Why are my brake lights not working on my 1997 Chevy?

Pull the plastic cap off the fuse chassis and you’ll see a square relay fuse switch and replace it for the brakes. It’s only $13 bucks and is the predominant issue with 1997 Chevy Trucks and the brakes not working especially if you reverse and blinker lights do work. Was this answer helpful? Its the taillight circuit board or a broken wire.

Why are the rear lights on my car not working?

The most common reason rear lights of any kind will fail is rotted wires. They run through wire shroud from front to back along the inside of the frame to the left tail light. Running this way leaves them exposed to the elements. Check along the run for rotted, broken or degraded wire.

Why are the rear lights on my 91 k1500 not working?

I had the same problem on my 91 K1500. The most common reason rear lights of any kind will fail is rotted wires. They run through wire shroud from front to back along the inside of the frame to the left tail light. Running this way leaves them exposed to the elements.

What to do when none of the brake lights work?

None of the Brake Lights Work When none of the brake lights work, you need to concentrate on those components or devices that may affect the whole circuit: This includes the fuse, brake light switch, turn light switch (on some vehicle models), and the part of the circuit feeding current to the brake light circuit.

Why are the brake lights not working but the tail lights are?

Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are. Remove the screws from the bulb lens (which you can access through the trunk or see your vehicle repair manual to get the exact location). Push the bulbs and turn them counterclockwise to remove from the socket.

Why does my third brake light not work?

Jim, common problem. If your third brake light works either way but the rear brake lights stop working when the truck is on its a faulty ground wire to the stop lamp relay. Other things use that ground when the key is on so its not strong enough then to activate the armature within the relay.

Why does my abs light not turn off?

Breaks are good and the ABS light is on and will not turn off. This is a defect and open the newer models don’t have this problem. They want to much money for the repair. brakes go to floor when light is OFF , only front brakes when light is on.can still press pedal to floor with some resistance whether light is on or off.

How much does it cost to replace a Chevrolet Astro ABS unit?

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate. The average cost for a Chevrolet Astro ABS Control Module Replacement is between $1,057 -$1,070. Learn More Good news! We found 31 RepairPal Certified shops near you.

What causes a brake light to go out on one side?

Brake lights out on one side. A brake light out on one side only is most often a bulb or socket problem. Try the emergency-flashers and if the lamp still does not light, bulbs or sockets are the very likely cause.

Where are the brake lights on my car?

You will get the fuse panel under the dashboard and the PDC under the hood. The brake light switch is also to be found under the dashboard and check if its plunger touches the brake pedal arm. Any problem with the fuse box and light switch will affect the brake lights.

What to do when your brake lights are not working?

In the situation when brake lights are not working properly, you need to make sure that the power is going through and check the fuse. If the brakes lights are turned on at the same time as turn signal lights, you need to bring it to the mechanics for a check.

The causes for dysfunctional rear lights are: 1 Burnt bulbs 2 Blown out fuse 3 Damaged wiring 4 Electrical issues

What’s the difference between brake and tail lights?

Brake lights are the lights that turn on immediately when drivers press the brakes pedal, while tail lights are only engaged while your parking brake is on or when you turn on the headlights. You can also recognize by the color: The tail lights are normal red, while the brake lights are a more luminous red on most cars.

Where is the fuse on the brake light?

Why does my brake light work when I Turn on the turn signal?

For that to work, the brake wire runs to the turn indicator, so that when you turn on the flashing turn signal, it switches out the brake light signal for that side so that the two signals don’t collide. So don’t just check the brake light. Also check the turn signals.

What should I do if my brake lights dont work?

Solder and shrink tube the new wire to these pigtails and give it a test. If you are unsure of the wire color associated with brake light function, you can access wiring diagrams online, but be warned, chev/gm have been known to change color codes from time to time.

Where are the brake lights on a Chevy Silverado?

Check the Brake Lights Circuit. Start at the fuse box under the hood and make sure the brake lights fuse is not blown, that the terminals are free of corrosion and that the connections are tight. Then check the brake light switch on the bake pedal arm. Back probe the switch terminals with a test light.

