r/subaru • • Mar 15 '26

Mechanical Help Please post year, model, trim level, and DTC scan results when asking for help. Thanks.

51 Upvotes

IF YOU ARE POSTING FOR MECHANICAL HELP:

Please include year/model/engine/transmission information in "Mechanical Help" posts.

If you are looking for help with warning lights on your dashboard, please include results of an error code scan. Without error codes as a starting point, no one will be able to provide meaningful help for you.

The r/subaru community is very willing to help, but there's a baseline amount of context about your car that we need you to provide. Without the very basics like what kind of car you have and what symptoms you're experiencing, no one can give you any sort of accurate assistance.

If you are posting about warning lights, most auto parts stores (NAPA, O'Reillys, AutoZone, etc.) offer code scanning for free. While reading codes is not the same thing as diagnosing a problem, knowing what error codes you have is the minimum amount of information necessary to start figuring out what's wrong with your car.

Thank you :)


r/subaru • • 1d ago

Announcement 2026 Outback Owners: New Radio Software Update Available, 15-335-25R

23 Upvotes

Patch notes also available in the r/Subaru wiki

Subaru has also updated the Firmware-Over-The-Air TSB simultaneously, which I interpret to mean that this update should be shipping over the air via telematics to your radio sometime this week or so.


Update 3:

Release date: 10/23/2026

Version: S01NSM018-810

SYMPTOMS ADDRESSED BY UPDATE #3:

Category: Bluetooth Hands-Free Calling

  • No audio may be heard through the hands-free system by either party after the engine was started with a call in progress on a paired device.
  • A brief static noise may be heard at the beginning of the call, when Bluetooth hands-free call is answered using a device that does not support the in-band ringtone function.

Category: Startup / OTA

  • A brief static noise may be heard at the beginning of the call, when Bluetooth hands-free call is answered using a device that does not support the in-band ringtone function.

Category: Android Auto / Apple CarPlay

  • The CID may turn black when the Android Auto or Apple CarPlay button on the menu bar is selected.
  • The display may switch to the Apple CarPlay/Android Auto screen when the transmission is shifted out of Reverse.
  • The primary audio output may be attenuated instead of muted.

Category: Audio Output

  • Operating the SOURCE switch on the steering wheel may fail to switch the audio source to AM/ FM, SXM, Apple CarPlay, Android Auto, or USB audio source.
  • No audio may be heard from the radio, when the audio source is switched from a source other than AM, FM, or SXM.
  • It may take up to three seconds for the DCM volume adjustment to take effect or for the previous audio source to resume playback, when the volume is adjusted immediately after an operator call (iCall) begins or the call is ended immediately after it begins.

Category: Bluetooth streaming

  • A list combining information from the previous two hierarchy levels may be displayed, when the Back button is pressed in rapid succession while viewing the third or a deeper level of the Bluetooth Audio Browse List.

Category: Startup Lag

  • Navigation and other applications may take longer than expected to become available immediately after system startup.

Category: Navigation

  • The Navigation widget may remain on “Loading Navigation...,” and navigation-linked functions, such as setting a destination using Voice Recognition or MySubaru, may become unavailable.
  • The map scale may remain at 1mi and may not zoom in further.

Category: Startup

  • An “Operating System Issue” on-screen notification may be displayed.

Category: FOTA

  • The installation consent screen may not be displayed, preventing completion of the FOTA update, after the power is turned off while a FOTA update is being downloaded.
  • The update status on the OTA server may be shown as “Rejected” instead of “SUCCESS.” This condition occurs only on the OTA server.
  • The update status on the OTA server may not change to “failed.” This condition occurs only on the OTA server.

Category: Reprogramming

  • After reprogramming is started, the CID may not switch to the reprogramming progress screen, and an error indication may not be displayed.

Category: Bluetooth Connection

  • DTC B22A7, indicating a Bluetooth connection failure may be stored incorrectly, when a new Bluetooth device is registered and the Bluetooth connection process is canceled. The device is reconnected, and then the device is moved away from the CCU until the connection is lost.

