Brake lights are one of the most an essential safety features that your Chevy Tahoe has. They permit other motorists know once you space slowing down, and that they should slow down too. If your brake lamp aren’t working, you’re means more most likely to obtain rear finished than normal. The good news is that troubleshooting brake lights that aren’t working isn’t too difficult. The many common reason for this is a poor brake light switch.

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You have the right to test even if it is or no your Tahoe’s brake lights space working all by yourself. Just earlier up yes, really close come the garage door and push the pedal. Girlfriend should have the ability to see the brake lights illuminating the door. If even one the them comes on, you recognize that the brake irradiate fuse isn’t blown. We’ll go into much more depth on that below.

Driving without the brake lights working is simply as unsafe as if her Tahoe’s brake lights to be stuck on.

1. Check the Fuse

If none of the brake lights space working, we room going to follow the circuit native the fuse box earlier to the brake pedal. At some point the strength is not gaining from point A to allude B. We just have actually to discover where the is.

Please keep in mind that tail lights can work also if the brake lights are shed out. That is entirely feasible that every the brake lights melted out in ~ the same time.


The first thing the you must do if every one of the brake lights are not working is check the fuse. It’ll be clearly labeled. The usually says something follow me the present of “stop lamps” or stop. You have the right to pull it and also visually examine it to make sure that that is not broken.

Even if that looks fine, if you have one more fuse that the same amperage, swap it anyway. What works much better is making use of a an easy electrical test light to determine if the circuit works. Wal-Mart and also any components store will keep them in stock, commonly at $10 or less.

Just hook the clip the the light as much as a an excellent ground and also touch the two metal tabs on optimal of the fuse. Over there is no need to pull the fuse because that this. It have to be “hot” on both sides. If it is not, replace the fuse. If that blows more than once, it’s likely that her Tahoe’s wiring harness has been damaged on the way to the brake lights. Make sure to put the exact same size fuse back in

2. Check your Tahoe’s Brake irradiate Switch

Ok, currently we’ve evidenced that there is power going come the brake irradiate circuit, it’s time to figure out whereby in the route from the fuse crate to the brake lamp the strength is lost. The most usual location is thebrake irradiate switch. The great news is they are inexpensive and also easy to replace.

Your Tahoe’s brake irradiate switch is under the brake pedal. It constantly should have power running to it, also if the key is off. We need absolutely need a check light at this point. The video below shows specifically how to perform this.

He has the brake light switch out of the vehicle, which renders it way easier come see. You carry out not have to do this.

Basically, there room two wires, one is alway hot. Once you push the brake pedal down, it sends this power to the brake lights. This is the most most likely failure point.

If your car has cruise control, that may appear as despite there room two brake switches. The various other one is come tell the cruise regulate to rotate off once you push the brake pedal. You may need come consult your manual to determine which one is which. But, together a general rule, the cruise regulate switch will not have power going come it once the an essential is off like the brake light switch does.

3. Check for a poor Ground

If there is a soil wire running to the brake irradiate switch, make sure that that is secured tightly and corrosion free. If you can’t discover the ground cable at all, operation a jumper wire to substitute because that the ground wire.

Now check the brake light switch. If the works, deal with the ground wire.

4. Other Wiring Issues

If your Tahoe’s brake light switch viewed ok, and there room no brake lamp illuminating at all, check the wiring exploit going native the brake move to the bulbs themselves. There might be an worry with frayed wiring, wiring that has actually lost that ground, or a short/open situation.

If you have actually the “third” or committed brake light (the one no in your tail lights), examine the harnessafter castle diverge. You recognize that it has actually power prior to this suggest since the 3rd brake light is still obtaining power.

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Look in the stems (if applicable). Check any type of grounds the harness has in there. Make certain that the harness wasn’t damaged in there. It’s not uncommon for cargo to execute this.

Conclusion: Chevy Tahoe Brake Lights no Coming On

If your Tahoe’s brake lights room not working, it’s most likely going to be brought about by a negative brake light switch. Great luck solving your vehicle!