What should I do if my brake light wont turn on?

Only one of the switch terminals should turn on the test light. When you depress the brake pedal, both switch terminals should turn on the test light. If only one of the wires turns on the test light, unplug the switch and jump the two connections at the connector.

Where do the brake lights go in a car?

The way those taillights work theres a white wire under dash on the column that white wire is for brake light. So the way the brake lights work they go through a relay and through blinker switch.

How do you turn on the brake light on a Chevy Silverado?

Back probe the switch terminals with a test light. Only one of the switch terminals should turn on the test light. When you depress the brake pedal, both switch terminals should turn on the test light. If only one of the wires turns on the test light, unplug the switch and jump the two connections at the connector.

Why does the brake warning light keep glowing?

Naturally, the first step is to consider the obvious reasons why that dashboard warning light keeps glowing. The most obvious culprit is the switch located immediately under the parking brake pedal. If this malfunctions, the warning light may glow even if the brake has been released.

Is the emergency brake light always on on a Chevy truck?

There are three brightness levels of the dash brake indicator light on RWAL equipped trucks. Watch the light very closely and apply the parking brake. Did the light get brighter?

How do you turn off the brake light on a Chevy Silverado?

The only way to turn the brake light off is to restore proper line pressure to both brake circuits when the pedal is pushed. If your Silverado is having trouble stopping, or noticeably leaking fluid, don’t drive it. Just have it towed to a mechanic.

What is the diagnostic code for a Chevy check engine light?

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. Manufacturer Specific Codes P0342Camshaft Position Sensor A Bank 1 Low Input – Related Information P1031HO2S Heater Current Monitor Control Circuit Sensors 1

Why are the brake lights on my Chevy not working?

All the other lights work and I should also mention the brake light on the cab is working, the ones in the housing with the reverse light and blinker are the brake lights not working. every light is working, the turn signals, the back-up lights, the tail lights. The only thing not working is the brake lights.

Where are the 3rd brake lights on a Chevy 1500?

The 3rd brake light is on a seperate circuit from the brake lights . Test for power at the brake switch.Orange is 1 and white is the other,they are next to each on the switch.If that checks out try fiddling with the hazards and turnsinals since the brake light power flow goes form the brake switch to the turnsignals.

How to clear service engine soon light 1990 to 2002 Chevy?

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Where is the brake light switch on a Chevy Silverado?

The brake light switch is on the top of the brake pedal. Use a test light to see if you have power on both sides once the pedal is depressed (orange wire) Here are guides to help you get the job done. Here is a wiring diagram to help (below) Please let us know what you find. helpful?

Where are the brake lights on a Chevy C / K 1500?

There is a break light relay I think down under drivers side, or under the hood in the fuse box. Blinkers are working so the circuit is good. 32 people found this helpful. Thanks Rowefast, it was the brake light relay.

What should I do if my brake light is not on?

Before you replace the turn signal switch assembly, be sure the hazard switch is fully turned off and is not stuck midway between on and off. To verify this, check for 12 volts on the white wire, (blue arrow), at the signal switch connector when the brake pedal is pressed.

Where are the brake lights on a C / K 1500?

There is a switch. I think on most C/K 1500/2500 it is on the brake pedal arm or the arm hits it. It is $5-$10; you might take ALL your truck data to the auto parts store, buy a new switch, then look for the same thing around the brake arm or under the hood. There’s a fuse. Find the fusebox and look for “brake”. The Owner’s Manual may have clues.

Is it dangerous to drive with brake lights not working?

Driving at night with either brake lights or tail lights not working is dangerous for you and other drivers on the road. It takes a long time to notice when the brake lights not working but tail lights are or vice versa. It is so because you won’t know what is happening in the backside while driving until someone points it out.

To verify this, check for 12 volts on the white wire, (blue arrow), at the signal switch connector when the brake pedal is pressed. Next, check on the yellow or dark green wires and you’ll find it’s not there. helpful?

How to fix no brake lights Chevy Trailblazer?

