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Home >> GMC >> 1998 >> Envoy >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Description & Operation >> Indicator Lights >> Up-Shift (M/T)

Up-Shift (M/T)

LED illuminates to tell driver when to upshift for best fuel economy. PCM/VCM monitors engine speed, load and throttle position for light control. PCM/VCM illuminates LED if parameters are met.