2004 Tahoe Z71 brake lights not working. I replaced the bulbs, fuses, and brake light switch and they still are not working. Any ideas??

brivas
20

Asked by brivas Sep 12, 2012 at 10:10 PM about the 2004 Chevrolet Tahoe Z71 4WD

Question type: Maintenance & Repair

I replaced the bulbs, fuses, and brake light switch and they still are not working.  Any ideas??

10 Answers

Michael McGrail
5,145

Does your Tahoe have the tow package?

brivas
20

Yes, though we've never used it

1 out of 1 people think this is helpful.
Michael McGrail
5,145

Inspect the trailer hook up wires. Make sure the t-plug has not come unhooked. Also, you should have two fuses for brakes. make sure to inspect both.

Best Answer
brivas
20

I replaced three fuses, two for the brake lights and one for the third brake light and cruise control. Can you tell me where the t-plug is? I've never used the towing components. Thanks!

Michael McGrail
5,145

Back track the trailer plug. It will run to a t-plug where it connects to the brake lights and the main harness. Your tail lights run through the t-plug so if it fails.. No brake lights. And it is quite common. The t-plug is usually tucked up behind the bumper (different on every vehicle though). Once you find it, I would just unplug it and connect the tail lights up to the main harness directly. See if that fixes your problem.

Best Answer
Michael McGrail
5,145

Here is a photo to give you an idea what to look for

Michael McGrail
5,145

Additional question.. Do your turn signals and hazard lights work?

brivas
20

Thank you! I will give it a try

1 out of 1 people think this is helpful.
brivas
20

Yes, turn signals and hazards work. Cruise control does not. Symptoms seemed to match bad stop light switch, but replscung it didn't help. The retainer clip is in place, as well.

Michael McGrail
5,145

If there is any fault in the brake light system, the cruise will not work. But the brakes also run through the turn signal switch in your Tahoe from what I see, so since the turn signals are working, then we know it is good.

1 out of 1 people think this is helpful.

Your Answer

Related Questions

Tahoe
Looking for a Used Tahoe in your area?
CarGurus has 32,242 nationwide Tahoe listings starting at $1,795.
ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 220
#2 littlehorn
littlehorn
Reputation 160
#3 tenspeed
tenspeed
Reputation 150
View All

Related Models For Sale

Used GMC Yukon"
334 Great Deals out of 10,767 listings starting at $2,685
Used Chevrolet Suburban"
710 Great Deals out of 18,669 listings starting at $999
Used Cadillac Escalade"
265 Great Deals out of 7,050 listings starting at $1,595
Used Chevrolet Silverado 1500"
1,928 Great Deals out of 173,203 listings starting at $950
Used Ford Expedition"
493 Great Deals out of 16,594 listings starting at $1,995
Used Ford F-150"
2,211 Great Deals out of 183,763 listings starting at $1,000
Used Ford Explorer"
1,124 Great Deals out of 45,389 listings starting at $900
Used Jeep Grand Cherokee"
1,075 Great Deals out of 53,424 listings starting at $995
Used Toyota 4Runner"
316 Great Deals out of 12,334 listings starting at $2,490
Used Chevrolet Avalanche"
333 Great Deals out of 6,081 listings starting at $3,500
Used GMC Yukon XL"
358 Great Deals out of 10,601 listings starting at $2,550
Used Dodge Durango"
349 Great Deals out of 20,474 listings starting at $1,800
Used Toyota Sequoia"
126 Great Deals out of 4,819 listings starting at $3,650

Used Cars For Sale

2015 Chevrolet Tahoe For Sale
6 Great Deals out of 14,277 listings starting at $42,365
2014 Chevrolet Tahoe For Sale
72 Great Deals out of 1,316 listings starting at $31,800
2013 Chevrolet Tahoe For Sale
142 Great Deals out of 2,104 listings starting at $24,995
2012 Chevrolet Tahoe For Sale
48 Great Deals out of 906 listings starting at $21,298
2011 Chevrolet Tahoe For Sale
84 Great Deals out of 1,584 listings starting at $15,950