2020 SUBARU FORESTER Electrical System Problems

Repeated experiences of battery going dead after simply opening and closing doors a few times a day for four days. Engine was not started in this time. All interior light were off and rear hatch remained closed. Safety risk is being stranded in rural locations, at times with no cell service. Local Subaru dealer indicated I needed an authorization code from a battery lawsuit settlement to look into it. Lawsuit doesn’t include my vehicle VIN and only reimburses cost for battery replacement and possibly towing, not a repair. Research into the problem has indicated that this “parasitic drain “ can be remedied by replacing the defective older PRG Module with the effective newer one. This should be covered by the warranty on a two year old car. Local dealer would only refer to the lawsuit for direction. Suspect they are “buying time” until warranty expires to avoid doing the appropriate...

In less than 2 years of owning this car the battery failed putting me in a very dangerous situation. While standing in the middle of the road to make a turn into incoming traffic the car was off because of the auto stop-start system. As I released the brake and tried to accelerate to cross the intersection the car failed to restart automatically and stalled as if the battery did not have enough power. I had to place the car in parking and restart it again in the middle of the road. This happened multiple times. I took the car to the dealer and it was confirmed that the battery was bad and it was replaced. The new battery was good for sometime but lately it feels that it lacks power again, specially to restart when off from the auto start-stop system. This problem is very concerning as it can...

Battery will not hold a charge. Battery frequently needs to be recharged. Bought a portable jumper, to ensure vehicle will start away from home where the battery would otherwise be charged in the garage.

I've owned this car for less than a week and already have to replace a battery that was said to be completely fine. It does not retain charge or replenish when parked.

2nd event - SOY based transmission wiring chewed. TWICE in two years. Car garaged, traps in garage. Our cost: about $1500. Time in shop - 3 months, due to "no parts".

BATTERY DRAINS constantly and car will not start. This has happened several times the past month. I understand that it is an ongoing issue with other Subaru's. This is dangerous and must be fixed. This issue has happened 3 times in 2 weeks. 8/1, 8/13, 8/15/2022

There are various lights on on the dash of the vehicle when nothing is seemingly inherently wrong with the vehicle. I notified the dealership about this issue, the dealership claimed that special parts were ordered but I still have not been notifed of their arrival. This puts my safety at risk due to the fact that I am not sure wether the car actually has an issue, or if it is a mere malfunction. The vechicle is now shaking.

Battery drained, towed to dealership twice within a month battery replaced then failed within 2 weeks everything checked out ok but battery still drained very frustrating

The contact owns a 2020 Subaru Forester. The contact stated that the battery was continually being drained and needed to be recharged frequently. There were no warning lights illuminated. The vehicle was taken to the local dealer however, a cause for the failure was not determined. The dealer recharged the battery. The vehicle was not repaired. The contact related the failure with electrical system defects which consistently drained the battery. The contact recharged the battery after each time the vehicle was driven. The manufacturer was not notified of the failure. The approximate failure mileage was 2,000.

Battery constantly dying. Significant safety concern. Never no when the car is going to not start. Unreliable

Electrical defect in recent Subarus causes parasitic battery drain when the car is not in use. Our battery drained to the point that the vehicle couldn’t start without a jump due to this defect.

The battery drains regularly, causing the vehicle to be inoperable. Battery is dead after 3 days of non use, leaving vehicle unable to be used.

The contact owns a 2020 Subaru Forester. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to respond. The vehicle stalled and then went into sleep mode. The contact was able to restart the vehicle after several attempts. There were several unknown warning lights illuminated. The contact stated that the vehicle also experienced failures with the electrical system. The vehicle was taken to the local dealer where the contact was informed that the vehicle was operating as designed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 1,300.

At the time,time, car was not fully 2 years old.. its brand new.This is an addition to a post created a week ago. After the dealership offered to detail the interior of the car to solve the sulferic acid feeling I noticed that the flap above the driving wheel started to feel warm. This happened right in the morning in February. I'm not sure if I am feeling an electrical voltage, smelling the exhaust or there's still sulferic acid in the car. Every once in awhile I my hair smells like oil.. Whatever it is it makes your head feel heavy. My toddler feels something because during a drive he will say " hot". This puts our safety at risk if we are smelling the exhaust or feeling voltage while driving in the car. Sometimes it smells like fuel I the trunk of the car or acidic

Battery draining requiring multiple charging.

