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Old 05-26-2018, 03:53 AM   #1
KoachKoKo
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Join Date: Oct 2016
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Default 2015 WRX Gear Indicator issue- need help

I have a 2015 WRX 6MT, base model.
I bought the car new.
Just went over 70 K miles.

Something funky happened about 2 and months ago for the first time since I owned the car.

When I stepped on the brake, gear indicator will show "R" and the rear view camera will turn on and display on the info screen.

This happens only when I press on the brake, doesn't matter which gear I am actually in. (not counting when I am in reverse gear)
When I let go of the brake, the gear indicator will go back and show the ACTUAL gear I am in, and the info screen will go back to it's original state.

I have checked. While this is happening. The reverse lights does NOT turn on. Reverse lights only turn on when the car is actually in reverse gear.

The time between the first and the second time this happened was about a month. But since then it has happened more frequently.
Now it's happening almost daily. At random.

Has this happened to anyone else? Please help.

Thank you.
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Old 05-26-2018, 03:11 PM   #2
n2oiroc
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id start by checking the brake switch wiring and look for any bad insulation.
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Old 06-01-2018, 03:47 PM   #3
KoachKoKo
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Thank you. I will have brake switch wiring checked.

Any one else encountered this issue?
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Old 06-01-2018, 05:04 PM   #4
Cougar4
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I suspect that the problem might due corrosion at a connection possibly in the rear area of the car. Voltage can cross over to places it shouldn't when corrosion gets in between the wire connections in a terminal. Check the connections in the rear area of the car to see if water has gotten to any of the connections. When you press the brake pedal the brake switch passes voltage on to the brake lights and if there is a bridge of corrosion between the brake light wiring and the rear camera then some power gets applied to the camera circuit also. If there is no corrosion issues then I would suspect something metal has worn through the wire insulation somewhere and the cross between the two circuits is happening that way.

Last edited by Cougar4; 12-26-2018 at 06:41 PM.
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Old 06-02-2018, 03:57 AM   #5
CosmoTheCat
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Any windshield work recently? Stereo work?
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Old 06-02-2018, 09:37 AM   #6
Charlie-III
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Silver Sleeper BK, 5MT

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Quote:
Originally Posted by CosmoTheCat View Post
Any windshield work recently? Stereo work?
Or, sunroof with clogged front drains?
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Old 08-16-2018, 10:58 PM   #7
immortal
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Hey ...help! why would the windshield or sunroof mess with the gear indicator?

Mine is stuck in reverse... i did just replace both windshields and actually deleted the sun roof - put a carbon roof in.
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Old 08-16-2018, 11:19 PM   #8
Charlie-III
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Quote:
Originally Posted by immortal View Post
Hey ...help! why would the windshield or sunroof mess with the gear indicator?

Mine is stuck in reverse... i did just replace both windshields and actually deleted the sun roof - put a carbon roof in.
Windshield leaks as well as roof drain leaks gets water inside the car. This leads to high humidity which can cause corrosion, shorts in wiring/connectors, etc.
All wiring, connectors, modules inside the car can have issues with water inside.
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Old 08-17-2018, 01:36 AM   #9
immortal
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Quote:
Originally Posted by Charlie-III View Post
Windshield leaks as well as roof drain leaks gets water inside the car. This leads to high humidity which can cause corrosion, shorts in wiring/connectors, etc.
All wiring, connectors, modules inside the car can have issues with water inside.
Ahh...well, no water inside my car...it's been in my garage and I literally just put the carbon roof on and threw the windshields back on.

No corrosion either, I'm in California...keep everything nice and dry.

I'm going NUTS here...I have modified tons of electrical ****, so I know it's related obviously.

But I just can't pin point the problem. Stuck in Reverse on gear indicator, reverse lights on...whats funny is my fog light has a reverse light and it's tapped into the tail lights and the fog light reverse isn't on...

