2006 GMC Envoy Owner's Manual - Page 185

StabiliTrak® Indicator Light This warning light should come on briefly when the engine is started. Engine Coolant Temperature Gage During most driving conditions, this light will not come on. If the StabiliTrak® System is actively controlling the stability and/or traction of the vehicle, this light will blink. This is normal. This light will come on if any portion of the system has been manually turned off or a problem is detected in the system. If your vehicle is equipped with a Driver Information Center, a message will appear also, see DIC Warnings and Messages on page 3-54 and StabiliTrak® System on page 4-9 for more information. United States Canada This gage shows the engine coolant temperature. If the gage pointer moves into the red area, it means that your engine coolant has overheated. If you have been operating your vehicle under normal driving conditions, you should pull off the road, stop your vehicle and turn off the engine as soon as possible. See Engine Overheating on page 5-28 for more information. 3-41