Chevy Trailblazer- No Brake Lights! It’s an easy fix.. – YouTube 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.

The way those taillights work theres a white wire under dash on the column that white wire is for brake light. So the way the brake lights work they go through a relay and through blinker switch.

What to do if your brake light does not work?

If the turn signal switch is not working properly, your brake light can also not work. Find the wire that connects the brake light and the turn signal switch and replace it. Chances are that this action would solve your problem. If not, then you have no other choice but to visit a mechanic or an electrician.

Why are the brake lights on my 1996 Chevy Silverado not working?

Brake lights on 1996 C1500 stopped working, to include the above cab light as well. Checked and I have no power to the lights (removed left brake light housing and checked continuity). I’ve checked all the fuses. The #1 location 20amp fuse for aux/haz keeps blowing. If I put in a new fuze and turn on the hazard lights it blows.

Are there no brake lights, no hazard lights?

All fuses check out ok. Push in hazard no noise no blinking lights. No brake lights either. Almost positive the stop circuit and hazard circuit are fed from the same fuse. If you have on or the other, it could be a flasher or brake switch, but it’s not.

Are there any brake lights on my plow truck?

89 K1500 no brake lights, no hazard lights? Yesterday I lost the brake lights and hazard lights dont come on when hazard button pushed in to my ole plow truck. No clicking sounds from hazard like it used to. The turn signals still work and the both rear running lights still work. Where do I start looking? Thanks. Have you checked all the fuses?

Why are the blinkers on my car not working?

Blinkers are working so the circuit is good. 32 people found this helpful. Thanks Rowefast, it was the brake light relay. Replaced it and they work fine 13 people found this helpful.

Where are the brake lights on a Chevy Tahoe?

The most common location is the brake light switch . The good news is they are inexpensive and easy to replace. Your Tahoe’s brake light switch is under the brake pedal. It ALWAYS should have power running to it, even if the key is off.

What kind of brake lights work on a 1998 GMC Seirra?

1998 gmc seirra brake lights turn signals and reverse light all work. Marker lights do not work. Brake light only with with head ligh switch off. I’ve cleaned and replaced all grounds changed the whole rear harness replaced bulbs boards does anyone have any ideas?

Why does my hazard light not work on my 1997 Chevy S10?

I have 1997 Chevy s10 brake light and hazard light won’t work. Turn Signal works and I change the turn signal switch and brake switch. I checked the ground around under bed. It looked good and I cleaned. So I was wander what else I could check.

Where is the brake light switch on my car?

Fuse Box and Light Switch. You have to find the fuse box or the power distribution center (PDC). You will get the fuse panel under the dashboard and the PDC under the hood. The brake light switch is also to be found under the dashboard and check if its plunger touches the brake pedal arm.

Why is the warning light on my Chevy c2500 not working?

The most obvious culprit is the switch located immediately under the parking brake pedal. If this malfunctions, the warning light may glow even if the brake has been released. Check this first and rule it out as a possible cause. This is a known issue on Chevy C1500 pickup trucks equipped with rear-wheel anti-lock (RWAL) brake systems.

Why does the emergency brake light stay on in my Chevy C1500 pickup?

Why Does the Emergency Brake Light Stay on in My Chevy C1500 Pickup? Vincent Ciulla is a certified master automotive technician who has diagnosed and repaired light trucks, domestic and foreign cars, and diesel engines, for more than three decades.

Why do I have spongy brake pedals on my Chevy Silverado?

If your truck has an antilock brake module in it, and that ABS module has air bubbles in it, you will have spongy squishy brake pedal feel even if your ABS system isn’t working. In my case, the brakes were so bad that the brake warning light came on.

Underneath the dashboard there is a switch that the brake pedal presses into. When you press the brakes this switch is activated and the brake lights turn on. When you take your foot off the brake, it presses this switch in and the brake lights turn off.

What to do if your brake lights are stuck?

The easiest way to diagnose brake lights that are stuck on is to unplug the wiring harness to the brake pedal switch. If the brake lights turn off, you know that the switch is bad. If the brake lights stay on, you’ll need to find the wiring problem.

