2018 Subaru Crosstrek electrical problems

Filed Jul 7, 2026 · Electrical, Engine · CO

On 06/26/26, while traveling at highway speeds, the vehicle suffered a sudden, catastrophic loss of motive power in active traffic due to a blown out/melted Cylinder 4 ignition coil. This unexpected engine failure forced raw fuel into the exhaust system, causing an immediate internal thermal meltdown of the catalytic converter, rendering the vehicle entirely undriveable and creating a severe highway safety hazard. This vehicle was previously serviced under the federal safety agency Campaign 21V264000 (Subaru Recall WRE-21), which was intended to permanently remedy an ECM software defect that over-energizes and melts the ignition coils. Subaru of America (Case # 260630-2101598) is denying coverage, claiming that because the recall was executed 90,000 miles/5 years ago, and because the current software Calibration ID (CID) matches their post-recall database, the thermal melting is standard "wear and tear." I am filing this complaint because a safety recall remedy must be permanent and effective. The physical evidence, a melted plastic coil housing with a hole blown through it, is an engineering impossibility under normal wear and tear and proves that the original software patch failed to permanently mitigate the high-voltage overloading defect. Over a 5-year period of gradual thermal degradation, the defect reoccurred, creating the exact highway hazard the recall was mandated to prevent. I request a federal investigation into the long-term efficacy and failure rates of the WRE-21 software reflash.

Filed Mar 20, 2026 · Electrical · NY

3/3!2026 while driving heat stop working. Called Milea Saburu spoke to Christian made an appointment for 3/5/2026 they had nothing sooner. Told her what happened. Brought in they gave me loaner 12 days later on 3/18/2026 pick up car. Paid bill they told me everything done no problems. I would get my 250 dollars for the car back in 30 days. Even though they said it was a hold it went through. I live 15 minutes from home. I got in the car heat was blasting turned it off and waited turned it on it worked. Pick up time 4 pm. Drove home parked next day 3/19/2026 turned on car made a tapping nouse after five minutes went away call dealer left message on Andrew manager answering service. Car parked at work 8 15 am to 3 40 pm. Drove home got home at 3 50 am turned off heat heart rushing water like down a creak. Turned off car looked in the front some liquid gushing out car smelled like it was burning. Put paper under car with rock to see color of fluid it was blue new it was coolant call dealer againt went to voice mail manager Andrew hung up went to dealer. Arrived at 4 40 pm Chris service Advisor check said was not save to drive burning smell still there got another loaner another 200 dollar on top of the 250. Called saburu customer advocacy this morning spoke to Latoya 11 15 am 3/20/2026 case number XXX-XXX waiting for someone to call me by Tuesday. I requested a 3 year gold plus warranty as a goodwill gesture to restore my confidence in the vehicle and protect my engine integrity. I am deeply concerned that the gushing coolent damaged the internal engines seals or may have been compromised due to the heat, the hoses or gadgets now or over time. I have puctures and documents that the system won't allow download. If the car continues to have reoccurring issues due to this complete repair failure. I am asking them to replace my 2018 saburu crosstrex that has only 52, 315 miles with an equal value car without issues. My car is 10 years old low mileage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION AC

Filed Nov 4, 2025 · Electrical · KY

All four tire pressure monitoring sensors failed on my 2018 Subaru Crosstrek at approximately 69,000 miles. The TPMS light remains illuminated, and the system no longer provides low-tire-pressure warnings. Subaru of America acknowledged the issue but declined full repair coverage, offering only partial “Goodwill assistance.” Because TPMS is a federally mandated safety system, a full-system failure poses the risk of operating the vehicle without tire-pressure warning capability. The dealership quoted approximately $1,000 to restore the system. Subaru’s decision to deny full coverage leaves the safety defect uncorrected.

