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What is the Subaru battery problem?


Subaru vehicles are known for their reliability and performance, but like any car brand, they are not without their quirks. One issue that has been reported by Subaru owners is a recurring problem with battery performance and longevity. In this article, we’ll dive into the details of the Subaru battery problem, its potential causes, and what you can do to address it.


What Is the Subaru Battery Problem?


The Subaru battery problem refers to complaints from owners about their car batteries draining prematurely or failing to hold a charge. This issue has been reported across various Subaru models, including the Outback, Forester, and Crosstrek. In some cases, owners have experienced battery failure within just a year or two of purchasing a new vehicle, which is far below the expected lifespan of a car battery.


Possible Causes of the Battery Issue


There are several potential reasons why Subaru vehicles may experience battery problems. These include:



  • Parasitic Drain: Some Subaru models have been reported to have electrical systems that draw power even when the vehicle is turned off. This parasitic drain can slowly deplete the battery over time.

  • Undersized Batteries: In some cases, the factory-installed batteries in Subaru vehicles may not have sufficient capacity to handle the demands of modern electrical systems, especially in colder climates.

  • Software Issues: Certain Subaru models may have software glitches that prevent systems like the infotainment or lighting from shutting down properly, leading to unnecessary battery drain.

  • Frequent Short Trips: If the vehicle is primarily used for short trips, the alternator may not have enough time to fully recharge the battery, leading to gradual depletion.


How to Address the Subaru Battery Problem


If you’re experiencing battery issues with your Subaru, there are steps you can take to mitigate the problem:



  • Check for Recalls or Service Bulletins: Subaru has issued technical service bulletins (TSBs) for certain models to address battery-related issues. Contact your local Subaru dealership to see if your vehicle is eligible for a software update or battery replacement.

  • Upgrade Your Battery: Consider replacing the factory-installed battery with a higher-capacity aftermarket option that can better handle the electrical demands of your vehicle.

  • Inspect for Parasitic Drain: Have a professional mechanic perform a parasitic drain test to identify any components that may be drawing power unnecessarily.

  • Drive Longer Distances: If possible, incorporate longer drives into your routine to allow the alternator to fully recharge the battery.

  • Invest in a Battery Tender: For vehicles that are not driven frequently, a battery tender or trickle charger can help maintain the battery’s charge when the car is parked for extended periods.


Conclusion


While the Subaru battery problem can be frustrating, it is not insurmountable. By understanding the potential causes and taking proactive steps to address the issue, you can ensure that your Subaru remains reliable and ready to hit the road. If you’re unsure about how to proceed, don’t hesitate to reach out to a trusted auto repair shop like Kevin’s Autos for expert advice and assistance.


Frequently Asked Questions

Why does my car battery keep dying when I don't drive it?


Your battery has a parasitic drain
A parasitic drain can occur when there's a short in the electrical system or when too many electronics and car accessories are connected to the car. Even if the car is turned off, there may be a constant drain on the battery.



Will Subaru replace my battery for free?


During the 30-month Authorized Genuine Subaru Replacement Battery Warranty period, or the balance of the Basic New Vehicle Limited Warranty period, coverage includes reimbursement for testing and replacement labor costs provided the battery was installed by an authorized Subaru retailer.



What Subaru models are failed?


Subaru Impreza: 2012-2014 Models
The Subaru Impreza has a strong reputation overall. However, the 2012 to 2014 model years saw some notable issues. These models were subject to excessive oil consumption due to faulty piston rings. As a result of these faulty rings, there may be engine failures if not addressed.



Will Subaru replace battery?


If you schedule Express Service for battery issues, a mechanic can service your battery, replace your battery, or perform a battery health test. The benefits of Express Service include convenient 24/7 online scheduling, appointment times on Saturdays, after-hours key drop-offs, and Subaru Valet service.



Which Subaru models are being recalled?


Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles.



Do subarus have battery problems?


Torque News covered the Subaru drained battery lawsuit one year ago when the news first broke. The class-action lawsuit alleges 2016-2020 Subaru Outback and 2019-2020 Subaru Ascent SUVs have electrical problems causing the battery to drain.



What is the Subaru electrical system recall?


In late 2022, Subaru of America, Inc. issued a voluntary recall on certain model-year Subaru Ascent SUVs due to a fire risk involving the vehicle's electrical system.



What is draining my car battery when it's off?


Unplug Extra Accessories: Known as parasitic draw, your car battery can drain from stereo components and phone chargers that continue to work when the car is turned off. Also, be on the lookout for glove-box lights, trunk lights, and interior lights that remain illuminated.



How do I stop my battery from draining when off?


Choose settings that use less battery

  1. Let your screen turn off sooner.
  2. Reduce screen brightness.
  3. Set the brightness to change automatically.
  4. Turn off keyboard sounds or vibrations.
  5. Restrict apps with high battery use.
  6. Turn on Adaptive Battery.
  7. Delete unused accounts.
  8. Turn on Dark theme.



How much does a new Subaru battery cost?


between $200 and $300
A Subaru car battery will cost between $200 and $300. However, this can vary depending on the model and year of your car. Talk to your mycar mechanic about the battery most suitable for your model of car and driving needs.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.