Why does my brake light only work on one side?

Since the problem is only on one side, you can rule out the fuse and other parts of the circuit that are shared by both bulbs. I would look closely at the connector for the nonfunctional bulb, as it may be damaged or corroded. If the bulb looks OK, you’ll want to test for power and ground at the bulb.

There are three brightness levels of the dash brake indicator light on RWAL equipped trucks. Watch the light very closely and apply the parking brake. Did the light get brighter?

How can I tell if my brake lights are blown?

Usually, you can tell if the fuse is blown by looking at the fuse element through the clear plastic box. However, if you need to confirm that the fuse is still good, you can check it using a digital multimeter. Set your multimeter to Continuity, or to a low setting in the Ohms scale. Touch each fuse connector with a multimeter lead.

What to do if there are no brake lights?

Cut repair costs, not quality. Here is some info for you. Fuse No.1 is for your brake lights and your hazard lights. If no lights after fuse, if found blown, is replaced check your light globes. If nothing works check that the fuse hasn’t blown again. Fuse 16 is for the turn lights.

What is fuse No.1 for brake lights?

Here is some info for you. Fuse No.1 is for your brake lights and your hazard lights. If no lights after fuse, if found blown, is replaced check your light globes. If nothing works check that the fuse hasn’t blown again. Fuse 16 is for the turn lights.

How can I tell if my Tahoe brake lights are working?

You can test whether or not your Tahoe’s brake lights are working all by yourself. Just back up really close to the garage door and push the pedal. You should be able to see the brake lights illuminating the door. If even one of them comes on, you know that the brake light fuse isn’t blown. We’ll go into more depth on that below.

Why are the brake lights not working on my Chevy Tahoe?

Brake lights are one of the most critical safety features that your Chevy Tahoe has. They let other drivers know when you are slowing down, and that they need to slow down too. If your brake lights aren’t working, you’re way more likely to get rear ended than normal.

Why does my brake light only come on when I press the brake pedal?

You’ll feel a loss of pressure that manifests itself in the form of a “mushy” brake pedal. If the brake light is only coming on when you push the brakes, that’s a definite indication that the pressure in the brake system is too low. Either the brakes need bled, or there is a leak.

Why are the brake lights on my Chevy 1500 not working?

I have a 1994 Chevy 1500. Brake lights are not working. I replaced the bulbs and the brake light switch. All the other Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.

Are there brake lights on a 1989 Chevy Silverado?

1989 4.3 liter S10 Blazer – no brake lights, no rear blinker on both sdes, hazards do not work. Tail lights work. Footnote: blinkers and hazard lights DO FUNTION PROPERLY IN FRONT … read more I have a 1983 chevy silverado 3/4 ton and a problem with my tail lights.

What kind of brake lights are not working?

I have a 1994 Chevy 1500. Brake lights are not working. I… i have a 1994 Chevy… i have a 1994 Chevy 1500. Brake lights are not working. I replaced the bulbs and the brake light switch.

What happens if your brake lights are not working?

If any of them does not work, other drivers behind you won’t see if you are moving or not. It can cause severe accidents, especially on dark streets or during heavy rain and snow. The cops will also flag you if they see you are during without functioning lights.

How long does it take to replace a brake light bulb?

How long does it take to fix a brake light? 1 hour. This is the maximum time for brake light bulb replacement since it is not complicated at all. The process should be around 40 to 60 minutes to complete.

Is it illegal to drive without a brake light?

First of all, you will get pulled over and be fined by a police officer since it is definitely illegal to drive without a working brake light. Second of all, other drivers cannot see you very well in the dark. Without brake lights, it is impossible for them to know whether you are stopping or not, so accidents on the road are very likely.

What is the fuse diagram for a Chevy S-10 Blazer?

Diagram (1985-1994) № A Circuit Protected 9 15 1988-1994: Rear/Four Wheel Anti-Lock Bra 10 25 Heating & A/C 11 30 Circuit Breaker: Power Windows 12 10 1993-1994: Daytime Running Lights

When to replace a fuse on a blazer?

