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

You can get creative and check the power to a spot on the frame and then switch to the audio continuity test and see if the ground is good. if you dont have power look for a fuse, if you have power and ground you have a problem with the bulb or bulb harness.

Are there any Chevy 2500HD cab lights left?

Only 15 left in stock – order soon. . . Only 13 left in stock – order soon. . . Only 13 left in stock – order soon. . Only 19 left in stock – order soon.

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 kind of brake light switch do I need for my GMC Sierra?

Fixed common cruise control problem. This switch is an exact replacement for the AC Delco brake switch on my 2007 New Body GMC Sierra 1500. I began having problems with the cruise control not engaging, and discovered the well known problem of this switch being the culprit.

What causes brake lights to go out but lower lights work?

If the plunger of the switch does not contact the pedal, check for an adjustment. In rare instances, the brake booster may fail, and the pedal will not rise enough to contact the switch. Pull up on the brake pedal and if the lights go out, switch mis-alignment or pedal position error is the likely cause.

When does the brake light switch show continuity?

Using the wiring diagram, we can determine which leads should have continuity and when. The brake-lamp portion of the switch will show continuity when the brake pedal is depressed. When we release the brake pedal, it returns to the up-position. In this position, the brake light switch changes to an open-circuit.

Is the brake light the same as the emergency light?

On vehicles where the flashers are separate from the brake lights, this will not apply. The emergency flashers often use the same wiring, bulbs and sockets as the brakes. If all lights come on, when the emergency flashers are turned on, this shows the bulbs, wires and sockets are good.

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.

How can I tell if my brake light bulbs are good?

Substitute a known good bulb, from the other side, to verify bulbs that cannot be confirmed otherwise. Inspect sockets closely for signs of discoloration, distortion or corrosion on the contacts. With the brakes depressed, lightly touch the terminals with a voltmeter, to check for voltage.