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
60

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
6,775

Does your Tahoe have the tow package?

1 out of 1 people think this is helpful.
brivas
60

Yes, though we've never used it

3 out of 3 people think this is helpful.
Michael McGrail
6,775

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
60

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!

1 out of 1 people think this is helpful.
Michael McGrail
6,775

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
6,775

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

Michael McGrail
6,775

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

brivas
60

Thank you! I will give it a try

1 out of 1 people think this is helpful.
brivas
60

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.

1 out of 1 people think this is helpful.
Michael McGrail
6,775

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

Add photo

Related Questions

Tahoe
Looking for a Used Tahoe in your area?
CarGurus has 25,307 nationwide Tahoe listings starting at $1,955.
ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 470
#2 Lester Chatman
Lester Chatman
Reputation 260
#3 FordNut
FordNut
Reputation 220
View All

Related Models For Sale

Used GMC Yukon"
192 Great Deals out of 8,205 listings starting at $2,350
Used Chevrolet Suburban"
281 Great Deals out of 14,273 listings starting at $1,495
Used Cadillac Escalade"
174 Great Deals out of 5,853 listings starting at $3,995
Used Chevrolet Silverado 1500"
1,593 Great Deals out of 138,450 listings starting at $1,500
Used Ford Expedition"
342 Great Deals out of 15,478 listings starting at $2,250
Used Ford Explorer"
778 Great Deals out of 43,516 listings starting at $975
Used Ford F-150"
2,083 Great Deals out of 109,837 listings starting at $1,350
Used Jeep Grand Cherokee"
910 Great Deals out of 56,179 listings starting at $1,400
Used Toyota 4Runner"
251 Great Deals out of 9,940 listings starting at $1,490
Used Dodge Durango"
235 Great Deals out of 18,950 listings starting at $1,000
Used GMC Yukon XL"
137 Great Deals out of 5,350 listings starting at $2,488
Used Toyota Sequoia"
106 Great Deals out of 3,860 listings starting at $2,900
Used Jeep Wrangler"
482 Great Deals out of 43,074 listings starting at $1,800

Used Cars For Sale

2015 Chevrolet Tahoe For Sale
85 Great Deals out of 14,820 listings starting at $38,500
2014 Chevrolet Tahoe For Sale
32 Great Deals out of 579 listings starting at $28,999
2013 Chevrolet Tahoe For Sale
32 Great Deals out of 865 listings starting at $22,900
2012 Chevrolet Tahoe For Sale
19 Great Deals out of 629 listings starting at $11,500