Filed Jun 22, 2025 · Electrical · FL

factory alarm is triggered late in the evening while in my garage regardless if vehicle is locked or unlocked

Filed Mar 27, 2024 · Electrical · CA

Hello, My subaru crosstrek 2018 has been brought to Subaru service departments in both CA and MA for the same issue. I have brought in my car 3-4 times for recurrent problems where the battery in the car dies. The battery has been replaced multiple times and I have brought it to Subaru Service departments both in Massachusetts and California, all of whom tell me that the battery needs to be replaced, over and over again. I called and filed a report with Subaru of America who directed me to a third party representative who deals with claims regarding subarus and their recurrent battery issues and was informed that my subaru is not eligible for reimbursement for recurrent issues with batterys, nor is it a model that is eligible for an extended warranty given the battery issues. This is a huge safety issue for me. I have found myself in empty parking garages at night with a dead battery where I have had to stay locked in my car while I call a tow/AAA service to come and jump my car. I have missed countless days of work due to this issue. I have been late to pick up my child from daycare. I have spent thousands of dollars missing work, getting ubers while my car is in the shop, using rental cars, calling tow companies while this issue has been ongoing for two years. In addition, I have spent hundreds of dollars on portable battery chargers so that I do not get stranded with a battery-less car. I have raised this issue to the Subaru service departments multiple times, as well as Subaru of America with no solution.

Filed Jan 30, 2024 · Electrical · MA

I noticed that my 2018 Subaru Crosstrek battery keeps draining when the car sits for several days (something that typically has not happened in the past until my son recently went off to college). I called AAA and they checked out the battery and indicated that the battery was good still, but was borderline. Would likely need to be replaced soon. Since it was the original battery and it would need to be replaced soon - I had them replace it. Even after the battery replacement - the battery drains when the car sits for a few days. I took the car in to my local Subaru dealer and they indicated parasitic drain from DCM is depleting the battery. They tried performing a factory reset on the DCM, but it was unsuccessful. The dealer quoted me $1200 to replace the DCM and had to order it. I also noticed several class-action lawsuits for other Subaru models (which sound like the same issue). I called Subaru Customer Advocacy to inform them of the situation and currently awaiting a response.

Filed Nov 12, 2023 · Electrical · FL

Purchased NEW car 2018 and ALWAYS serviced at dealership. No problems until January 2022, radio issues. Dealer replaced radio - ever since then, the battery of the car keeps dying. The radio was replaced at least 3 times. Approximately Jan 21, 2023, I had to pay to replace the battery because service department said it needed to be replaced. Jan 23rd, the car was dead in my garage - they replaced the battery. On Jan 27th, car was dead again in the garage. Dealer had car towed and they kept until Jan 31st, when they had a “specialist” from Tampa look at the problem - another battery. Oct 3 again dead in the garage. Even the TEO KEYFOBS has to be replaced as they were drained of power. There obviously is an ELECTRICAL PROBLEM somewhere in the engine and we are afraid that the car might stop running WHILE I AM DRIVING IT, or AIR BAGS DEPLOY or maybe an ENGINE FIRE. THERE IS A SERIOUS ELECTRICAL ISSUE WITH THE VEHICLE. I reported it to Subaru Corporation and their executive said to “just keep bringing it in when the battery has died”! How does that resolve the electrical POTENTIALLY UNSAFE ISSUE? As of today, 11/12, in the evening you can see on the radio screen a type of “glow” or “backlight” coming from the screen WITH THE RADIO TURNED COMPLETELY OFF. We are seniors who are not afraid to drive this car because of potential safety issues or being “stranded” somewhere if it is not operational. I contacted Subaru Corporation and all they will do is issue a “goodwill” credit of $1,500 toward a new car. We are retired and on a fixed income and thought this would be our forever car and even purchased the extended warranty to avoid any future expenses that we could not afford. It would be an unbudgeted expense to pay for another vehicle.

Filed Oct 20, 2023 · Electrical · OH

Was told I needed a new ecm due to corrupt learning. My vehicles check engine light, traction control light, and cruise control all turned on/ stopped working. My vehicle has received all necessary maintenance in a timely manner, no missed oil changes and no accidents. The dealership stated it was due to damage but this can’t be possible since the only place service has been completed was at the dealership, if it was damaged it would have been caused by the dealership. I have seen multiple threads online stating the same issue with their vehicle same model and similar years and the cost to replace is not cheap.

Filed Aug 18, 2023 · Electrical · NY

Premature starter failure as noted in TSB 07-198-21 due to failed clutch in starter motor. Only had 35, 750 miles. Defective starter. Issue known to Subaru. Could leave drivers stranded and at risk. This known/ common starter motor failure problem should be a recall.

Filed May 2, 2023 · Electrical · CO

the horn quit working, everything else on my steering wheel and steering column work just not the horn, no way to warn approaching traffic, safety issue, puts myself and family in harms way.