I'll paypal anyone $100 if they can help me diagnose and fix this... I got a multimeter and the skills, just not all the smarts here...

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Old 12-25-2018, 07:22 PM   #10
rpanunzio12
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Default Help same issue!

I am encountering the same issue, have not had time to look into yet but Iím thinking itís the GCS 4th brake light.

Have you figured this out itís gonna make me crazy!!
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Old 12-26-2018, 07:01 PM   #11
Cougar4
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The trouble is either on the power side of the brake light circuit passed the brake switch or on the ground return side of the brake lights. I suspect the power side is more likely where the trouble is at. That would mean that power is somehow bridging to other circuit areas after the brake switch. I suggest you purchase a factory service manual for the vehicle so you can check out the wiring to the brake lights. The manual is your best friend for these kinds of troubles and can save you all kinds of time and money on electrical repairs.

Check connections for signs of corrosion and wires for insulation damage. The trouble is most likely under the dash but it could possibly elsewhere.
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Old 02-12-2019, 05:49 PM   #12
Cbusaurus_wrex
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CBS

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Quote:
Originally Posted by KoachKoKo View Post
I have a 2015 WRX 6MT, base model.
I bought the car new.
Just went over 70 K miles.

Something funky happened about 2 and months ago for the first time since I owned the car.

When I stepped on the brake, gear indicator will show "R" and the rear view camera will turn on and display on the info screen.

This happens only when I press on the brake, doesn't matter which gear I am actually in. (not counting when I am in reverse gear)
When I let go of the brake, the gear indicator will go back and show the ACTUAL gear I am in, and the info screen will go back to it's original state.

I have checked. While this is happening. The reverse lights does NOT turn on. Reverse lights only turn on when the car is actually in reverse gear.

The time between the first and the second time this happened was about a month. But since then it has happened more frequently.
Now it's happening almost daily. At random.

Has this happened to anyone else? Please help.

Thank you.
I have almost the same issue! My 2015 WRX's reverse camera and gear indicator are stuck in Reverse. Not when I press on the brake though. All. the. time. It used to just do it every once in a while. But now it's constant. Even worse, this has spiraled into my Hill Assist and Vehicle Dynamics to both be disabled. And now, today, my cruise control is disabled. So frustrating. Did you ever find a fix?
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Old 02-12-2019, 06:26 PM   #13
anarekist
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sounds like a short, drastic, but maybe take apart the whole dash and look for corrosion, lift the passenger side foot cover as a ton of wires move along there to the back too.

does your reverse lights come on too?

there's a subispeed button that activates the rear camera and reverse lights. for reference.
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Old 02-12-2019, 06:29 PM   #14
Cbusaurus_wrex
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CBS

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I should also add that I have the iJDMtoy F1 fog/reverse light. But I'm not sure that's the issue. It's been installed for a while. Even if it's shorting out, I can't imagine it having that large of an effect on my car.
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Old 07-20-2019, 05:01 PM   #15
BlueBlur211
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Iím going to bump this. This has been happening to my 16 STI for over a year. Iíve almost given up as I couldnít find any thread on this when my issue first started. I do have lots of aftermarket electrical stuff. IIRC my issue started after I installed the ijdmtoy rear fog/brake light. However I soldered my wires to the driver tail light and electrical taped everything as well. My issue only happens when the headlights are turned on and I press on the brake. I did not happen immediately after install btw. I also get hill assist and other things disabled.
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Old 07-22-2019, 02:26 AM   #16
CosmoTheCat
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Is bigger than yours.

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The reason I asked about windshield work is due to the fact that there is wiring to the rearview mirror that can get shorted out, relates to the reverse circuit and I don't believe it's listed in the FSM. Check the wiring above the mirror, look for pinched wires.
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Old 07-22-2019, 06:30 PM   #17
BlueBlur211
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OP, you find a solution? Do you happen to have a jdm rear fog/brake installed? Another guy in this thread has one and has the same problem Iím beginning to thing itís the cause...
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