2017 Subaru Forester Electrical System

Odometer Fraud. The contact purchased a 2017 Subaru Forester. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 88,000, and at the time of registration, it was discovered that the mileage was 88,223.

Suddenly ignition starts having an issue where driver cannot pull out ignition key, which creates risky situations. If an emergency and unable to remove keys, then the driver is stuck. Apparently, this has been happening to Subaru's from 2014-2018 all over the country, and clearly defective design. Here is the TSB [XXX] Subaru should do a recall to prevent dangerous cases of drivers unable to pull their keys out, or having drivers "hack" the car, which remove important safety features. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I have a 2017 Subaru Forester 2.5i touring that seems to be plagued by a parasitic battery drain issue. I bought the car used in 2019 and successfully moved from Seattle to the Boston area in it shortly after the purchase with no issues. The dead batteries started during the pandemic, when the car was sitting undriven for extended periods of time. I’ve had the battery replaced multiple times, most recently in January of this year with a Diehard (3 yr warranty), and yet, once again, the car is dead and I had to call AAA yet again today. I'm at my wits end and cannot afford to continually purchase new batteries over and over again. My online research has produced dozens and dozens of stories about Subaru knowing about this parasitic drain and not admitting wrongdoing. I even found a class action lawsuit. Some folks online have reported having a mechanic who was able to diagnose which component was causing their drain … not always the same component all of the time, however. Most recently, I read it was the DCM causing the issue. At any rate, I don’t have the technical expertise to mitigate this, so I’m looking for a mechanic who can successfully diagnose where my particular parasitic battery drain is coming from.

Malfunctioned component is Start / Stop switch. It is a safety Issue since not able to remove the key after stopping and parking the car. This creates issues when we need to get out of the car quickly. This issue can be reproduced. There was no warning or message.

Key repeatedly gets stuck in ignition. Similar problem to other model years. Vehicle needs to be restarted and put in park several times to be able to remove key. Needing to start and move the car several times to remove the key puts pedestrians in the area at risk as visibility in parking spaces is often limited. It happens randomly, and is not regularly reproducible, but happens frequently. We have not yet had it serviced, and there are no warnings when it happens.

We're having to consistently jump-start a battery that is only 4 months old. The problem has been consistent over the years (currently on our 3rd battery in about 5 years) but appears to have worsened after a DCM update to the Starlink system. Dealership has assessed the problem as parasitic battery drain (while the car is turned off) from the telematic module, but refuses to correct the issue.

Battery fails often, does not hold a charge, consistently registers as low battery. Occurs several times in 2021, 2022, and 2023, Have had to replace battery twice in 2 years.

We took our 2017 Subaru Forester on December 9, 2022, to change the ignition switch because our key continued getting stuck. It was covered under an extended warranty. The spark plugs were changed during the same appointment only to satisfy the maintenance agreement. Before we took our Subaru in, our vehicle was running at an optimal level, and nothing was wrong with how it drove. On December 10, 2022, we drove our car, and it started to hesitate and misfire. This has never happened before. We called the dealership, and they had us bring the vehicle back in. They performed a fuel injection cleaning and reset the computer. Once again, the same problem continued after picking up our vehicle. The same problem continued daily, and several calls were made to the dealership and trips to the maintenance service department. It is erratic when it happens, but we have experienced it more during city driving versus highway driving. It’s been over a month, and the problem is still not resolved. At this point, we genuinely feel that this is a safety issue. Not to mention that if the vehicle continues to perform poorly, it can create additional damage. We are at a point of pure frustration and disappointment.

Battery drains if not driven approximately every 5 days. We have replaced battery three times. We’ve asked the local Subaru dealer a couple of times why the battery goes dead so quickly. Their response it’s a known issue. Not good that whenever we park the car or take it out of town we have to take a battery charger with us. This includes manually unlocking doors, climbing over back seat to get to the charger.

If you do not start the car everyday, the car drains the battery. Car must be jumped.nothing left on. It has a battery drain problem.

There appears to be a parasitic battery drain in the vehicle when it is stopped and all electrical systems are off (lights, heated seats, chargers etc) but the key is in the ignition. The most recent event was 7/20/2022 when the car was stopped for fueling and the key left in the ignition for no more than 10 minutes. Battery discharged sufficiently in that time that the car would not start requiring roadside assistance. Spoke with dealer who stated to keep the key 30 feet from the car (note, this is NOT a smart key car) and to ensure all is off as all computer electricals will continue to run even with the car off. Will be having a battery test next week but I see that this is a recurring issue for this make/model on this forum. The same problem happened in December 2021, although at that time the weather was also severely cold and the key was in the ignition (all electrical systems off) for approximately 45 minutes. The issue is one of personal safety and being stranded in a vehicle which cannot be moved (steering and transmission locked due to low/no power) as well as cost in time and money to investigate and remedy the issue. It is also an issue of functionality and usability. If I cannot leave the key in the ignition with the car off, I am unable to use any accessories or even my safety flashers in the event the situation would warrant it.

