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Clicking Noise From Flasher When Turn Signals are Off on GMC Sierra Denali

Problem Description and Possible Solution

A clicking noise may be noted from the turn signal flasher after the turn signals are switched off.  This is commonly cause by a faulty turn signal switch which will require replacement.

Problem Data
RepairPal Verified
Average mileage: (–)
7 model years affected: 2002, 2003, 2004, 2005, more2006, 2007, 2010
7 people reported this problem