Check a VIN

2018 Subaru Outback: won't start

31 of the 816 complaints about the 2018 Subaru Outback describe won't start.

owner complaints
31
of this car's complaints
4%
typical repair cost reported
$197
typical mileage
14,657
recalls
0
Is there a fix? 34 service bulletins cover this area of the car. See below

Won't start by model year

What owners say

Filed Sep 9, 2024 · Electrical · CT

In past 3 years after not being driven for 3 days the car would not start. We had the battery charged and replaced twice . When I spoke to another Subaru owner I was informed of a lawsuit against Subaru concerning parasitic battery draw by the Starlink system. I contacted Subaru of America and was told there was no recall but I am entitled to extended warranty on the T 16 DCM unit (a fuse for Starlink). They said I would be responsible for any charges to fix the issue. When I called my local Subaru dealer they said I may have to pay for diagnostics even if it was the DCM fuse as the problem. I feel Subaru knew about this problem and should fix it without charge.

Filed Jan 2, 2023 · Electrical · NY

In early September 2022, my friend, who owned a 2019 Subaru Outback, needed a AAA tow because the battery died. He told me that battery failure is a common problem with Subaru 2016 - 2020 Outbacks. I researched that assertion and found it well documented. Because my Outback was 4 years old and my family was planning a trip, I decided to replace the battery at my mechanic's shop (Sept. 14, 2022). On the night of December 29, 2022, upon exiting a restaurant with my wife, my car would not start. A patron of the restaurant came to my aid, and we jump started my car. My car ran for 30 minutes but would not start the next morning (December 30, 2022). I then jump started my car using my wife's car battery, and let the car run for an hour. It would not start immediately after shutting it off. My wife called Subaru, and the representative she spoke with gave her a case number to use at the Subaru dealership. The dealership gave me a January 2, 2023 appointment, and after jumping my car again, I brought it to the dealer. Later that day, by telephone, I was informed: 1- there is no fix for the problem in the 2018 Outback; 2- I was not due any compensation for the 3 month old dead battery because I did not purchase it at Subaru, and 3- that battery was barely holding a charge after a few hours on Subaru's charger. I was advised to go back to my mechanic to see if the battery is under warranty. It is, but that is not the issue. Whatever is causing the battery drain in the Outback will drain the next battery. I was lucky this time-- I was not stranded. But who knows the next time? Who knows how many people are paying for new batteries only to have them ruined by the Subaru electric system malfunction? Who knows what kind of dangerous predicaments this malfunction might cause? Subaru is aware of this widespread problem, yet they are unwilling to publicly recognize it and issue a recall. There is something unscrupulous about this situation.

Filed Aug 18, 2022 · Electrical · NC

Persistent battery drain. Car was jumped a week ago because it wouldn't start at all. It has been sluggish to start (turns over a couple times before catching) since and had a major error with the rear hatch today despite starting up. Power rear hatch will alarm as open but then cannot be opened with key fob, button in car, or button on hatch. The rear alarm will ring consistently until car has been running for 10 min/reached 60 mph but restarts again at stop lights. It is currently scheduled to be looked at in 4 days, if it is able to be safely driven to the dealership.

Filed Jul 11, 2022 · Electrical · NY

The battery loses its charge so that the car will not start if I don’t drive the car at least once or twice a week. The battery and electric system of the car was checked July 11, 2022 at the Bay Ridge Subaru dealership in Brooklyn, NY and all systems were found to be normal and good, including the battery. The battery is only 1 year old and is under a 30 month warranty. The Subaru service technician said that the car needs to be run for 45 minutes twice a week or this problem will keep happening and will lead to the battery needing replacement much sooner than normal. He also suggested I buy a portable battery jumper or a stronger bigger battery for $500-$750. So he acknowledged that this model has issues with the battery draining. He said the newer Subaru electrical system in Subaru Outbacks was first tested on this car model and year, and that was the cause of the problem, that they hadn’t figured out an efficient electrical system for the newer Subaru Outbacks by the time they started selling the 2018 Subaru Outback. The system is available to look at upon request. The problem was confirmed by the Subaru dealership service technician. The safety hazard is that I or my family might get stuck somewhere that is remote or dangerous due to weather or temperature with a car that won’t start. Or if I need to escape a bad situation quickly and my car won’t start. There were no warnings before the battery died. This has happened 3 times in the past two months. Today is July 11, 2022.

