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Sounds like the dimmer switch is shot and needs replacing.

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Q: Why no low beams high beams only on an 2004 trailblazer?
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Why does my 2004 trailblazer ac fan only work on high?

The 2004 Chevrolet trailblazer air conditioning fan switch has three settings. The switch can malfunction, and only work in the high setting.


When the low beams are on the high beam indicator is on too?

the high beam indicator is only on when the high beams are on


When you are driving in snow or fog should you use your high beams or low beams?

Low beams - high beams only light up the snow or fog which further impairs vision.


Why do turn signal only work when high beams are on?

Take your car in to have it checked. Turn signals should work without high beams.


When turning on head lights in my 1993 ford explorer they do not work when you hold the high beam switch then the head lights work?

your bulbs are burnt out. when you switch on the high beams its only the high beams. but when you flash your brights it lights up both high and low beams.


How do halogen headlamps function what makes them change from low beams to high beams?

If you look closely to your bulb. Their is two wires in side. Only one comes on when switch is turned to low beams. Then switched to high beams both wires light up.


Why your High beams and low beams will not work?

Fuse or dimmer switch is the only answer i can think of if lights come on but just won't go from high to low or visa versa


Why do I have High beams but no low beams on my Toyota Sienna?

Your headlights are burnt out. Ever see a car coming at you with their high beams on and when they turn them off they only have one or none. Check with the parts store but that would be the easiest problem


Which lights should you use when you are drivingin a fog?

Low beams and fog lights if equipped. High beams only light-up the fog more.


Why was I stopped for using my high beams at night?

High beams should only be used in extreme darkness and only when there is no other vehicle in your opposing lane. The reason behind this is because high beams can be blinding in the opposing lane and can and have lead to very serious accidents.Answer If your high beams were left of as on-coming traffic was approaching it would be blinding to the other driver. If you have your high beams on while in back of another car, it could also be blinding to the driver your following through side and rear view mirrors. Either way it is dangerous. If your high beams were left on constantly through - lets say a city - where lighting is good, the police officer may have determined that it was suspicious, and was checking to see if you were on alcohol or drugs.


When do you use high beams?

High beams are just higher-powered/brighter headlights, so they are used when it is dark out, but only when no other vehicles are either in front of you going the same direction or coming from the other direction in the other lane. Usually high beams are used on highways where there are no street lamps, during the late hours of the night when there is little traffic. Also, if it is foggy out, high beams won't help visibility - that's what fog lights are for. Using high beams in fog will make visibility worse.


Why does your radio in your 2004 trailblazer only play loud when the inside of the car is very hot?

There's a short in the fuse housing.