Why are my GMC Envoy Trailblazer headlights not working?

2002-2009 GMC EVOY and Chevy TRAILBLAZERS have a common problem with the headlamp relay causing low beam headlight failure. This video is just a quick tip for anyone who may be experiencing this problem. Thank you for watching! please like and subscribe! Loading…

How much does it cost to replace a GMC Envoy headlight?

I have a 1999 GMC Envoy with HID low beam headlights. One of the headlights went out and I was quoted the following replace the Igniter which costs $657.00 per side and also the Ballast which costs $616.00 per side. Or you could do the Headlamp Assembly which is around $1,000 per side.

Are there any problems with my GMC Envoy?

I have a 2005 GMC Envoy and my headlights have quit working, well at least the low beams (both sides at the same time). I have checked the fuses and the bulbs and both are fine. What else can I check before giving up and landing at the mercy of a local auto shop?

Why are my GMC Envoy head lights dimming?

I have a 2004 envoy xuv and i have noticed that when i use the power windows my volts gauge goes down slightly and my dash lights as well as my headlights dim a little. i tested the battery and i replaced it and then i tested the alternator and it is putting out 14.45 volts. what else can it be? please help!

What to do if your headlight plug melts?

So I ordered a new set of headlights from ebay and once again the Plastic Plug that goes into the headlight bulb melted along with the wires themselves, Within 3 months both headlight plugs melted, Tried Ceramic Plugs, the Wires melt, Really don’t know what to do here.. think it might be time to sell the thing after it gets out the shop..lol

Is there a problem with my headlight plugs?

Hello GMTnation I have had an issue with my Headlight Plugs burning up inside the Headlight assembly, I purchased new Headlight assemblies in december and noticed today that the headlight was out on one side again.. took the bulb out and What do you know Light and Pigtail Melted.. Not sure what to do here ..

What kind of headlight plug do I need for hid?

HID’s come in 35W or 55W.. so most of us do 35W and have been safe.. Just go to your local parts store, pick up some new pigtails, then go for the HID conversion…

Why are the low beams on my truck not working?

My low beams suddenly stopped working. All the fuses are good. I swapped the relay and that was not the problem. The bulbs have less than 100 hours on them. I have read about similar problems.

Why are the DRLs not working on my GM Truck?

DRLs not working. Checked both fuse box. The one in the dash has nothing labeled for headlamps. Will have to check for flashers. Did not thing the headlamps came on with flashers. No not the flashers. If you pull the multiswitch lever all the way to you the highs and lows come on together.

Why are the fog lights not working on my GMC Envoy?

The Fog lights work, and the high beams work when the knob is turned to “on”, but not on automatic. It’s almost like the sensor is not sensing that it is dark outside. Can anyone help?

Why do high beam headlights work but low beams don’t?

Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.

What causes a headlight to stop working in a car?

All the electrical systems in your car, including the headlights, are protected with fuses. These are designed to ‘blow’ and break the circuit if too much power comes through them. This protects all the components on the circuit. If a headlight fuse blows, it could cause the headlights to stop working.

What can cause a low beam headlight to be dim?

If it is, use a voltmeter to see how much power, if any, is reaching the headlights. If there is no power reaching them, there is a break in the wiring somewhere between the fuse panel and the headlights themselves. Thanks! What can cause the light to be dim except when on the high beam setting?

What to do when your low beam headlight blows out?

You can often tell when a headlight blows out while you’re driving, but confirm which bulb has actually blown out by leaving your headlights on and getting out of the vehicle to check. Then get back in your vehicle and turn on your high beams. Some vehicles use a single bulb for both high and low beams while others do not.

Why are my headlights not working at night?

Still, if you drive a lot, especially at night when you must constantly change between high beams and low beams, you might wear out the headlight switch. It doesn’t take long to restore fogged headlights and night visibility.

Why are the high beam lights on my Silverado not working?

For a few weeks I am borrowing a Chevy Silverado truck whose high beam lights are not working and I’d like to take a try at fixing it. In old cars you could just follow wires and know where the problem was but I have no…

Why are the low beams on my car not working?