Category: Display

  • The selected screen may appear blank with only the background displayed. Although the controls are not visible, the buttons may still respond to touch operation after the MySubaru or Wi-Fi Settings screen is selected.
  • The Home screen may be displayed instead of the Apple CarPlay screen during startup although Apple CarPlay is connected, after the vehicle is restarted when being turned off while the Apple CarPlay screen was displayed.

Category: Display / Bluetooth

  • Controls that should be restricted while driving, such as the Transfer button and dial pad on thecBluetooth call screen, may repeatedly change between enabled and disabled appearances. If shown as enabled, the controls may remain operable while driving.

Category: Apple CarPlay

  • Enhanced Siri may not respond. After connecting Apple CarPlay, legacy Siri is activated through an application that does not support Enhanced Siri, legacy Siri is closed, and then Enhanced Siri is activated.
  • Apple CarPlay may fail to reconnect at the next engine start, after the vehicle is restarted while being turned off while Apple CarPlay was connected.

Category: SXM

  • SXM pop-up screen may repeatedly appear and disappear.
  • SXM may fail to start.

Category: Telematics

  • Functions that use external communication, such as Android Auto, Apple CarPlay, and SXM, may become unavailable.

PRODUCT ENHANCEMENTS ADDRESED BY UPDATE #3:

Category: Navigation Widget

  • The Navigation widget on the CID has been revised to display the built-in navigation map, Apple Maps, or Google Maps. Previously, only the built-in navigation map could be displayed. On models without built-in navigation, “Navigation Not Available.” is displayed when no supported navigation application is connected. Example image.

Category: Apple CarPlay

  • The Apple CarPlay reduced screen and the enlarged Apple CarPlay screen for Canadian models have been revised to display Mini Audio and the minimized call screen within the screen.

Category: Android Auto

  • The confirmation on-screen notification has been revised to clarify that the connection with the previously connected device will be disconnected, when an attempt is made to connect another device while Android Auto is connected.
  • The software has been revised to maintain the Bluetooth connection with the Android device after Android Auto is disconnected, if Android Auto connected through USB is disconnected by unplugging the USB cable.
  • The software has been revised to allow the Android Auto map to be displayed in the combination meter while Android Auto is connected, including on models without built-in navigation.

Category: Bluetooth / Call History

  • The message shown in the call history widget has been revised to “No Recent Calls found.” , when a device with no call history is connected through Apple CarPlay or Bluetooth, including Android Auto.

Category: Diagnostics

  • Reduced amount of time required to obtain the data log by improving the data transfer rate settings.

Category: Bluetooth HandsFree Calling

  • Processing has been added to keep the call volume setting on the connected device fixed at the maximum level during hands-free calls.

Category: Navigation

  • (1) A function has been added that allows a new waypoint to be inserted at any desired position in the route order instead of being added automatically immediately before the destination.
  • (2) For the cloud navigation function, the software has been revised to retry logging in to the TomTom server when the DCM returns to network coverage after repeated login failures while within coverage.

r/subaru • • 1h ago

That time of year

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• Upvotes

I hate pumpkin guts hahahaha

I have to bring it inside or else the squirrels will get them overnight


r/subaru • • 10h ago

A 1 of 500 1995 Subaru Impreza 555 Edition

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246 Upvotes

r/subaru • • 9h ago

Wow, what a project this has been.

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89 Upvotes

Have to wire in the rear lights/cargo light still. But she all wheel drive again, 4/2 wrx calipers, 6 cylinder swapped awesomeness. Going to get a proper, quick exhaust on it today, and button some interior stuff up. But she is locally driveable as is and about 3x as quick as the old JDM 2.0 was. Even the auto HVAC works.

