9006 is the number...Wgner makes a great bulb....make sure the socket isn't melted, as Chevy can't seem to solve that problem.
your bulbs might be blown, if not, try your wiring harnes, see is it has nics or cuts in the wires. or you blew a fuse
The bulbs are located for the headlights under the hood of the car.
You can do this with using different bulbs. The best was to change these is by using the users manual.
There are many online retailers that stock replacement bulbs for Chevy truck headlights. You can purchase such an item from sites such as AutoAnything, Amazon and Auto Zone.
Any DTC's, and ensure all light bulbs and fuses are functioning properly (ensure they are low beams, not DRL's)
yes,4 separate bulbs,2high beam-2 low beam
How to change the bulbs in the climate control for a 1999 Chevy trailblazer
The easiest way is to pop the grill off. Then you can pull up the retaining clips (two on each headlight) and then drop it forward for simple clear access the bulbs. If you remove the side marker light from the housing it will give you easiest access to the bulbs. We have complete instructions at our enthusiasts forum at www.trailvoy.com
Check bulbs, fuses, and check for wiring problems
Check the bulbs and check the fuses.
It is true to say that Halo headlights bulbs can be replaced.
You will probably have to take the complete headlight assembly out or loose to be able to get to the bulbs.