Donald,

I just looked in SI and for that model and year that is a normal condition. GM calls it "TURNSIGNAL INTERRUPT DESIGN". Years and models using this are as follows, 1998-2001 GMC Jimmy/Envoy 2WD/4WD, and 1998-2004 GMC Sonoma Reg. Cab, Ext. Cab, Crew Ca... Login to read more.