Chevy Trailblazer Gauges Not Working – How To Fix

By Max Anthony •  Updated: 12/22/22 •  3 min read

Chevy Trailblazer Gauges Not Working

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Important information about the present condition of your car may be found on the gauges on the dash of your Chevy. The gauge cluster contains crucial information that the driver needs to know, such as temperature, speed, and oil pressure. Unfortunately, gauge failure is a typical occurrence. From Chevy TrailBlazers to Camaro pickup trucks, gauges may and do malfunction.

Why Chevy Trailblazer Gauges Are Not Working

There are three potential reasons why the gauges on the instrument cluster of your Chevrolet TrailBlazer aren’t working properly: the gauges’ fuse has blown out, the wire connectors are loose, or the gauges themselves are defective. Any of those problems may be solved quite easily and in less than 30 minutes. You will need to buy a new instrument cluster to replace the damaged one if the gauges are bad, which can be quite expensive.

To make sure a simple blown fuse isn’t the issue, check the fuses for the gauge panel first. After then, make sure the gauges’ lights are still on by checking them. Check all grounding points because a poor ground can occasionally prevent power from reaching the instrument cluster.

Your gauge cluster will probably need to be repaired or replaced if you have checked these places and found nothing. Most frequently, only one gauge will malfunction, and this will probably occur at least once during the lifespan of your car.

Check the wire leading to the gauge first. Any breaks or abrasions? If not, go back to the sending unit and unplug it by following the wire. Check to check whether the gauge responds by turning the ignition key to the “run” position and then grounding the lead on the gauge wire. If the gauge moves, the sending unit or sensor is probably the source of the problem. Check the gauge’s fuse or the panel’s fuse again if the gauge doesn’t move.

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The voltage between the gauge and the ground should then be checked. The circuit between the ignition and the meter is damaged if there is no electricity.

How to Fix Chevy Trailblazer Gauges Not Working

Instrument cluster designs and layouts come in a wide variety. However, a fuse or wiring issue is typically at blame when all of the gauges in a car quit working at once. Finding the fuse for the gauges or instrument cluster is the first step in troubleshooting this problem.

When the ignition key is switched on, power should be present on both sides of the fuse. If you don’t have the necessary auto diagnostic instruments or don’t feel comfortable delving into a diagnostic like this, you can check this using a cheap test light or multimeter or take your car to a repair.

If the fuse is intact, you or your mechanic should check to see if the various gauges have power. This typically involves taking out the instrument cluster, which in some cars can be time-consuming and complicated.

You will likely need to remove some trim pieces and unscrew the cluster at the very least in order to pull it free. If you’re capable of installing a new car radio, the difficulty level here is often comparable, so you can definitely do this one too.

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Max Anthony

Max is a gizmo-savvy guy, who has a tendency to get pulled into the nitty gritty details of technology and cars. He attended UT Austin, where he studied Information Science. He’s married and has three kids, one dog and a GMC truck and a Porsche 911. With a large family, he still finds time to share tips and tricks on cars, trucks and more.

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