Replace the fuse as soon as possible. Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged. Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.

Where are the brake lights on a Chevy Express?

You need to do some electrical testing. Your brake lights and tail lights are powered by the body control module. there is a park light relay and fuses for the park lights under the drivers seat. Check the Rt rear park lamp fuse.

Is the emergency brake light always on on a Chevy Silverado?

1988 chevy silverado The light on my dash for the e-brake is always on but the brake is not engaged. It has been like this since I bought the truck.

What are the symptoms of a bad brake light switch?

The most common symptom of a faulty brake light switch is when brake lights don’t come on or stay on all the time. A faulty brake light switch can cause many problems. If a switch is bad, the brake lights won’t operate and the transmission shifter will not come out of “Park” position.

Why are the stoplights on my 1994 Chevy k1500 not working?

This 1994 Chevrolet K1500 pickup came in with the very unusual complaint that the stoplights would not work with the ignition on. I checked the brake light operation and sure enough the stoplights worked with the key off but as soon as the key was turned on they stopped.

1988 chevy silverado The light on my dash for the e-brake is always on but the brake is not engaged. It has been like this since I bought the truck.

What causes a soft brake pedal on a Chevy?

Soft or Spongy Brake Pedal: Too much air in the system due to improper bleeding is usually the cause of this problem. However, it can also be due to fluid loss or a low fluid level. Bleed the brake lines as recommended by Chevy to fix this. You could also have a ballooning brake hose when the brakes are applied.

Why does my brake light not work with the key off?

I checked the brake light operation and sure enough the stoplights worked with the key off but as soon as the key was turned on they stopped. I did notice that the CHMSL (center high mounted stop light) did not work at all.

Where is the brake light switch on a car?

When the brake pedal is pressed, it closes the switch, and the current flows through the wiring to the brake lights. This turns on the rear brake lights. The brake light switch can also be located on the master cylinder. Hydraulic pressure from the master cylinder brake light switch system can close the switch to turn on the brake lights.

What was the wiring diagram for a 1991 Chevy Silverado?

1991 Chevy Truck Wiring Diagram – 1991 chevy s10 truck wiring diagram, 1991 chevy silverado engine wiring diagram, 1991 chevy silverado radio wiring diagram, Every electrical arrangement consists of various different parts. Each part should be set and linked to different parts in specific manner.

How to fix Chevy S10 / Blazer light problem?

Chevrolet S10 / Blazer light problem fix! How to fix headlights, tail lights or dash lights 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.

Where is the emergency brake light on a 1987 Sonoma?

1987 S10 Sonoma: The emergency brake warning light (which says “BRAKE”) on the instrument panel stays on after the key is turned, even if the emergency brake is relased – and even after the tan wire is disconnected from the emergency brake warming switch, which is on the drivers side of the passenger compartment under the dash.

Why are my brake and turn signal lights not working?

Having issues with your taillights, brake and turn signal lights or reverse lights? All issues are covered here: fuses, bulbs, bad grounds, broken, burnt or pitched wires and bad connections. Keep your patience, watch the video and we can find it and fix it. Loading…

What makes the emergency brake light go off?

If I reconnect the wire and get the brake’s working properly and press on the brake pedal hard, it should reset the warning switch and the light will go off. Do you have Rear ABS?

How can you tell if your brake light bulb is bad?

Once the socket has been removed it will expose the bulb which may have a burned mark or be light blue in color which indicates a leak in the glass. In either case the bulb is no good. Grasp the bad bulb and pull it from the light socket. Some bulbs you will need to push down and twist counterclockwise.

Why are my turn signals and brake lights not working?

– CarGurus rear turn signals and brake lights don’t work. no power in yellow wire all the way to the firewall. everything under dash works right, looks right, indicator lights work and front lights work fine. No they don’t. 13 people found this helpful. Thank you so much! It was broken wires in the steering column.

What’s the power at the brake light switch?

BUT, when I check for power at the brake light light switch, power is on one side of switch, then I press pedal down, power on other side. The Orange wire on right that works the brake/blink light has power and does it all as i said before.

