Sierra 2500 Horn Not Functioning

Asked by Jeff Jun 13, 2016 at 06:07 PM about the 2002 GMC Sierra 2500 4 Dr STD 4WD Extended Cab SB

Question type: Maintenance & Repair

The horn in my 2002 Sierra 2500 was making a
soft, squealing sound when I pushed the button
and now it has stopped working completely. I have
seen some stuff saying that it could be a corroded
contact in the steering wheel or it might be that the
horn is bad. Any help would be greatly appreciated.
Thanks in advance!

1 Answer
41,835

Auto_Centric answered 7 years ago

I've checked enough horns gone bad start there unplug it and apply 12 volts to the horn with the proper device.

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