Clicking Noise From Flasher When Turn Signals are Off on GMC Yukon 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: 191,051 (126,000–260,000)
8 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006
13 people reported this problem
Viewing 1 - 4 of 4 comments
The turn signal SOUND or NOISE is constantly will not stop. It is constantly on even though the turn signal is not in either left or right position.
Replaced turn signal switch
Same problem on an SLT not Denali....still need to fix.
non- Denali, but same issue. turn signal clicking noise is constant, even though the turn signals are not on