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2021 Subaru Outback: won't start

15 of the 300 complaints about the 2021 Subaru Outback describe won't start.

owner complaints
15
of this car's complaints
5%
recalls
0
Is there a fix? 75 service bulletins cover this area of the car. See below

Won't start by model year

What owners say

Filed Sep 16, 2024 · Electrical · UT

Battery keeps draining if car isn't driven for a few days battery is drained to point of it being dead, cannot get into car, will not start, leaves you stranded. This is the fourth time this year, dealer checks it out tells me nothing is wrong. I have read many problems with parasitic battery drain with subaru's even that the alternator is programed not to fully charge the battery to save gas. getting tired of the issue to the point where I am thinking of selling the car and finding something that will not leave me stranded. This time when I checked the battery voltage it was 5.80 volts and .29 amps.

Filed Aug 12, 2024 · WA

2021 Subaru Outback Limited | ~13000 miles | Component: Battery | Car suddenly stopped and ALL warning lights started flashing at a busy traffic signal, while I was waiting to take a left turn (lucky to have escaped safely from that situation). I had to turn the car off and restart it. 2 days later, the car would not start at all. Tried jumping it multiple time in vain. Had to tow the car to the nearest Subaru service center. Technician ran a diagnostic and concluded that the battery was not holding any charge at all and it was deemed faulty. Reading many posts on reddit and other forums of many Subaru owners facing the same issue from older (2015) to newer models. Many of them also complained of Parasitic drain on the battery due to faulty DCM on Starlink. Note: there was no warning lights/messages or any other symptom before this. This was a Subaru certified pre-owned car that went through a 152 point inspection in 2023.

Filed Sep 19, 2023 · Electrical · SC

The 2021 Outback XT which we purchased new on April 15, 2021, would not start on September 15, 2023. My spouse had a medical appointment that morning. On September 18, 2023, the vehicle would not start again. My spouse had a medical appointment that morning as well. This same problem occurred several months earlier. On the morning of May16, 2023 I called the dealership's service department for a service appointment. This was the first such incident and caught me totally by surprise. Here is a direct quote from the Service's Manager's May 19, 2023 email. " The tester/charger determined that your battery was healthy, had a good state of charge and accepted a good rate of charge and also held the charge. The battery has no fault, the drain was the issue determining replacement of your battery was unnecessary and not warrantable." The dealership service department manager went on to state "it (battery)required 3 hours and 45 minutes of charging". Following the May 16, 2023 service appointment the vehicle performed as expected until the morning of September 15, 2023. On September 19, the vehicle was again taken to the dealership for servicing. During this visit, a "new battery" was installed by the service department because they determined the existing battery failed their test. The service rep stated the “new” battery will fix the problem. Also, the service rep stated, when asked, that the Electronic Control Module was updated but the Data Communications Module was not replaced. Additionally, the rep stated, when asked, the “new” battery did not carry the normal warranty because it was installed under the vehicle’s existing 3-year warranty which expires on April 15 2024. This limited battery warranty makes no sense. Since the May 16, 2023 incident, we experienced emotional tension every time we have driven the vehicle, dreading it would not start when we needed the vehicle the most. We are 70+ and believed that we were purchasing a safe vehicle.

Filed Jun 2, 2023 · Electrical · OK

Car would not start this morning. It’s driven every day, so it had not been sitting. Last service was 3/23 (today is 6/2/23), and the battery passed dealership inspection with no issues. Roadside serviceman stated this was the fourth “relatively new” Subaru he’d had to jump this week. Jumping the battery fixed the issue (for now), but the Subaru dealership, themselves, advised submitting a claim for potential “parasitic battery drain.” However, the current class action suit only covers 2015-2020 Subarus, and mine is a 2021 Outback.

Filed Sep 16, 2022 · Electrical · MN

Battery repeatedly drains with short drives or if car is parked for 72 hours such that the vehicle will not start.

Filed Jul 27, 2022 · Electrical · KY

Vehicle was about 1 year old and had about 2300 miles when I started having issues with the battery being dead and having to jump start the vehicle after it sat a few days. I contacted the dealership and the battery took it in. After about 4 hours they said the battery was "low" and they recharged it and said everything was fine. They said I didn't drive it enough so it was my fault the battery would not start the vehicle. That was 5/10/22. On 8/26/22 the battery was dead and I had to jump it again. There have been no warning lights.

Filed May 16, 2022 · Electrical · OH

vehicle about 14 months old, I purchased new Tried to start vehicle battery dead, no lights or other acc. had been left on. two weeks later battery would not start car, I jump started car according to directions in owners manual. After jump start several check engine lights came on, cruise control did not work. lane control and "EYESIGHT" failure warning light was on. Subaru dealer replaced battery under warranty

Filed Dec 20, 2021 · Electrical · VA

Car won't start. Battery drained after in garage overnight. The lights weren't left on and keys far from car. This same thing happened after leaving car with blinkers on for a very short period.

Filed Sep 9, 2021 · Electrical · NY

Bought a new 2021 Subaru Outback in July 2021. In the first 1600 miles of driving the battery has died three times. Twice I found it wouldn't start after having parked it for a few days and once it wouldn't start the next day after driving it (it was driven the previous day at 6pm and wouldn't start at 9am the next day). There seems to be something that drains the battery when the vehicle is off. One time it may have been my fault for leaving an interior light on, but how could an interior light drain the battery in just a few hours? I've had roadside assistance jump start the car each time it wouldn't start and each time the technician said anecdotally that Subaru Outbacks and Foresters were the most common car he is seeing get jumped. That last time it wouldn't start, I double checked to make sure I had not left any interior lights on and I had not. This is definitely an issue with the car - some system draining the battery.

Filed Sep 7, 2021 · Electrical · MO

I am having battery drainage issue with my vehicle. If it sets more than 4 days the car will not start. I see there is a class action law suit on Outback vehicles. This car has 9,000 miles on it and this has happened 3 times.

Filed Sep 3, 2021 · Electrical · VA

Battery drain and car won't start. Called roadside service for a Jumpstart and on 5 other occasions, even after driving for 1.5 hours, the car won't start. Sometimes after driving and turning car off for 1/2 hour to visit a store, it won't start. Othertimes it will. Car only has 6000 miles on it. I have had to buy a battery jump starter so I can at least get rolling again. I have a call into Subaru service but they could not get me in for over a week. So I have to deal with the possibility of being stranded until Subaru can diagnose. I live in the country so bring stranded will be a big deal. I should have bought the Volvo.

Filed Aug 31, 2021 · Electrical · CT

Drove car and parked for 15 minutes. When I tried to start it again it would not turn over. Battery was completely dead and could not be jump started. Car is a 2021 model with only 11K miles on it. There was no prior warning of a low battery. It left me stuck in an isolated parking lot. Probably not a major safety issue but apparently a known issue for late model Subaru Outback’s so I wanted to add the 2021 model to the affected list.

Questions about the 2021 Subaru Outback won't start

Is won't start a common problem on the 2021 Subaru Outback?

15 of 300 owner complaints about the 2021 Subaru Outback (5%) mention won't start. The model year with the most reports is 2017.

Is there a recall or service bulletin for this on the 2021 Subaru Outback?

There are 0 recalls and 75 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2021 Subaru Outback

Windshield crack 85Battery drain 21Adaptive cruise 16Screen failure 15Check engine light 10Lane assist 7Loss of power 7Stalling 7Collision warning 6Sudden acceleration 6Sunroof shattered 6Jerking 5Warning lights 5Wipers 5

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