Sierra 1500

Clicking Noise From Flasher When Turn Signals are Off on GMC Sierra 1500

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: 152,617 (75,000–260,000)
9 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007
20 people reported this problem
Viewing 1 - 3 of 3 comments
With ignition switch in the run position, either sitting still or moving makes no difference. does not do it continually but will sometimes last for over 15 min and then stops does return but not always. But the noise is always the same.
It would click constantly went away on its own after operating tuen signal repeatedly will llok change switch when reaccures