companies expense. The vehicles warranty has expired at 60k miles and i never got an extended. Please advise.

NHTSA ID

11510664

Incident

Feb 6, 2023

The contact owns a 2017 Subaru Outback. The contact stated while driving at various speeds, the vehicle lost motive power and stalled without warning. After restarting the vehicle, the vehicle operated as designed. The contact stated that the failure had occurred on several occasions. The vehicle was taken to the local dealer would was unable to retrieve a diagnostic code. No failure was found. The manufacturer was notified of the failure and advised that the vehicle be taken to a different dealer. The failure mileage was 25,000.

NHTSA ID

11508525

Incident

Nov 1, 2022

Mileage

25,000 mi

Despite a replacement and multiple visits from AAA, the battery in our 2017 Subaru Outback dies constantly and leaves us stranded. Mechanics insist the batteries (both the original and the replacement) are fine and there must be a greater issue with the car itself. We drive regularly, run the engine in the driveway otherwise, and still continue to wake up and find the car dead.

NHTSA ID

11496169

Incident

Dec 4, 2022

I purchased a used 2017 Subaru Outback in December 2020 from a friend whose mother had owned the car before her death in Nov. 2019. That owner purchased it used from dealer in Sevierville TN in 2019 and had to replace a battery at least once according to records. The battery has failed three times since Dec. 2020, totally drained and would not recharge so a replacement was needed. I replaced the first battery then took it to dealer for other two replacements. The previous owner had a garage under her mountain house. She was found dead in her den chair. After her burial the family later found the 2017 Subaru Outback parked in her garage underneath the house was totally empty of gas. I believe from reading issues other Subaru owners have had that this car did not turn off and this lady died from carbon monoxcide poisoning. This is an issue well documented over many years and it is way past due for a recall by the manufacturer. Since it continues even to 2020 models there should at least be a stop production order until this issue is corrected. It is not just an inconvenience but a very real danger for owners who park in a home garage. As the government agency trusted to oversight of manufacturing defects presenting a danger to the safety of the public it is way past time for you to act.

NHTSA ID

11491260

Incident

Oct 25, 2022

I have been stranded repeatedly by my subaru since it was purchased with drained batteries, no explanation from subaru. Safety issues arise from the stranding. There is a lawsuit now with subaru but they are not acutally fixing the cars? No warnings were given and I now have a unreliable vehicle with no proposed fix from the manufacturer.

NHTSA ID

11487170

Incident

Jul 10, 2018

I arrived at my destination. I turned the ignition OFF. The engine turned OFF. I opened the driver's door and the engine turned ON. I did not turn the ignition ON. I again turned the ignition OFF. This time the engine remained OFF.

NHTSA ID

11480372

Incident

Aug 18, 2022

The contact owns a 2017 Subaru Outback. The contact stated that the windshield cracked on the upper driver’s side windshield and extended to the center of the windshield. There was no impact to the windshield to cause the crack. The contact had not informed a dealer of the failure. The windshield had not been replaced. The manufacturer was not made aware of the failure. The approximate failure mileage was 76,062.

NHTSA ID

11464000

Incident

May 8, 2022

Mileage

76,062 mi

I drove my Outback for 10 minutes. I stopped to run an errand that took 30 minutes. I then tried to start the car and it wouldn't start. All the lights on the dash turned on. I then tried several more times. It still would not start. Then I waited several minutes and it started. I drove it home. I have since tried to start it several times and it has started. The car has slightly less than 20K miles on it. This has never happened before. It was a very hot day - nearly 100 degrees and I was quite panicky that it would not start. I was worried I would be stranded. There was never any indication before that something like this might happen. I am going to call the dealership tomorrow.

NHTSA ID

11427374

Incident

Aug 1, 2021

I BELIEVE ALL OF THE FOLLOWING CIRCUMSTANCES TO BE CAUSED BY AN ELECTRICAL PROBLEM: DEC.31, 2020: CAR HESITATES TO START. IT NEVER TURNS OVER SO IT DOES NOT EVER START. WE INSTALL NEW BATTERY & CAR STARTS. MID-JAN.2021: CAR WON'T START FROM PUSH START, BUT DOES START WHEN I USE MY REMOTE START KEY FOB. AFTER THAT, CAR STARTS WITH PUSH START. FEB.-APRIL 2021: CAR HAS A SEVERAL TIMES WHEN IT HESTITATES TO START, BUT ULTIMATELY IT DOES START. MAY 1-3 2021: CAR HESITATES TO START, BUT ULTIMATELY STARTS. MAY 4-5 2021: CAR NOT ONLY HESITATES TO START, BUT NOW I HAVE ALL KINDS OF LIGHTS LIT UP ON MY DASH, INCLUDING CHECK ENGINE, EYESIGHT, X-MODE LIGHT IS FLASHING, AND SEVERAL OTHERS THAT I CANNOT GET TO TURN OFF. IN ALL INSTANCES, VEHICLE WAS STATIONARY AND TURNED OFF. I HAVE PHOTOS & VIDEO BUT CAN'T SEEM TO REDUCE FILE SIZE TO REQUIRED 5MB. SIDE NOTE: UNLESS I AM AT WORK OR RUNNING ERRANDS, MY CAR IS ALWAYS IN THE GARAGE.

NHTSA ID

11415232

Incident

Dec 31, 2020

Mileage

52,000 mi

IN 2018 THE BATTERY KEPT DYING AND HAD GO BE REPLACED. NOW, IN 2012, THE SAME THING IS HAPPENING AGAIN. IT HAD TO BE JUMPED OFF YESTERDAY MORNING, AGAIN THIS MORNING AND NOW THIS EVENING IS DEAD AGAIN. THE CAR ONLY HAS A VERY LITTLE OVER 32,000 ACTUAL MILES ON IT. THE VEHICLE IS KEOPT IN THE GARAGE ALL THE TIME AND THIS IS WHERE IT IS AS IT IS DYING.

NHTSA ID

11414752

Incident

May 1, 2021

Mileage

32,000 mi

TL* THE CONTACT OWNS A 2017 SUBARU OUTBACK. THE CONTACT STATED THAT THE VEHICLE FAILED TO START MULTIPLE TIMES WITHOUT WARNING. THE CONTACT PURCHASED A BATTERY CHARGER TO CHARGE THE BATTERY. THE CONTACT MENTIONED THAT WHILE THE VEHICLE WAS TURNED OFF, THERE WAS AN ABNORMAL SOUND COMING FROM THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE FAILURE RECURRED 3 ADDITIONAL TIMES. NEIL HUFFMAN AUTOMOTIVE GROUP (1220 VERSAILLES RD, FRANKFORT, KY 40601, (502) 695-7500) WAS CONTACTED AND INFORMED OF THE FAILURE. THE DEALER RECOMMENDED THAT THE VEHICLE BE TAKEN IN TO BE DIAGNOSED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 24,000.

NHTSA ID

11413046

Incident

Jan 11, 2021

Mileage

24,000 mi