My 2011 Chevy Silverado low beams are not working everything else works but the low beams and someone please give me a diagnosis thanks.

Did you recently replace the battery or require a jump start?

Headlamps (power relays) are under direct control of the BCM. If there are no CEL/MIL codes and high beams work, then it's most likely a BCM program issue.

Regardless of MIL/CEL, you might try disconnecting the battery ground, wait 10 minutes, reconnect and see if the problem clears.

If the CEL/MIL is active then have ODBII codes read.

Could be headlamp high beam relay located in the under hood fuse/relay box .

http://www.bbbind.com/technical.html
Free wiring diagrams and TSB's for every make and model. Hope it helps you.

Light switch faulty looks like,

HEADLIGHTS NOT WORKING

It can be faulty headlight switch or issue with its wiring. Or its faulty head light fuse.

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To troubleshoot the issue i suggest you few help links with appropriate solution. So you can follow the test and confirm what exact problem is there in your case of headlights not working:-----

Click the link below: -----

All headlights not working?

http://repairhelpcenter.blogspot.com/2012/01/all-headlights-not-working.html

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• Working of Headlight switch?
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• Both headlight bulbs blow together?

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• Car headlight bulbs don't last long?

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2007 Dodge Caliber: Low Beam Headlight Not working

http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html

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2003 Toyota Camry: Headlights Work Intermittently?

http://technoanswers.blogspot.in/2012/04/2003-toyota-camry-headlights-work.html

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Chevy Tahoe: Low Beam Lamps are not working?

http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html

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2001 Chevrolet Tahoe: Headlights not coming ON?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-headlights-not.html

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2004 Dodge Ram: High Beam Light is DIM?

http://technoanswers.blogspot.in/2012/04/2004-dodge-ram-high-beam-light-is-dim.html

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2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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How to Replace a Headlight

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight.html

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How to Replace a Headlight Bulb

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-bulb.html

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How to Replace a Headlight Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-switch.html

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How to Replace a Headlight Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-assembly.html

How to Replace a Park Light Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-park-light-assembly.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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Headlight Assembly Removal On Honda Accord

http://technoanswers.blogspot.in/2012/06/headlight-assembly-removal-on-honda.html

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Honda Headlight Assembly Removal
http://schematicsdiagram.blogspot.in/2012/06/honda-headlight-assembly-removal.html

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How to Replace a Headlight Door

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-door.html

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How to replace HID headlight bulbs for lexus 400h?

http://schematicsdiagram.blogspot.com/2012/01/how-to-replace-hid-headlight-bulbs-for.html

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These will help.

Thanks.

The wiring for the low beams would run not to the ignition, but to the dimmer switch. I don't know what color they are, but sounds like you are at the source of the problem, if the low beams quit when the column is let down. Pull the trim pieces off the steering column and examine the wires going to the dimmer switch. You may see some wiring insulation scraped off. It could be a bad dimmer switch, but check the wiring first.
Good luck.

your dimmer switch is at fault. Its location is on the sheering coluum shaft behind the dash in front of the firewall by the brake pedal area

It is possible both low beams are out and you didn't notice until the second one failed. Have you tried to reset the lights with the dashboard switch?

Headlight switch on dash???

dimmer switch has gone bad need to change your dimmerswitch