The battery died after less than two years. There is a class action lawsuit related to recent Subarus draining batteries very quickly due to parasitic power drain because of a faulty electrical system. The 2020 Forester was included in the initial lawsuit, but this model was thrown out of the lawsuit by the judge since none of the plaintiffs owned a Forester. However, it is a known issue. Prematurely and unexpectedly dead batteries, as I experienced, can cause motorists to be stranded and face related hazards, as well as to incur unexpected costs. I spent more than $200 to replace my battery long before the minimum expected three-year battery life.

I bought my new 2020 Forester in November 2019. It now has 1604 miles on it. Twice already I've had to have it towed to the dealership because the battery was dead from just sitting in my driveway. The first time, February 2021, they said it was a bad battery. The second time, January 2022, they said it's because I don't drive the car enough. Said I have to drive or idle the car for at least 15 minutes twice per week which is a waste of gas and time for something that shouldn't happen to start with! There are already lawsuits about this constant battery drain but the 2020 Forester isn't included and it should be! There is NO reason for the battery to constantly drain to the point that the car won't start when the car is sitting with everything turned off!

The contact owns a 2020 Subaru Forester. The contact stated that while driving at an undisclosed speed, the radio system malfunctioned, which caused the blind-spot detection system, headlights, and instrument panel to fail to operate as needed. Additionally, the eyesight system would inadvertently engage, which caused the vehicle to stop without warning. The contact restarted the vehicle to correct the failure. The vehicle was taken to the dealer, and AutoNation Subaru Scottsdale (15678 N Northsight Blvd, Scottsdale, AZ 85260) and diagnosed with radio software failure. The dealer replaced the radio on three separate occasions; however, the failure recurred. The dealer also reconnected the eyesight system and resolved the eyesight system failure. The manufacturer was made aware of the failure. The failure mileage was approximately 1,000.

Frequent battery dying problem in 2020 Subaru Forester from Grayson Subaru, Knoxville, TN I am a 67 year old woman who does much scientific research in remote places alone at night. During the day, I manage 3 farms 100 miles apart. I am constantly opening and closing gates, getting out briefly to check livestock and fix fences. If my keys are left in the ignition even briefly, as I get in an out for small tasks, the car battery is dead. Other times it is simply dead for no reason at all. In my over 50 years of driving all sorts of cars and trucks, I have never had this problem. I have had constant problems with this car battery dying in as little as 5 minutes after driving 50 miles. I have brought this problem to Grayson Subaru’s attention and spent hours waiting as they checked for problems. They...

Liftgate open for tailgating party. Battery drained despite NO lights being on at all. This should NOT happen. Left me (50yo woman) and 3 kids stranded in a very bad part of town.

I was in a parking lot at the time driving very slowly to pick a spot. When I went to turn right into the spot my car accelerated at an alarming speed. I had not control over it as it kept turning. It hit the car parked in front of my space pushing it and went on to hit the car parked to the right damaging both the front left and right sides of my vehicle and the 2 parked cars before coming to a stop. Fortunately it was 9am and not very crowded, there were no passengers in both vehicles and no one walking in between or by the cars which could have been tragic. I was wearing a seatbelt. The police were called and completed a report. The Subaru dealership was called and Subaru of America was called. The car was inspected by a Bosch.-EAA representative for Subaru...

Purchased new on 5/22/2020. On Aug 8th after not driving the car for 3 days, attempted to start vehicle. Would not start. Battery dead. Charged battery with a jump. Drove car home. Next am. Car would not start. Battery dead. Currently trying to get car in for service. This is very dangerous stranding people randomly.

The battery on my 2020 Subaru Forester Premium /LFF14 drains within a week if not driven. There appears to be a parasitic battery drain problem. The car will not start. I replaced the original factory battery with a larger, after-market battery having been told by several sources that this problem is common to Foresters and is caused by defective batteries being supplied to Subaru. However, the new battery did not solve the problem. I regularly test the battery with a battery tester that indicates that the battery is OK, but is discharged and requires charging. I now keep a trickle charger on the car continuously. This seems to keep the battery charge up to 98%. I have retained the original battery which holds a charge indefinitely out of the vehicle. I am aware that driving the car to recharge the battery is extremely hard on the alternator and will cause...

