My bright lights on a 1999 chevy pickup come on but the low beam lghts dont come on with them?? Are they suppose to be 4 way???

SOURCE: 1999 chevy cavalier no low beam light

your in for a real treat.... i had a similar problem with mine, the stock gm wiring is terrible, your best bet pull the wiring apart in the front of the car and inspect each wire splice they tend to corrode and once it gets to a certain point it wont allow any electricity to pass, i ended up rewiring the entire headlight system myself. you can get the wiring diagram from the haynes manual. good luck

SOURCE: My headlights are not working, but shows my high beams are on

Low Beam Fuse may be bad.
Low Beam relay position is bad.
Stalk that controls the high/low beams/cruise/lights is bad.
Low beam filament may be bad in both headlamps.

SOURCE: low beam headlights not working

check voltage at switch

SOURCE: i have a 2003 chevy cavalier. headlight issue

The blinking light is telling you that you have a headlight out, if you look the service light should be coming on when the light stops blinking.
Replace the head light and all should be fine.

SOURCE: 2007 chevy trail blazer low beam lights wont work.

maybe a fuse the fuse box is under the drivers side passenger seat . sometimes ive seem them get something spilled on them and i had to wiggle the fuses to clear the corrosion