1996 GMC Sonoma Owner's Manual - Page 109

't Light You have the SHIFT light if you have a manual transmission. This light comes on very briefly as a bulb check when you start the engine. Shifting when the indicator light is on will help you get the best fuel economy. See "Shift Light" i n the Index. Daytime Running Lamps Indicator Light You have this light on the instrument panel. 1-1 :: :( J 0 . 0 SHIFT I t goes on whenever the DRL are on, the ignition is on, the headlamp switch is off and the parking brake is released. 2-61