Headlights won't turn off

I have a '99 Blazer and I can't get my automatic headlights to turn off at night. My boyfriend has an '02 S-10 and he can get his to turn off by pushing the Dome Override button about 4 times, you hear a chime then the lights turn off. I've heard that this should work on all models '99 and up. But I can't get it to work on mine. We even swapped out the headlight switches and it still didn't do anything. Anyone know what could be wrong or what I could do to turn my lights off at night?

I have a '99 Blazer and I can't get my automatic headlights to turn off at night. My boyfriend has an '02 S-10 and he can get his to turn off by pushing the Dome Override button about 4 times, you hear a chime then the lights turn off. I've heard that this should work on all models '99 and up. But I can't get it to work on mine. We even swapped out the headlight switches and it still didn't do anything. Anyone know what could be wrong or what I could do to turn my lights off at night?

Are you trying to turn them of when truck is sitting still or moving.
Have you tryed the emg brake on a little?

i have a 99 sierra and there is a sensor on the dash that automatically turns on the lights when it gets dark the only cure i found was to press the e-brake before turning the key to on or starting the truck but pressing the e-brake after it is started doesnt seem to work