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Dan, Technician
Category: GM
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Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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GMC Envoy The low beam headlights will not work on my 2003

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The low beam headlights will not work on my 2003 envoy. problem was intermittent now is perminent. High beam works fine as well as all other lights. Any suggestions?

Welcome to JustAnswer, my name is XXXXX XXXXX I'm here to help get your problem resolved. Ask follow up questions, thanks.


The headlight module "Relay 46" under hood is common to fail causing this issue. Replace module/relay and problem should be fixed. You can swap it with the cooling fan relay to see if lights come on, if so replace relay. Let me know if you have questions. Thanks.

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