We have had issues with the battery draining since early on in owning the car. First the power windows stopped working and they replaced the battery. We are now having more battery issues and the care is in the shop.

Purchased July 2016. Battery has failed to start car several times requiring a jump-start. Battery has been replaced 4 times (09/'18, 01/'19, 06/'19 & 03/'20). Currently vehicle is in shop for extended attempt to find source(s) of "parasitic" drain. Dealer reported aware of problem with certain Subaru models. A class action lawsuit has been initiated. Computer updates have over the years have not helped. This problem has the potential of stranding us when on a trip.

Starting our 2017 Forrester has seemed sluggish recently, so we had the battery, starting system, and alternator checked. The starting system and alternator were in good working order. The battery's cold cranking amps (CCA) were below 400. The rated CCA for this battery is 525. It is less than 2 years old, but the check results indicated that it should be replaced. The check did reveal a "parasitic current drain" when the vehicle was turned off, which (most likely) has resulted in damage to the battery extensive enough to require replacement. To date, this has not left us stranded, but the potential for such an occurrence certainly exists. Further, there is a class action lawsuit concerning this issue currently making it's way through the court system. Originally, this lawsuit did not have any Forrester owners included. I plan to contact the law firm and be added.

Our battery continually dies if we don’t drive it for 2 days. At first we thought it was just the battery but it keeps doing it. Our mechanic tried to fix it but it still happens. We had to buy a portable jumper because it happens so much. I see this also happens to Outback’s and other Subarus.

2nd Battery in two years is dying while car is off. 1st battery did the same, and the dealership replaced it under warranty. There is a parasitic drain somewhere, that bleeds the battery while not in use. Every start is sluggish, and if a week goes by without driving the battery is totally dead. All user related electronic possibilities have been accounted for, i.e. cabin lights, trunk latch, etc

The battery is constantly dying and the car needs to be jumped often. The battery has been replaced and the connections have been cleaned multiple times. The battery can still be completely drained even if it is started every day.

I have had to replace my Subaru Forester battery at least 4 times since I have owned it. The battery dies within a few days of replacing and I am forced to jumpstart the vehicle every time I want to drive. This has been happening since the day I bought the vehicle...

I filed a NHTSA report on 7/19/2021 about having to replace my 2017 Subaru Forester's battery for the 3rd time in a 4 year old vehicle. I now am submitting another Complaint as now that #3 battery (all installed by Subaru Dealers) has FAILED, with #3 battery only 10 months old with approximately 6,000 miles driven with that battery. At about 8 months after the new battery install (battery #3), I brought vehicle to Subaru saying problem with battery (told it was "good") to only have it FAIL approx. 6 weeks later. While at Dealership I telephoned Subaru Customer Care indicating that the statistical probability of 4 batteries FAIL in a 2017 vehicle (purchased NEW), is indicative of something WRONG WITH THE CAR. I'm exhausted of being told this happens to batteries. No, it doesn't. I bought a Subaru for reliability, but this battery failure rate is unacceptable. #FixTheBatteryProblemSubaru

My 2017 Subaru Forester has had its battery replaced twice. There is obviously either a problem with Subaru batteries, or there is something inherent in the electrical system of the vehicle that drains the battery. For a senior citizen, a dead battery when travelling is not only an inconvenience, but could be a major problem, especially in the winter months. I understand there is a class action lawsuit against Subaru for battery problems. I just want to add one more log to the fire.

Battery dies often

Excessive battery drain/replacement. I have had to replace the car's battery five times since purchasing the vehicle new in 2017. The newest replacement battery has lasted 3 months. The vehicle was brought to Subaru dealership at least on two occasions to evaluate/diagnose the problem and Subaru was unable to detect any problem with the electrical system/battery.

2 new battery drains dead just sitting in the driveway.

The battery had died multiple times and we replaced it only to continue to have the problem. Dealer service says that we must be leaving the lights on or that we need to run the car more to recharge the battery. Being stranded in upstate NY with a dead battery in winter is a safety problem.

New battery and multiple replacement batteries fail to keep the electrical system charged when the vehicle is turned off. intermittent problem that happens unexpectedly, causing the consumer to be stranded and incur costs for alternate transportation, new battery, and roadside assistance. Multiple class action suits against the company are ongoing.