Why are the headlights not working on my Chevy Trailblazer?

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. This relay is in the under hood fuse block. A lot of the time it is overlooked because it is labeled “HDM”.

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 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.

Where are the fuse panels on a Chevy Trailblazer?

Here you will find fuse box diagrams of Chevrolet TrailBlazer 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

When did the first Chevy Trailblazer come out?

In this article, we consider the first-generation Chevrolet TrailBlazer, produced from 2002 to 2009.

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.

In this article, we consider the first-generation Chevrolet TrailBlazer, produced from 2002 to 2009.

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…

Why does my tail light keep turning off?

If the tail lights turn off, the switch is likely faulty and the light plug assembly might need to be replaced. Sometimes the problem is from faulty wiring. Replacing a wiring harness is a possible DIY job that entails cutting the old connector off, stripping and twisting the wires and connecting the new switch with a splice connector.

What to do when your brake lights won’t turn off?

Have an assistant stand behind the vehicle. Check if the stopper is on the pedal. Press the brake pedal to gain access to the switch, and press button on the brake light switch. If this does not turn the brake lights off or the button fails to depress all the way, the switch might need to be replaced.

Where is Terminal 4 on a low beam headlight?

Terminal #4 is the relay output terminal to the low beam headlight fuses #3 & #6. Terminal #5 is switch battery power from the BCM. I do not recommend testing this terminal with a test light. Terminal #6 is continuous battery ground and is terminated at the lower left side of the engine.

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.

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 should the low and high beams be aimed at?

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. If they need to be adjusted, there are screws on the back or top of the housing to allow you to do so.

When did I Buy my 2004 Chevy Trailblazer?

The hard-working TrailBlazer competes enthusiastically against the Ford Explorer and other midsize rivals in passing power, ride comfort and handling prowess. I purchased my 2004 Chevy Trailblazer in August and absolutely loved it. All of a sudden it went completely dead on me.

Is the Chevy Trailblazer a 4 wheel drive car?

On smooth surfaces, the four-wheel-drive TrailBlazer rides similar to a car. Its handling is a bit on the slow side, but the driver benefits from a satisfying steering feel. Interior space is ample in both the front and rear, and passengers occupy seats that are somewhat firm.

When did the Chevrolet TrailBlazer ESC come out?

Head protection air bags available from 2005, standard from 2008. ESC standard from 2006. TrailBlazer EXT’s assets include a comfortable ride, easy accessibility and a third-row seat suitable for adults. However, they are outweighed by a long list of liabilities.

Why are my Chevy Trailblazer lights not working?

Still, headlight problems are no problem with the right information. Whether your Chevy TrailBlazer lights aren’t working, or your Chevy Corvette, the following diagnostic process will help you figure out why your Chevy’s headlights aren’t working.

Why are the headlights not working on my Chevy?

A wiring issue will require a check of wires with a multimeter with the help of your vehicle’s schematics. Only the low-beams or high-beams work: If your headlights both work but only when the low-beams or high-beams are on, the problem is likely with the dimmer switch.

What to do if both side of Your Headlights are not working?

Neither side works: If both headlights are dead, it’s probably not a problem with the bulbs, but it’s worth a check. The most likely scenario is that the fuse is bad. Remove the fuse for the headlights and check it. When a fuse is bad, it’s obvious because the filament will have a gap in it.

What do you need to know about the Chevrolet TrailBlazer?

4 Introduction Instrument Panel Overview Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada- 14400528) – 2021 – CRC – 11/7/19 Introduction 5 1. Air Vents0178. 2. Turn Signal Lever. SeeTurn and Lane-Change Signals0117. IntelliBeam System Button (If Equipped). SeeExterior Lamp Controls0114. 3. Instrument Cluster089.

What kind of seats did Chevy Trailblazer have?

Cloth/Leather choices were Ebony/Light Gray. For 2006-07, the lower option groups were designated by LS, which meant you got cloth seats and no butt-heater option. And more were 2WD. The LT group would net the beautiful leather-covered seats with suede inserts on the fronts with “SS” embroidery.

How to fix no low beam headlight on Chevy Trailblazer?

Chevy Trailblazer no low beam headlight fix. So this is a an aggravating issue! No headlights or low beam lights but the high beams do work? This can be an easy fix. Replacing the HDM or headlight driver module is a common solution and easy to install. These cost about 30.00 off of Amazon or at your friendly local auto parts store.

Where can I find the owner’s manual for the Chevrolet TrailBlazer?

2021 chevrolet.com (U.S.) chevrolet.ca (Canada) Trailblazer Owner’s Manual 2021 Trailblazer Canada My Chevrolet App Download the my.Chevrolet App for full manuals and “how to” videos. The full owner’s manual is located with your vehicle infotainment system, if equipped.

What should I know about driving a trailblazer?

About Driving the Vehicle As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or a crash. Be sure to read the driving guidelines in this manual in the section called “Driving and Operating” and specificallyDriver Behavior0181,Driving Environment0181, andVehicle Design0181.

What to do if there are no headlights or low beam lights?

So this is a an aggravating issue! No headlights or low beam lights but the high beams do work? This can be an easy fix. Replacing the HDM or headlight driver module is a common solution and easy to install. These cost about 30.00 off of Amazon or at your friendly local auto parts store.

Why are my headlights not working in high beam?

If just one bulb fails to work in either high beam mode or low beam mode, it may be the bulb. Most headlight failures that are limited to just high or low beams are related to a relay or the high beam control switch.

How do you turn off headlights at night?

I tried messing with the switch, and when the headlights turn on, it won’t even let you turn the lights off with the switch, after about 3 minutes it will let you turn them off. But after you go back inside for a few, they turn right back on. If it matters, I did get aftermarket light bulbs a couple months ago.

What’s the best way to set a headlight delay?

Turn the switch back to ON, then OFF again. Turn the switch back to the Auto position. Make sure the lights come on. Wait for the amount of time you want the headlights to stay on, then turn the switch back to OFF once more. The headlight delay should now be programmed. The maximum delay you can set is three minutes.

Why do head lights stay on after you turn off the engine?

Your car’s Auto Headlight functionality offers both convenience and safety. The exit delay programmed in means that the lights will stay on after you turn off the engine for a set period of time. You can change how long they stay on to fit your needs. Here’s how to do that:

Where is the fuse block on a Chevy Trailblazer?

Chevrolet Trailbrazer (2003 – 2004) – fuse box diagram Year of production: 2003,2004 Engine Compartment Fuse Block The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle.

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.

How does a headlight switch turn on a high beam?

In the same way that your headlight switch activates a relay to provide power to the headlights, operating your high beam control will generally activate a relay to turn on the high beams. In the case of dual filament headlight capsules, this literally sends power to the high beam filament.

Why are my high intensity discharge ( HID ) headlights not working?

High intensity discharge (HID) headlights can also fail due to other associated components. Neither of the headlights work. The cause: Burned out bulbs, or an issue with power or ground. The fix: Check for power and ground, and fix if necessary. Otherwise, replace the bulbs.

Is there a problem with the Chevy running light?

The Chevy daytime running light problem is a far-reaching one. For more than a decade mechanics have been replacing melted factory installed sockets and bulbs. We’ll also discuss ambient light sensor problems in this article.

What kind of light bulb do I need for my Chevy truck?

If you’re going to use a butt connector we recommend the ones that have a melting, heat shrink to keep out moisture and corrosion. We also recommend the Sylvania long life 3157NA replacement bulbs. Note that on some Chevy trucks they use amber color light housings. On these units the replacement lamp has a clear shell.

Why are the headlights not working on my Chevy Trailblazer?