2006 GMC Envoy Owner's Manual - Page 298

When the StabiliTrak® system is both on and actively controlling the stability of the vehicle, the StabiliTrak® light will blink for the duration of the event. You may also feel or hear the system working. This is normal. The StabiliTrak® disable button is located on the transmission shift handle. The StabiliTrak® system has three modes of operation: STABILITRAK ON, TRACTION CONTROL OFF, and STABILITRAK OFF. STABILITRAK ON -The vehicle will default to STABILITRAK ON every time the driver starts the vehicle. The StabiliTrak® light will be off and no DIC messages will be displayed. TRACTION CONTROL OFF - The driver can modify the engine speed management system by momentarily pressing the StabiliTrak® button on the transmission shift handle. The StabiliTrak® light will come on and TRACTION CONTROL OFF will be displayed. For vehicles without a DIC, the StabiliTrak® indicator light will come on. Momentarily pressing the StabiliTrak® button again will return the system to the STABILITRAK ON mode. STABILITRAK OFF - The driver can turn off StabiliTrak® by pressing the StabiliTrak® button for more than five seconds. The StabiliTrak® light will come on and STABILITRAK OFF will be displayed. For vehicles without a DIC, the StabiliTrak® indicator light will come on. Momentarily pressing the StabiliTrak® button again will return the system to the STABILITRAK ON mode. See StabiliTrak® Off below for more information. The StabiliTrak® system is automatically disabled in 4LO mode and cannot be turned on until the vehicle is switched to 2HI, 4HI, or 4AWD. 4-10