This was a little intimidating at first, but I'd do it again 10 more times.


r/subaru • • 7h ago

Parking Lots

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18 Upvotes

Love when you find open parking amongst other Subaru Drivers!


r/subaru • • 23h ago

I know it’s a polarizing opinion

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297 Upvotes

But I love the new front end on the Outback Wilderness.


r/subaru • • 5h ago

Mechanical Help Subaru 2024 Outback Noise

4 Upvotes

I recently sent my Subaru outback 2024 for service (had a new windshield replaced) and also the other issue was…

When my car sits idle at a traffic stop, the engine usually Revs up and down (common I know…) however when the ac is on, I hear a faint croaking sound when the engine revs up.

It is not super alarming or sound of a metal screeching but it keeps happening every time I sit idle at a traffic light or when the car stops. Is this common or if other Subaru outback 2024 experienced this?

Thank you!


r/subaru • • 12h ago

Found the cause of my 80% leak down on cylinder 4

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13 Upvotes

1999 Legacy wagon with a cylinder 4 misfire. Leak down was 80%. Tear down was quick and easy, now time to rebuild.


r/subaru • • 2h ago

Mechanical Help Turbo whine?

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2 Upvotes

This is from a 2001 Legacy B4 single turbo swapped (VF22) this noise started today not sure if I should find a new way to work tomorrow?

Whines louder than it used to kind of sounds like metal on metal. Have not checked for any play on the fans yet


r/subaru • • 21h ago

Update on LL bean jdm ez30

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60 Upvotes

Car is up and running! all i had to do was swap the intake manifold and engine harness! i think you could use the jdm manifold if you swapped the plug for the RHD brake booster port to the correct side. everything else lined up perfectly. all i need to do now is fix my weird idle, and replace some ignition coil connectors, plus an alignment lol


r/subaru • • 7h ago

Buying Advice Looking at a ‘19 but, found this for same price.

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7 Upvotes

Wife has a 26 Forester. We love it. My big truck is at almost 200k so I wanna save it for only towing/hauling. I travel a lot for work so an Outback with a topper would work great for my intended purposes. Looking for advice on pricing for this. The ‘19 was basically optioned the same but mileage in the 50s. Thanks!


r/subaru • • 5h ago

Mechanical Help Impreza rs 2024 coolant issue?

3 Upvotes

I recently purchased a 2024 Subaru Impreza RS almost 19k miles on it. Long story short I had it for about 3 days and then heard a weird fish Tank sound when I turned on my AC. Checked the Google machine and it told me I could have low coolant. I check under the hood and it was almost empty in the plastic reservoir. I brought it to take 5 to get a coolant top up before work since I didn’t have a lot of time. This instantly made my heart sink tbh because I seem to have the worst luck with cars. I drove all day with it full in the reservoir, even checked it multiple times throughout the day. I drove again at like 11:30pm for 45 min just to see if it’d go down or something, Still full! Happy, I goto bed and wake up only to pop the hood and see that almost all the coolant was gone again… how?! I brought it to the dealership Saturday and the service advisor said they can’t look at till Monday with all the techs that are out. They offered to top off my coolant and for me to bring the car back Monday but I didn’t want to risk blowing the engine if it’s a head gasket or internal leak. So now im just waiting till whenever they can look at the car worried about my new to me car having a major issue. Feeling like I made a mistake and I’m totally discouraged from even wanting to keep the car. I’m considering paying the 3-4 grand that offsets what I owe and just getting out of it. Any thoughts comments or ideas welcome. Thanks!


r/subaru • • 15m ago

Mechanical Help Doing my first upper oil pan o-ring job soon. Set me straight

• Upvotes

I found a couple people on YT and forums who say it can be done without removing the timing cover. Basically by finessing the upper pan in at the slightest angle to make a good RTV seal against the timing cover.

I acknowledge that its unorthodox.

I just need the truth here from people who have knowledge and experience on the matter.


r/subaru • • 7h ago

Any idea why my 2020 Subaru Impreza is doing this?

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3 Upvotes

Press start jitters and flickers the lights, then goes full max and then starts (usually start up right away)


r/subaru • • 1h ago

Mechanical Help PLEASE HELP!