Look on the bright side, themoney savings will offset the embarrassment factor. Re: Help please – Low headlight beams won’t come on… Me not so lucky. Low beams won’t work and everything else does. Not the bulbs, not fuses, not relays, not dimmer switch or blinker part. There’s not power at the low beam socket.

What causes a burnt out light bulb on a Chevy?

A burnt out bulb is usually discolored and pieces of the filament will be loose inside the bulb. If a visual inspection shows the bulb is still good, there may also be a broken wire in the harness to that light.

What makes the low beams stay on in a Silverado?

I assume it’s splicing the tan lo beam wire to the yellow headlight feed wire just before the dimmer switch so that the lo beams stay on when the high beams are turned on? (I have the composite headlights.)

What should I do if my Chevy headlights are not working?

To check alignment, park about 10 feet from the garage door wall and turn the lights on. Low beams should be aimed straight forward and hit no higher than your hood line. The high beams should move slightly, but not too much higher than the low beams.

Where is the headlamp relay located on a car?

The headlight relay is located in the left instrument panel fuse block, on the left side of the instrument panel, and the daytime running lights relay is located in the underhood compartment fuse block, which is located in the engine compartment.

What to do if your headlamp relay is not working?

Check the voltage at the dimmer switch. Youll see it on the steering column a rod goes down to the 3 wire switch. Youll need a test light to check your voltage with. helpful? helpful? If the relay is the problem, just unplug the old one and plugin the new.

Where is the fuse box located on a GMC Envoy?

Fuse box location Rear Underseat Fuse Block It is located under the rear seat on the driver’s side of the vehicle (tilt the seat up, remove the fuse box cover). Engine compartment fuse box

Can a 1999 GMC Envoy have standard headlights?

As of Yet, after extensive searching, can not find a thing regarding converting HID headlights on a 1999 Envoy to Standard Headlights. If you run across something, it would should be appreciated if you would pass it along to me. Thanks I am in the same boat with a 2000 Jimmy Diamond edition and yes you can.

Why are the back lights on my GMC truck not working?

The “t” that plugged into the rear wiring harness went bad on mine and when I took it out of the loop that fixed the problem for me. Not that different lights worked on the rear end at different time. So sometimes the brake lights worked. Other times it was just the back lights that were a ting weird. I finally figured out this problem.

When do back up lights do not come on?

Back up lights do not come on when transmission put into reverse. Back up light switch on your transmission! how do I CHECK THIS OUT WITH TEST LIGHT AND WHAT WIRE TO CHECK? If the lamps are good: There are 2 fuse in the backup lamp circuit. Check both. They are both located in the under hood fue box.

Where is the backup lamp fuse in a car?

They are both located in the under hood fue box. One is called the Backup Lamp Fuse 25 Amp, and the other is called the Vehicle Backup Fuse 15 Amp. If both are ok remove the Backup lamp assembly and check for 12 volts at the Light Green wire which supplies the backup lamps with power when the vehicle is in reverse.

Why does my GMC Envoy not turn on?

Turns on the lights ,radio,dash, inside lights ect but will not crank. I understand there is a built in security system that will not allow it to turn on if it thinks it’s being tampered with.

How many people have commented on the GMC Envoy?

Go to the next comment I’ll post it on there don’t worry it’s easy as heck . 35 people found this helpful.

Why does my GMC Envoy go off at night?

I have a 2004 Envoy SLT and three times in the past year the headlights have gone off at night while driving. The manual switch will not turn them on. Only the emergency flashers will work.

Where are the screws on a GMC Envoy headlight?

The bulb retainer will screw to the headlight assy at the same locations as the HID bulb Security Torx screws. You might want to pick up some #10 screws and replace the security Torx fasteners. The ballest is behind each headllight assy.

Why are my high beam headlights not working?

In the case of high-intensity discharge (HID) headlights, or Xenon headlights, there’s an additional component. To get the xenon and salts to plasma state, the HID generator bumps the voltage up to 30,000 V, then stabilizes around 90 V when the bulb is in operation. If the generator fails, the bulb won’t light.

How does a high beam light bulb work?

Get familiar with the fuses and relays that control your headlights. The headlight switch usually doesn’t control the headlight bulbs directly, but through one or more relays. The headlight switch powers a relay, which powers the headlight bulb. This protects the headlight switch from the high current used by the high beam headlights.

