Subaru Forester 2001 tail lights, break lights

Faulty switch, or you have a Body control Module communication issue. You need an auto-electrician with a pro grade scan tool computer to check live data and communication between all the systems.

Or it is the Parking Light secret switch!!

https://howtune.com/articles/239-subaru-lights-stay-on-and-won-t-turn-off

https://www.google.com/search?q=2008+Subaru+Forester.+The+parking+lights+and+rear+tail+lights+stay+on

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The pic attached shows instructions for the headlight and signal.
for just the signal light start by removing the phillips screw (A) from the tab above the headlight. Without breaking that tab, carefully pry the unit out from the corner start at the fender edge use something thin and plastic like a disposable knife with the teeth smoothed off.. once its out twist then pull out the bulb socket. They usually have markings to show the direction to twist. The bulbs are mostly the glass press in type which click when installed fully.

images for 2001 Subaru Forester wiring

Open the assembly and dry it. I would do so in full sun on a in low humidity and add a clear silicone sealant around the wire connection harness and around the rim of the light cover. The one around the light cover should be thin. If it is still happening, dry it again and place a small amount of baking soda in the assembly. It will settle to the lowest point and should absorb moisture.

Hello and welcome to FixYa!

As a first course of action, please check the bulbs for it can be blown. If the bulbs are good then it can be just a blown fuse for the tail light.

Hope this helps and thank you for using FixYa! Have a good one

how many mile is on the car it could have a bad muffler or possibly need a tune up

undo the negative battery terminal for around 10 to 15 minutes and then put it back on and the light should be out. it resets the computer

should just require a quarter turn of the socket to remove it

Robert

broke piston rings, engine needs overhaul.