Question about 2002 GMC Yukon Denali

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2002 gmc Yukon denali Left head light only works on Hi-beam. Also left licenses plate light not working as well

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I would try replacing those bulbs,the headlights are dual filiment and can work on just high beam and not on low beam,so start there and replace your bulbs

Posted on Sep 30, 2010

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Related Questions:

1 Answer

Which fuse is for the licenses plate light. I've changed the bulb but it still doesn't work


licence plate bulb is on the same circuit as the tail lights
if you have tail lights but no number plate light ,then problem is in the bulb holder or wiring

Nov 11, 2015 | 2001 GMC Yukon Denali

1 Answer

Remove and replace blown license plate bulb 2006 gmc yukon


ensure the head lamp is in off posiition..remove the lens from the bulb assy,and remove the bulb and replace.

Jul 02, 2010 | 2006 GMC Yukon Denali

1 Answer

Driver side head light does not work...the high beam does


Change the bulb. High and low beams are separate bulbs located in the headlight housing. Im not sure on the 07 but the earlier design Yukon (02)you have to pull out a pin located under the hood on the top of the light housing in order to remove it.

Jun 05, 2010 | 2007 GMC Yukon Denali

1 Answer

Drivers side tail light lighting up at night when head lights are on but break light not working on that side. passenger side not lighting up when head lights are on but break light working on that side....


You probably already know this, however the GMC 2002 Yukon Denali uses the Wagner 3157 (or equivalent) dual element bulb. The running light uses one element whereas the brake & blinker share the other element that burns brighter.

Check to ensure the correct bulbs are being used. Then check all wire harness connections. Since the blinkers function, then it sounds like the connections are good.

It really sounds like there is a bulb issue, so check that first, then let us know the results.

Mar 11, 2010 | 2002 GMC Yukon Denali

2 Answers

I have a 2002 GMC Denali and my low head lamps both went out at the same time, the high beams work and lows do not? Any ideas?


this strongly sounds like a body control module(bcm). everything is controlled through computer systems, this just happens to be one of the units that controls headlamp operation. prior to replacement of an expensive component, check your power distribution box under the hood on the drivers side. it is aslo possible to have a loose connection under the fuse or relay. check these items first. cheers

Jan 20, 2010 | 2002 GMC Yukon Denali

2 Answers

Need color codes for radio in 2002 gmc yukon denali


2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

May 23, 2009 | 2002 GMC Yukon Denali

1 Answer

Change lisence plate lights


Look where the wires go to the lights underneath. Grab the white rubber piece that goes into the light housing and twist 1/4 turn. Then pull. The bulb just pushes into its terminal in the white rubber.

May 13, 2009 | 2002 GMC Yukon Denali

1 Answer

2004 GMC Yukon Denali XL - left side Headlamp issue


plug may not be completely installed? wire the low and high to each other.

Jan 25, 2009 | 2004 GMC Sierra Denali

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