My car shut down while stopped at a traffic light. Several dashboard lights flashed or lit up, including the battery indicator, the EyeSight indicator said it was turned off, and many others I don’t know. It felt as if the battery had died. The car was in standby mode while stopped and the air conditioning was running. The car stalled and died when I took my foot off the brake to drive. The battery has died 6 times in the past year. If the door was ajar, the hatch left open, or the engine turned off while parked in drive, the battery was dead the next day. If it’s left overnight with the emergency flashers on, the battery is dead the next day. This is too many for a brand new car. I’ve already bought a brand new battery after the first one died. What do I have to do...

I tried to unlock my car but the remote didnt work- I had to use the blank key inside the remote to get in the car. I couldn't start the car- my husband tried to jump it- that did not work- I called AAA they tried jumping it - that didnt work-- AAA told me the battery was good but totally out of charge 0%-- I called the subaru salesman I bought the car from & he walked me thru alot of steps & we couldn't find anything wrong besides the battery!! he told me to have my husband try to give me a jump again & after 4 hours the car turned over! What caused it????? no idea??? the next day (7/5/21) I took it to an auto parts store & they tested it out- alternator-perfect--- battery @ 550 with the max 620--- today I read an article about...

Battery is completely drained and I was unable to commute. Vehicle picked by Subaru roadside assistance to nearest dealer (Victor Subaru)

What component or system failed or malfunctioned, and is it available for inspection upon request? - The original battery on our 2020 Subaru Forester died after some repairs related to getting rear ended. The battery died for the first time in March 2021, 8 months after we purchased the car with around 5500 miles on it. That battery was replaced with a brand new Subaru battery. The battery has died 3 times since being replaced. The current battery is available for inspection. In addition to the battery dying, we have recently noticed two situations where the rear hatch has not properly latched. I have a video of the rear hatch trying to latch and popping back open over and over again. I've only noticed this twice, but the first time I noticed this I realize we had been driving with the rear hatch open and our dog could have been...

purchased new vehicle 10/23/19, 1st battery failure 6/15/2 jumped and ok 2nd battery failure 12/4/20 jumped, Subaru replaced battery 3rd battery failure 2/16/21, Subaru said battery was "fine" 4th battery failure 3/31/21 Subaru replaced battery 5th battery failure 5/14/21, appt with Subaru on 5/21/21

BATTERY WAS DRAINED FOR NO REASON AND CAR WOULD NOT START. WHEN TRIED TO START DASH LIGHTS ETC., WENT CRAZY. GAUGE FOR TACHOMETER AND SPEED WHIPPED FROM SIDE TO SIDE, LIGHTS FLASHED ON AND OFF. THE STARTER GAVE THE CLICKING NOISE YOU HEAR WHEN BATTERY IS DEAD. CALLED AAA TO JUMP AND THEY COULD NOT GET IT TO START. I CHARGED BATTERY OVERNIGHT AND THE ENGINE STARTED. TOOK CAR TO DEALER THEY COULD FIND NOTHING WRONG WITH THE BATTERY OR CHARGING SYSTEM. THEY COULD NOT EXPLAIN WHY THIS HAPPENED. I PURCHASED A BATTERY TENDER TO MAINTAIN CHARGE IN BATTERY. I ONLY HAVE 1 CAR AND IT NEEDS TO START WHEN I NEED IT. THIS HAPPENED ON DAY I NEEDED TO TAKE WIFE FOR COVID VACCINE SHOT.