Do you need high beams or low beams?

Low beams are the bare minimum, for safety’s sake, but high beams are an absolute must for night driving over 25 mph. For most vehicles, headlights are a basic electrical system, controlled by switches and relays to turn them on and off.

Where is the low beam relay on a GM Truck?

The low beam relay is on the bulb side of the BCM, and so is the high beam, as it appears the high beam relay is operated by a relay on the BCM (which may not be a removable relay). Don’t see why it is also labeled PCM. Click to expand… soon as I get one, i’ll get on it. I’ll post later what I find. Thanks for your assistance!

Why are my low beam headlights not working?

If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams.

What to do with a 2004 GMC Envoy?

This 2004 GMC Envoy came in with the passenger side low beam not working. This repair applies generally to Envoys, Bravadas and Trailblazers, with only slight differences in the headlight assembly removal. Some require removing the grill assembly.

What to do if your low beams don’t work?

Either way, if your low beams aren’t working but your high beams are, the first things we check are the bulbs. If you’re thinking of replacing the headlight bulbs yourself, make sure you’re familiar with the correct installation procedure for the type of bulb you’re replacing.

Is it safe to drive with high beams on?

No one wants to be driving along at night and have their headlights go out. In many cases, the high beams will still work when the regular headlights stop, but it’s just not safe to drive around with your high beams potentially blinding other drivers.

What does it mean when your headlights don’t work?

With that in mind, it can be tremendously useful to start off by looking at whether both, or just one, of your headlights have failed, and whether or not the high or low beam mode still works. When headlights stop working, it’s usually an electrical problem or an physical issue with the bulbs themselves.

What to do when both head lights stop working at the same time?

When that happens, the operational lifespan of your headlight capsule will be severely compromised, and the only fix is to replace the headlight assembly. When both headlights stop working at the same time, the bulbs usually aren’t at fault.

Can a headlight bulb burn out at the same time?

Even though both of your headlight bulbs have been exposed to the exact same conditions, they usually won’t fail at exactly the same time. So it’s actually pretty common to have one bulb burn out before the other.

Is the GMC Envoy headlight and bulb the same?

Easy Same for most years If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.

Why do high beams work but low beams don’t?

This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t. The normal headlights are on far more often than the high beams, so the low beams burn out more frequently. Some vehicles have entirely different bulbs for the high beams, and other models have headlights with two different filaments.

Why are my trailer tail lights not working?

Trailer tail lights not working? Make sure that each of tail lights is properly grounded. Ground is achieved in one of two ways. In the first case, separate wires come out of each tail light assembly and are attached to a metal frame. A more common case scenario presupposes ground to be provided through the bolts of the tail light assembly.

Can a headlamp be used as a bike light?

This novel headlamp is an all-in-one system that easily converts from a headlamp to a bike light or even as a multipurpose lamp around your campsite. The trick: It uses a magnetic attachment to snap the LED light into multiple mounts—included mounts are the head strap, handlebar attachment, and a carabiner clip.

What should I look for in a running headlamp?

Running on an open road under a full moon is a completely different experience than running singletrack trails under heavy tree cover—and both require different lighting. In general, look for a headlamp that’s capable of cranking out at least 200 lumens on its high setting. Lumens is a measure of the light’s intensity—brightness.

What to do if your Trailblazer headlights dont come on?

This applies to 2003, 2005 and 2006 Trailblazers also. Most people dont realize this is for the headlamps. An easy way to check that is to swap it with the same type relay that is right next to it. Turn the key off, swap relays, turn key on, then turn head light switch on. It they come on, replace the bad relay.

What kind of light does a no glow trail camera use?

No glow infrared trail cameras use led emitters which transmit infrared light above the 940-nanometer spectrum. While light above the 940-nanometer spectrum is typically not detectable by humans (or any other animals), it is important to note a very small percentage of species are able to detect 900+ spectrum light.

What to do if your headlights Don’t Come On?

Repairs for this problem = Replaced both headlight bulbs and checked fuses . Answer: As long as all the fuses are good, and the high beams work correctly, then the common problem is a faulty headlamp relay. See picture below.

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