Why are the brake lights on my Sierra truck not working?

Why are the brake lights on my Sierra truck not working?

My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking. Running lights are on a separate fuse. This. My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking.

What are the fuses for the trailer lights?

The fuses are for the trailer lights only. The truck’s signals will still work. If you pop the cover off the fuse box under the hood, I believe they are #16 and #17 fuses. One for left, and one for right. Edited July 6, 2016 by LowbanksArcher Yep. The fuses are for the trailer lights only. The truck’s signals will still work.

Why are my trailer brake and turn signals not working?

Now blowing fuses for left rear trailer brake and turn signals in the 2015, in dry weather. We haven’t gone on a fishing-camping trip in the rain yet. But we both have a stockpile of fuses for this year now that we know its the TRUCKS electrical faults.

Where is the fuse block on a GMC Sierra?

The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column. The underhood fuse block in the engine compartment on the driver’s side of the vehicle near the battery. Lift the cover for access to the fuse/relay block.

My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking. Running lights are on a separate fuse. This. My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking.

The fuses are for the trailer lights only. The truck’s signals will still work. If you pop the cover off the fuse box under the hood, I believe they are #16 and #17 fuses. One for left, and one for right. Edited July 6, 2016 by LowbanksArcher Yep. The fuses are for the trailer lights only. The truck’s signals will still work.

Now blowing fuses for left rear trailer brake and turn signals in the 2015, in dry weather. We haven’t gone on a fishing-camping trip in the rain yet. But we both have a stockpile of fuses for this year now that we know its the TRUCKS electrical faults.

Where are the brake lights and left side turn signals?

Your brake lights and turn signals for each side are on one circuit. The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect and test the connector at the rear of your tow vehicle with a circuit tester, like # 40376.

Are there any brake lights on my Silverado?

New to me 2000 Silverado 2500. I purchased to tow my boat. All trailer lights worked correctly when towed with a friends truck last fall. Went to test the lights to the trailer yesterday, and everything works except the trailer brake lights. Running lights work, turn signals work, flashers work.

Are there running lights on a Sierra truck?

Running lights are on a separate fuse. This. My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking. Running lights are on a separate fuse. But the truck lights work fine.

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.

New to me 2000 Silverado 2500. I purchased to tow my boat. All trailer lights worked correctly when towed with a friends truck last fall. Went to test the lights to the trailer yesterday, and everything works except the trailer brake lights. Running lights work, turn signals work, flashers work.

Running lights are on a separate fuse. This. My 15 Sierra popped both left and right signal + brake light fuses recently. There is 1 fuse for each side that does signal and braking. Running lights are on a separate fuse. But the truck lights work fine.

What to do when front brake light doesnt work?

If the front is flashing then you need to check the wiring at the BCM and see if it is sending the signal to the light in the rear. If the Bcm is sending out the signal to flash the light then follow the wiring until you lose the signal to find the open in the circuit. Or, check to make sure you have a good ground at the light socket.

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