WHEN ATTEMPTING TO LEAVE OUR HOME DRIVEWAY ON FRIDAY, APRIL 2ND, 2021 (APPROXIMATELY 4PM LOCAL TIME), THE IGNITION BUTTON FAILED TO START THE CAR. INITIALLY, POWER WAS RUNNING TO THE DASH. I CALLED THE SUBARU EASTSIDE DEALERSHIP IN KIRKLAND, WA WHERE THE CAR WAS PURCHASED. THEY TOLD ME TO CALL ROADSIDE ASSISTANCE, WHICH I DID THE FOLLOWING MORNING. WHEN MY WIFE AND I MOVED OUR CAR SEAT AND BELONGINGS TO THE OTHER CAR IN THE DRIVEWAY, THE REAR LIFT GATE STARTED TO MALFUNCTION AND WOULD NOT OPEN (RESULTING IN A REPEATED 3 BEEP SOUND), BLOCKING ACCESS TO MY JUMPER CABLES, WHICH WERE IN THE TRUNK. EVENTUALLY, THE ELECTRICAL SYSTEM STOPPED RESPONDING ALL TOGETHER. WHEN ROADSIDE ASSISTANCE (SENT OUT BY SUBARU ROADSIDE) EVENTUALLY SHOWED UP THE FOLLOWING MORNING, A JUMP START BY THE TECHNICIAN STARTED THE VEHICLE.

MULTIPLE DEAD BATTERIES OVER PAST YEAR. WHEN REAR LIFT GATE IS LEFT OPEN FOR LESS THEN AN HOUR WITH ALL LIGHTS INCLUDING INTERIOR OFF IT DRAINS BATTERY. 2019 LIFT GATE MODULE RECALLED DUE TO 'DARK DRAW' BUT DIDN'T INCLUDE EARLIER 2020 MODELS WHICH DID NOT HAVE NEW MODULE INCORPORATED YET. PLEASE INVESTIGATE TO INCLUDE THE EARLY 2020 MODELS IN RECALL. THIS IS HAPPENING TO MANY PEOPLE AND IS A HAZARD TO BE LEFT STRANDED OVER SUCH AN EASY FIX THAT HAS ALREADY BEEN INCORPORATED IN THE 2019 MODELS WITH THE RECALL ... MY CAR IS IN THAT 'GREY AREA' ONLY CAUSE IT IS NOT A 2019 BUT BEFORE THE FIX WAS ADDRESSED ON THE 2020 YEAR.

I WAS DRIVING UP AN EMPTY SUBURBAN ROAD AT 25 MPH WHEN THE BRAKES SUDDENLY WENT OFF, CAUSING THE CAR TO SKID TO A STOP. THE DASHBOARD SCREEN SAID THE PRE-COLLISION EMERGENCY BRAKING SYSTEM WAS ACTIVATED. THERE WAS NOTHING IN THE ROAD AND NO REASON FOR THE CAR TO STOP SUDDENLY. THANK GOD I WASN'T ON THE HIGHWAY - THIS IS EXTREMELY DANGEROUS.

WENT TO START CAR AFTER BEING PARKED FOR 3 HOURS. DOORS OPENED WITH FOB BUT KEYLESS IGNITION WOULD NOT START CAR AND ALL IDIOT LIGHTS CAME ON LOCKING STEERING WHEEL, BRAKES, GAS PEDAL, ETC. SUBARU SERVICE CAME AND JUMPED CAR; NOT SURE IF FOB HAD DIED; CAR ONLY 11 MONTHS OLD, UNDER 9000 MILES. TEMPERATURE IN HIGH 20'S, LOW 30'S. KEYLESS IGNITION HAD BEEN WONKY EARLIER IN WEEK AND CAR HESITATED TO GET STARTED. EYESIGHT TURNED OFF BRIEFLY ON DRIVE HOME AFTER CAR WAS STARTED BY JUMPSTART.

VEHICLE HAS SOME ELECTRICAL ISSUE WITH THE TPMS THAT LESS THAN A YEAR IN, ONE OF THEM IS SEEMS TO BE GOING OUT. THEE HEAD UNIT (INFOTAINMENT SYS) ALSO HAD CONNECTION ISSUE THAT WAS AWARE AND KNOWN BY SUBURA DEALER REP WHEN CALLED AND AS TO BRING IN FOR MAINTENANCE. BLINDS POT MONITOR ON THE RIGHT HAS TENDENCY TO NOT FLASH OR ALERT EVERY SO OFTEN.

ONE DAY I LOOKED UP AT MY WINDSHIELD AND THERE IS A SCRATCH/CRACK VISIBLE ON THE INSIDE. NOTHING HIT IT.