Filed Apr 28, 2022 · Electrical · CA

Over the last two-plus years I have found my 2018 Subaru Outback's battery dead or so low that it cannot crank the engine. I have had to replace the battery twice in that time, and have had AAA out at least four times to jump start the car without replacing the battery. Today, after sitting in my garage for about 10 days, the battery was so low that it would not crank over the engine. This is a truly unusual experience in my life. I have left cars at home or at the airport for several weeks while traveling, and had no problem starting the cars upon my return. My Subaru Outback completely drains the battery while parked with the engine off in as little as 7-10 days. It is as if some electrical system or circuit in the car is continuing to use battery power at the same rate as if the engine was running. I am fortunate that I have a 2nd car. If I did not, I would be screwed. Someone needs to look into this, identify the problem, and then require a fix.

Filed Mar 3, 2022 · Electrical · CA

During a photography trip of May 2021, in a very remote area, the Outback's rear gate was kept opened for my dog for a few hours. When it was time to leave, the battery wouldn't start. Luckily, I had a battery charger. There was nobody present to help in this area and no mobile phone service available. Later in the day, the battery died again, under the same circumstance. We were fortunate to have extra food, water, and blankets if needed to survive the night. I thought maybe the battery was old. I replaced the battery on May 24, 2021 with an Optima 25 battery. This is a better battery than what Subaru installs. This February 2022, we went camping in a remote area of Death Valley with no available services. The fairly new car battery wouldn't start. I used my emergency starter again. This time the rear door and side doors had been opened constantly due to camping activity. It was not possible to disable the lights so as not to drain the battery.

Filed Nov 19, 2021 · Electrical · OR

A week ago, drove 5 miles to get a hamburger. While the car was parked I listened to the radio. When my husband returned with our food 8 minutes later, the car would not start. The battery was dead. This happened again today (11/19/21) when we drove 4 miles and parked. I left the key in the ignition for barely 3 minutes before removing it, but the battery was dead when I tried to start it again a few minutes later. Both instances we used a portable battery charger after having the same problem happen during the summer. Today my husband took the car in to have the battery checked, but it is within normal range (12.2 volts). Aside from the battery problem, the oil lamp also comes on a lot…after getting a complete oil changed which should last us 6k miles or so, the oil warning light comes on after 1,500 or 2k miles, forcing us to add a quart of oil which we always have in the car now.

Filed Oct 29, 2021 · Electrical · WV

Battery died for no apparent reason. This left me stranded after dark in Baltimore City. I was able to get a jump start to get home but the car would not start even after the battery was placed on a charger. There are numerous internet news items describing similar stories. I contacted the dealer who refused to assist and therefore replaced the battery myself. There was no warning that this would happen.

Filed Jun 19, 2021 · Electrical, Engine · TX

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.

Filed May 16, 2021 · Electrical, Engine · 10,202 miles · SD

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

Filed May 9, 2021 · Electrical · 18,000 miles · OR

Purchased vehicle in new condition in 2018. From there on forward, I've experienced problems with the radio system not wanting to work. There was no sound output. We thought it had to do with the radio satellite itself, but overtime the real issue was uncovered. After only 6 months with a brand new battery, my vehicle would not start. I'd later learn the battery depleted prematurely, and all the dealer auto shop would recommend is buying a new battery. The radio worked just fine after each time I've purchased and replaced my car battery. Now having replaced the battery twice for $197 each time, I've learned this is only a band aid fix that would last 6-12 months. I have saved my receipts but did not attach those as they contain personal info.

Filed May 9, 2021 · Electrical · 14,657 miles · MI

Battery prematurely dead. No crank, no start.10-03-2020 parked in a lot. Jump started. Took to subaru dealer , technician inspected and found battery functioning as designed and passed load test. Extreme amount of corrosion on battery terminal removed. A few days later, did not start, more corrosion on battery terminal. Jump started. Technician informed driver to take on long drives to charge the battery. Vehicle with 14,600 miles. Long drives in excess of 20 minutes taken just to charge battery. A few days later battery left driver again stranded , jump started. New battery purchased for $178.04.

Questions about the 2018 Subaru Outback won't start

Is won't start a common problem on the 2018 Subaru Outback?

31 of 816 owner complaints about the 2018 Subaru Outback (4%) mention won't start. The model year with the most reports is 2017.

How much does it cost to fix won't start on the 2018 Subaru Outback?

Owners who mentioned a price put the repair at about $197 (median of 5 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.

Is there a recall or service bulletin for this on the 2018 Subaru Outback?

There are 0 recalls and 34 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2018 Subaru Outback

Windshield crack 217Battery drain 73Backup camera 60Screen failure 20Stalling 20Sudden acceleration 16Wipers 15Sunroof shattered 12Lane assist 11Jerking 10Pulling 10Fuel gauge 9Key fob 9Adaptive cruise 7No deployment 6Grinding brakes 6Collision warning 6Headlights 6Loss of power 6CVT failure 5Fuel pump 5Hesitation 5Power steering loss 5

All model years of the Subaru Outback

VIN decoder

See the problems and recalls for an exact car

Buying a used 2018 Subaru Outback?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history