Why are the tail lights on my Chevy 1500 not working?

My 1994 chevy 1500 brake lights, head lights, front parking lights and front and rear turn signals work……TAIL LIGHTS do NOT work…..have checked fuses and bulbs…..What could the problem be??? If you have checked to be sure there is 12V to the lights check further to be sure there is a solid ground path. 42 people found this helpful.

How much does a new brake light bulb cost?

It is always a minimal cost for replacing the brake light bulb. A bulb costs from $5 to $10 and the charging process costs $20, so the maximum price will be around $30. How much does it cost to rewire brake lights?

Where is the brake light switch on a 1998 Silverado?

The brake light switch is on the arm from the brake pedal to the brake booster (under the hood). It is held in place by a snap clip that is nearly impossible to get off, so don’t. Buy your switch and a new snap clip and then take a large screwdriver and shove it between the top of brake petal and the switch.

Why are there no brake lights on my Dodge Ram?

The brake light switch can wear out, which translates into no brake lights on your Dodge Ram. If the bulbs as well as the connections are good and the wires are properly grounded, replace the switch. You will find it under the brake pedal.

Why are the lights on my truck not working?

These problems range from simple things like loose bulbs and corroded sockets to a more complex issue such as faulty wiring. It’s especially perplexing, for example, if the lights on the right side of the truck work but those on the left side don’t, or if one taillight works but the other doesn’t.

If your brake lights do not work, check the bulbs, fuses, and brake light control switch. Those are the top 3 reasons that brake lights often do not work based on our experience.

Why are the brake lights not working on my GMC Yukon?

If your Yukon’s brake light switch checked out ok, and there are no brake lights illuminating at all, inspect the wiring harness going from the brake switch to the bulbs themselves. There could be an issue with frayed wiring, wiring that has lost its ground, or a short/open situation.

What happens if you have a bad brake light switch?

The brake light switch on modern vehicles is no longer a simple switch used to turn on the brake lights. A bad brake light switch, for example, can trigger the ABS and traction control lights, but it can also prevent engine start or even transmission shifting. In this article, we go over the symptoms of a bad brake light switch and test them.

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.

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.

What to do if your Chevy running light is out?

Nevertheless, owners that notice that a daytime running light is out will often have to do more than replace the 3157 part number bulb. Here we’ll talk about what it takes to get the job done so you won’t have to replace them over and over. A quick note about testing the Chevy daytime running light.

What to do if your brake light switch is not working?

If there is no voltage at the brake switch, the fuse bight be blown. See how to check a fuse. In some cars, a brake light switch may contain a pair of switches inside. Both will need to be tested. See the service manual for your car for the correct procedure.

What to do if your brake light won’t turn off?

Close the reservoir and keep on checking on the brake fluid level regularly to prevent such problems. Find out if there are signs of external leaks. this can be detected by fluid drops on the bolts near the master cylinder booster as well as on the floor where the car is packed.

Why is my anti lock brake light still on?

If you know your car’s anti-lock brake system is in good condition and the light is still on, there are some steps you can take to reset the light. The problem most likely lies in the car’s central computer or ABS sensor, but it can also be from something else in the brake or electrical system.

Why are my abs and brake lights not working?

This is how I fixed my intermittent ABS and Brake dash lights on my Chevrolet blazer with the Kelsey-Hayes EBCM module, with out spending 1500 bucks on a new EBCM.. You may have code C0265 “Electronic Brake Control Module Motor Relay Circuit.” The fault is usually due to broken solder joints on the circuit board.

Where is the brake light on my car?

To correct the problem, locate it toward the back of the engine bay on the driver’s side. Check the marking on the side that indicates whether there is need to add a fresh supply of brake fluid.

Why are my tail lights not working but brake lights are working?

Burnt out light bulbs – The other reason your tail lights are not working but your headlights are maybe a blown bulb. When the filament inside the bulb breaks it cannot illuminate the gas enclosed within the glass cover. This burnt-out bulb does not affect the circuitry of the light system and it continues to function normally.

Why are my brake lights not working on my 1997 Chevy?