1997 GMC Suburban Owner's Manual - Page 147

Check Gages Light This light will come on briefly when you are starting the engine. Headlamp High-Beam Indicator Light The high-beam indicator is on whenever you use your high-beam headlamps. For more details about high beams, see "Headlamp HighLow Beam Changer" earlier in this section. CHECK GAGES If the light comes on and stays on while you are driving, it could indicate a problem with your vehicle. It could be a problem with your oil pressure, coolant temperature, or some other problem. Check your various gages to see if they are in the warning zones. If they are, have your vehicle servicedright away. Turn Signal and Lane Change Indicator Lights The signal indicator will come on whenever you signal a turn or lane change. See "Turn Signal and Lane Change Indicator" earlier in this section. 2-73