NOT service engine light.. just to make that clear.

So for the past few months this light will come on in the message center. If I turn the car off then back on the light will be gone. I recently noticed that the light comes on when I pull my light button out and put my fog lights on. (was doing this before i did any mods to my car)

I checked all my exterior lights and there all fine. I figured it has something to do with a burned out light or something. Is there anything else I can check?

I can't get the code read without a tech2 scanner i believe. And since the light only comes on intermittently its hard to get the code read at a dealership.

 

Why can't you take it to an Autozone or something and get the code read for free? Different Pcm I see in your sig.

 

I tried using a cheepo scanner that autozone has but it wont pull those codes in the message center.

 

That stupid SVS light can be ANYTHING. Since you say it is popping on when you mess with your lights, perhaps there is a module that is going bad?

 

I'm not sure if anyone has truly found a way to clear this alert but I recently figured it out on my 2000 MC SS. I've ignored this "Service Vehicle Soon" alert for years. I have two scanners and also had it scanned an no one could find the bcm code on it. i can't justify a Tech 2. So I just let it be.

Well as of yesterday I did some searching and came across a YouTube video where this guy explained he was having the same issue. He unlike me has a Tech2 and found the code. He also notice his night time lights were continuously on. The code he got was for the "Ambient Light Sensor".
This little jewel is right on top of the dash close to the windshield.

Now I've also wondered about my night time lights always on but thought it was due to aftermarket bulbs. So anyway I go to my local pick n pull and get this sensor. I replace the old with this new and SOB the alert cleared.

All these damn years I couldn't find this and then I finally do another search and it was one of the simplest fixes ever on this car.

So if you still have this issue might look to replace this tiny sensor.

 

replace your gas cap