Rear break lights and blinkers on a 2000 Denali

Asked by Mar 02, 2017 at 09:25 PM about the 2000 GMC Yukon Denali 4WD

Question type: Maintenance & Repair

I have a 2000 Denali my rear brake lights and
blinkers do not work but they work on the
front and my tail lights work I done change
the multifunction switch and it still won't
work what could it be

8 Answers


Try changing the bulbs.

1 of 1 people found this helpful.

Thanks I did they all new still nothing


Then follow the wiring from the rear tail light lens back to a plugin, there may be one on both sides. Should have something to test for power at the connector like a test light. A lot of times these connectors loose contact. See if the problem is there.

Thanks I done that all so


Well then your killing me Is there a circuit board in the tail light lens? Those go bad.

Lol sorry man I swopped out one hole lends thinking that may work too lol it's got me puzzled


But you have power back there to the plugin? Look for and check and clean up ground wires.

Check and check Grrrr nothing seams to be working

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