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? 2:26 www.youtube.com/watch?v=FFMjHoBcCW8
Aug 29, 2015 - Uploaded by fondupot
Short video showing how to adjust headlights up and down on a 2014 GMC Sierra. This will be similar on a ...
https://answers.yahoo.com/question/index?...20130125051810AAg9SM.. Jan 25, 2013 - There's two adjustment up around your headlight, one is for side to side and the other one is for up and down. Be on level ground and point at a ..
In the 1999 Chevy Silverado 1500, the headlights are not designed to be on all the time by default. They are typically controlled manually by the driver using the headlight switch, although some vehicles may have a daytime running lights (DRL) feature. If the headlights are continuously on, it could be due to a modification or wiring issue, and it's recommended to consult the vehicle's manual and seek professional assistance if needed.
Raise the hood and look for two small screws on the headlight, one is closer to the radiator for side to side adjustment and the other is for up and down adjustment.
Try this, remove the trim that covers the headlight switch, use a flat tip screwdriver and depress the tangs holding the headlight switch in place, pull the headlight switch toward you along with the wires, unplug the headlight switch from the electrical connection, if the dome light goes out, chances are you have a bad headlight switch. Good luck, Gary
Turn the headlight switch to the off position (not auto) and depress the overhead light button, located just below the cargo light switch, several times ( 3-5 times) until you hear a bell then the headlight switch actually works as indications show around the knob.
If you park in front of a garage door or building you can line up the lights .right behind the headlight you will see two shafts sticking up just below the support the headlights are attached to. One will adjust lights up &down the other one will adjust side to side.
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