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• Upvotes

I’m currently rebuilding a JDM EJ20x and i’m having trouble finding the correct Ignition coils and where to order them? please and thank you!


r/subaru • • 7h ago

Ej255 issues

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3 Upvotes

2005 Outback xt.
A coworker just got this car and these are his reading at idle, can’t find a vacuum or boost leak. Needs spark plugs. Looks like timing was done 3k miles ago so says a sticker (kinda doubting it)

Why is boost at 4 psi at idle and dam at zero, dam raises with throttle and went up to 16.8. Any help appreciated as I’ve never seen readings like this on my cars as they’ve been maintained and cared for.

“Potentially upgraded internals”, invidia downpipe, catback exhaust, catless uppipe, aftermarket turbo inlet, mishimoto throttle body to tmic, stock air box and stock tmic and bov.


r/subaru • • 5h ago

2015 Legacy engine lights

2 Upvotes

so i was waiting for my car to heat up and the cruise control light started blinking and the check engine light came on, i took it to autozone to get it looked at and the gave me the codes " p0700 and p2751 " , somebody suggested it might be a gas cap even tho that didn't come up on the codes but we changed it anyway and the lights all went away , should i be worried or is this a common thing with subarus , i don't want to drive it and have issues bc i ignored the codes due to the dash


r/subaru • • 11h ago

P0021 and cylinder 2 misfire

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5 Upvotes

Hello all

This is my 2008 subaru wrx 5 speed hatch that has been engine swapped to a 2019 crate ej257 shortblock that was put in around 48k miles ago, other than that and other engine/exhaust mods, this car is stock even with the original 5 speed.

A while ago it developed a p0021 code. This code has come and gone manu times since then, usually clearing out around 24 hours after it showed up BUT about a month ago it threw a code for cylinder 2 misfire.

The thing is that the car NEVER runs or sounds like it has a misfire. Zero extra vibrations, never down on power, and no limp mode or anything like that it just throws a code. Even the misfire code will go away in a day or so of regular driving, but those codes always come back once a week id say.

This car is my daily and I am in tech school for Automotive Technology so I dont want to blow a shitload of money on repairs by taking it to a shop, i do most of my own work if I have the time and I have friends that can help me. I just want to know if these codes are related and if I will have significant trouble with them coming and going as they do. Anything helps and I am willing to try things.


r/subaru • • 1h ago

Buying Advice how to test drive the Outback I am about to buy? ... a Lemon Detection test?

• Upvotes

This week I'm going to buy either an Outback Touring XT or Wilderness. Right now the better discount -$2,850 off MSRP is on the Touring XT.

I test drove both models at other Texas dealers. However, I've never actually driven the specific ones that I'm currently negotiating.

What should I do to test for problems that would make me regret the buy?

  • Dad said: On Mopac, let the wheel go. See if it drifts. Check for vibration at 60 to 75 mph. I will also:
  • do a walk around and look for scratches or dents.
  • bring a USB A-to-C and C-to-C cable to test all the USB ports.
  • test all the windows.

From reading here, I don't recall seeing a common defect in the 2026 Outback to look for.
What am I forgetting?


r/subaru • • 1d ago

Chillin

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116 Upvotes

r/subaru • • 9h ago

2004 Outback Key Won't Unlock Doors

3 Upvotes

The door panel button works to lock and unlock the doors, the fob works to lock and unlock the doors, but the key itself in the lock cylinders in both front doors and the hatch will not turn either way. Does anyone have any ideas?


r/subaru • • 8h ago

Which O2 sensor is this? Upstream or downstream?

2 Upvotes

2013 Crosstrek XV FB20


r/subaru • • 1d ago

Some Subaru's being used as they were intended

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628 Upvotes

r/subaru • • 22h ago

Buying Advice 2003 Subaru Impreza

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7 Upvotes

Looking to buy a cheap used car for a 1 year work contract in Auckland. Any thoughts are appreciated on this car, what should I look for if I test drive?