WIRING HARNESS, TRANSMISSION, SOY BASED - DESTROYED BY RODENTS AT 600 MILES, 9 MONTHS. VEHICLE ON HOME DRIVE, DAYLIGHT, AS OUR BASEMENT WAS REPAIRED FROM FLOOD DAMAGE. 1 WEEK ON DRIVEWAY.

POWER LIFT GATE OPEN WHILE PARKED DURING ALL-DAY SPORTING EVENT (TOTAL OF 8 HOURS). NO OTHER DOORS OPEN, NO AUXILIARY USE OF BATTERY WAS IN USE, BATTERY WAS DEAD AND I WAS LEFT STRANDED IN PARKING LOT.

BATTERY DIED 3 TIMES AND THE CAR HAS LESS THAN 5000 MILES THE VEHICLE WAS IN MY DRIVEWAY AND USUALLY DRIVEN AT LEAST EVERY OTHER DAY ALSO, IT SEEMED LIKE IT JERKED FORWARD A FEW TIMES WHEN I STARTED IT. IT HAS A PUSH BUTTON START. *TR

A CHANGE IN SOME 2019-2020 SUBARU MODELS CAUSES AN INCOMPATIBILITY BETWEEN OBD-II DEVICES AND THE SUBARU STARLINK SYSTEM (WHICH IS USED TO DISPATCH EMERGENCY SERVICES IN THE EVENT OF AN ACCIDENT, AND FOR OTHER PURPOSES). SUBARU SERVICE BULLETIN 15-257-19 11/11/2019 RECOGNIZES THE PROBLEM, BUT DOES NOT OFFER A SOLUTION OTHER THAN TELL THE CUSTOMER NOT TO USE THE OBD-II DEVICE. SINCE THE STARLINK SYSTEM PRIOR TO MODEL YEAR 2019 WAS COMPATIBLE WITH OBD-II DEVICES, IT SEEMS LIKELY THAT A SUBARU INITIATED CHANGE IS CAUSING THIS INCOMPATIBILITY. AS STATED IN THE BULLETIN, IN ORDER TO AVOID HAVING THE CAR NOTIFY THE DEALER EVERY 3 DAYS OF THE PROBLEM, THEY HAVE CHANGED THE NOTIFICATIONS TO ONCE EVERY 10 DAYS. THIS IS NOT SOLVING THE PROBLEM, BUT MERELY PUSHING IT DOWN THE ROAD. SOME CONSIDER STARLINK A SAFETY SYSTEM, AND PAY EXTRA TO HAVE IT AVAILABLE. COPY OF SERVICE BULLETIN ATTACHED. THIS IS...

VEHICLE IGNITION IS OFF AND IN PARK. THE SAFETY ISSUE OCCURS WHEN THE REAR TAILGATE IS LEFT OPEN. AFTER 20 MINUTES OF LEAVING THE REAR TAILGATE OPEN, ALL THE INTERIOR LIGHTS TURN OFF CORRECTLY AS A PUBLISHED SAFETY FEATURE TO HELP PREVENT A DEAD BATTERY UPON DEPARTURE. THE USER THINKS EVERYTHING HAS SHUT OFF WHEN THE LIGHTS TURN OFF, HOWEVER, THE REAR TAILGATE ECU DOES NOT TURN OFF OR GO TO A LOW POWER STATE AFTER THE INITIAL 20 MINUTES CAUSING A HIGH DRAIN ON THE BATTERY. THE HATCH ECU CONTINUES TO DRAW IN EXCESS OF 4 AMPS WHILE THE HATCH IS LEFT OPEN, CAUSING A DEAD BATTERY IN AS LITTLE AS A FEW HOURS. THE USER CAN UNKNOWINGLY BE LEFT STRANDED WITH A DEAD BATTERY CAUSING A SAFETY ISSUE. THIS IS A SERIOUS OVERSIGHT AND ENGINEERING ERROR THAT WILL LIKELY LEAVE MANY PEOPLE UNKNOWINGLY STRANDED WITH A DEAD BATTERY.

WHEN DRIVING THE DRIVER HEATED SEAT PUTS OUT LOW HEAT EVEN IF THE SWITCH IS IN THE OFF POSITION. AT 15 MINUTES SITTING, HEAT CAN BE FELT ON THE BUTTOCKS SKIN AND CAUSED MINOR SKIN BURN AT AROUND 30 MINUTES.