Two days after taking my 2003 Forester in for a new radiator, the tail lights and parking lights started staying on when the car was turned off and the switch for the lights was turned off. I found the 20amp fuse for them and removed it, but have to plug it back in when it gets dark. Is the problem a relay? The mechanic who replaced the radiator said he doesn't feel it could be anything he did.

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

....

momentarily turn the switch clockwise when it in the auto position and it should turn the lights on or off, if not you may have a bad switch relay located in the power distribution box under the hood.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_4c166ba81493f541

I suppose you can if you want to use a malfunctioning car. Please read the following article:

Why Is My Engine Light On?

hi is it just the taillights or is it the tail lights and the parks lights?

it has command start ???? Is this some kind of aftermarket add on ? This shouldn't have anything to do with the running lamps . unless someone hooked something up in correctly . Does the car have DRL - day time running lamps ? The Daytime Running Lamps (DRL) control module is designed to automatically operate exterior lights depending on outside light conditions.
The DRL control module operates in 2 modes:
• The day mode
In the day mode, the DRL control module turns ON the high beam headlamps at a reduced intensity when the DRL ambient light sensor detects daylight under the following conditions:
- The ignition switch is in the RUN position.
- The headlamps are OFF.
- The park brake is OFF (released).
• The low light mode
In the low light mode, the DRL ambient light sensor detects darkness, turning OFF the high beam headlamps and turning ON the low beam headlamps through circuit 10.
Additionally, the DRL ambient light sensor turns ON the following lamps through circuit 9:
- The park lamps
- The sidemarker lamps
- The license lamps
- The tail lamps

I have had the parking lights on my 1998 forester stay on w/ no way to turn off. Used the remote door lock to lock and unlock car and the lights went off?????????? This has happened twice with the same solution

Which of the tail lights comes on? Is it the parking light or brake light? And is it only one side that is coming on? This is a very strange symptom. The Body Control Module (BCM) controls the light and could be the problem, but before replacing it, a good diagnosis needs to be done.

yes there is you need to locate the unit,usually fitted in the rear trim near tail light just have to look for it,put it in reverse with the key on to hear it,theres a vol control on the unit to adjust the volume

there is a switch on the steering column top dead center rocks foward and back, that's for just parking lights, yours is in the on position

Are you seriously re-posting a question from almost 10 years ago?