Oldsmobile Alero Service Engine Soon- Automatic Headlights

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2001 Oldsmobile Alero. Question:
Why does my service vehicle soon come on? I have a problem with my 2001 Oldsmobile Alero. I recently had the service vehicle soon light come on. So i look in the booklet that came with it and was wondering if it was the Automatic Lighting Control and how to fix it. Only the Daytime Running light are working and i have no nighttime light.

I would greatly appreciate this Thank you.

ANSWER:

The Service Vehicle Soon light can come on for several reasons. A problem in the ABS system which will usually cause a Traction system light, A communication problem between the BCM and another computer, or in the interior or exterior lighting systems.

If you are describing that the automatic headlights do not work, or the headlights do not work from the headlight switch, then the first thing to do as always is to check ALL fuses. The Service Vehicle light can come on for something as simple as a blown fuse, headlight bulb(s) burned out, or can get more involved as a problem with the ambient light sensor for the auto headlamps.