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Check the bulbs and check the fuses.
You must have two headlights, all other lights are in fact not headlights and just additional light aids.
my head lights wont come on ,,all other lights work ,,no head lights
Yes, they did.
The required height of headlights, tail lights, and other auxiliary lights varies from state to state. StreetLegalLaws.com has a current list of lighting equipment laws for each state.
I recently swapped the other way, from Silverado to Cheyenne grill when repairing collision damage on a Silverado. I did not care for the plastic/ composite headlights, and the donorparts were from a Cheyenne. All of the bolt holes were there on both trucks to goeither way. After removing the grille, remove the spring/ buckets/ adjusters from the Cheyenne, install the silverado composite headlights (you will need four metric bolts to match the existing headlight bracket retaining nuts in the radiator support of your truck. You will have todo a little rewiring since the connectors are different for the sealed beams and the composite lights. I have seen companies on the net that sell a complete Silverado change over kit. FYI:Be prepared to battle with the composite headlights yellowing and getting dim at night if the truck will be parked outdoors. Areyou interested in selling your Silverado parts? I have a used Silverado grill and headlights I would be willing to trade.
The horn, The signal lights, The brake lights, The back up lights, Flashing the high beam headlights,
If the headlights on the 2004 GMC Envoy are not working, there could be a loose connection somewhere. If all of the other lights are working, it is most likely not a fuse that has blown. Double check the wiring to see if there is a loose connection.
Check the fuse.
answer: replace the headlights switch.
You change the headlights like all of the other cars you ever had in your life.So the way you do is that you open up your hood on your car and find the lights and then you change them.
They are either the wrong bulbs or one of the filaments is burned out. The bulbs should have two filaments. One is illuminated when the lights are on. The other is brighter when the brakes are used.