Question about 2004 GMC Envoy

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2004 Envoy, low beam headlights turn off on their own.

My low beams will turn off, my high beams will work, low beams eventually come back on.

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  • Anonymous Mar 17, 2014

    envoy high beam

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  • GMC Master
  • 1,348 Answers

The daytime running light module is no good.,or the relay is overheating and cutting out and comes back on when cool.get some freeze spray from an electronic supplier and spray the suspect component when it stops working.the -60f will make it appear fast..cheers

Posted on Jun 14, 2009

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Related Questions:

1 Answer

My low beam headlights won't turn on in 2004 gmc envoy


It's the headlamp relay #46. If you want to test it, swap it out with the cooling fan relay #45 and see if your headlights work. If they do you know this is the fix. Found the solution online a couple of years ago and it was spot-on. The part was $45 at autozone at the time.

Aug 12, 2012 | 2004 GMC Envoy

1 Answer

Change 04 envoy bulb


Headlight Replacement (Envoy)

Lift hood, at top of each headlight assembly look for two L-shaped tabs. Pull these tabs straight up, this will release the headlight assembly. Lift assembly forward to gain access to rear of assembly. There two rubber caps, the top one is for access to the low beam and the bottom for the high beam bulbs. Remove the appropriate cap, grasp bulb socket and turn CCW to release. Unplug bulb from socket by releasing catch on side of socket, install new bulb, DO NOT touch bulb glass with fingers. Reverse steps to re-assemble.

Jun 18, 2012 | 2004 GMC Envoy

1 Answer

2004 envoy xuv low beams dont work switched fuses 45 and 46 still nothing any ideas


Other possibilities are; the bulbs themselves, burnt or corroded bulb sockets, or a bad headlight selector switch.

Dec 11, 2011 | 2004 GMC Envoy

1 Answer

Replaced the headlights and it seems as though the high beams are not working right. They are on but not right, when you turn on the bright lights should both the low and high beam bulls be on?


Depends on model, most of GM products now have seperate beams for low and high, and some high beams require a different headlight for proper brightness.

Oct 28, 2011 | 2004 GMC Envoy

1 Answer

Both low beam headlights will not come on...high beam working fine


check the bulbs the low beam elements may be blown

Feb 02, 2011 | 2004 GMC Envoy

1 Answer

Headlights went out. Replaced bulbs and switch and still lights don't work. Fog lights and high beams work? What else can work?


If high beams work and low beams do not, then it is probably the high/low relay. It is part number 15016745 and has four prongs. To test if your relay has gone bad locate the relay in your fuse box. There will be two of these relays located next to each other. One controls the low beam headlights and the other the cooling fan. Swap the relays and check your low beam headlights. If the low beams work you have a bad relay.

Sep 20, 2010 | 2006 GMC Envoy

1 Answer

Need to replace low beam bulbs in 2004 GMC envoy. Help?


Lift hood, at top of each headlight assembly look for two L-shaped tabs. Pull these tabs straight up, this will release the headlight assembly. Lift assembly forward to gain access to rear of assembly. There two rubber caps, the top one is for access to the low beam and the bottom for the high beam bulbs. Remove the appropriate cap, grasp bulb socket and turn CCW to release. Unplug bulb from socket by releasing catch on side of socket, install new bulb, DO NOT touch bulb glass with fingers. Reverse steps to re-assemble.

Aug 26, 2010 | 2004 GMC Envoy

1 Answer

Both low bean headlights do not turn on high beams


Replace Relay #46 in the underhood fuse panel.

Aug 25, 2010 | 2003 GMC Envoy

1 Answer

Low beam headlights not working on 2004 Pontiac Montana extended


You headlight lamp have a diffuser mechanism which allows it to flip between the hight beam and low beam feature of the bulb. In fact, you high beam will function even if the low beam is not working.

I would recommend the purchase of the new headlight lamp. It would cost you you any where from $15.00 per unit to get a replacement lamp

Dec 26, 2008 | 2004 Pontiac Montana

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