Automatic Headlights on 1999 Chevy S-10 Blazer.

specwizspecwiz Member Posts: 2
edited July 2014 in Chevrolet
I have a 1999 chevy S-10 Blazer with the automatic headlights. The sensor still turns off the daytime running lights and turns on my taillights and front running lights but the headlights no longer come on. They did come on for a couple of weeks with the tilt steering in the full up position but no longer. Looking for advice.


  • repairdogrepairdog Member Posts: 948
    Could be the switch itself as its a big self contained switch and sensor with heat sinks on it about $50. Will the headlights work by rotating the dial to force them on? There is a relay under hood. The multifunction switch (turn signals/hi-low beams is in the column and possible the connector is loose or the contacts junk by your post. Again try the dial first.
  • specwizspecwiz Member Posts: 2
    Thanks for the reply. I tried the dial-no luck there. As for the sensor, all other nighttime lights come on, including dash lights, and the daytime running lights switch off. I am hoping that tells me the sensor is ok. That leaves the multifunction switch-is this what is called the dimmer switch at the parts store? I have not checked that yet, but plan to this weekend.
  • jlflemmonsjlflemmons Member Posts: 2,242
    Check the headlight bulbs. I drove myself nuts on a problem like this only to find out that both right and left bulbs blew at the same time.
  • eugeneiiieugeneiii Member Posts: 3
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