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

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.

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Average mileage: 179,462 (126,000–260,000)
8 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006
11 people reported this problem
3 people shared problem details
2000 GMC Yukon Denali126,000
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.
1999 GMC Yukon Denali190,000
Replaced turn signal switch
2001 GMC Yukon Denali165,000
non- Denali, but same issue. turn signal clicking noise is constant, even though the turn signals are not on
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