2005 GMC Savana Van Owner's Manual - Page 197

StabiliTrak® System If your vehicle has StabiliTrak®, it combines anti-lock brake, traction and stability control systems and helps the driver maintain directional control of the vehicle in most driving conditions. When you first start your vehicle and begin to drive away, the system performs several diagnostic checks to StabiliTrak® Not Ready Light Off Off Off ensure that it is working properly. You may hear or feel the system working. This is normal and does not mean there is a problem with your vehicle. The system should initialize before the vehicle reaches 20 mph (32 km/h). In some cases, it may take approximately 2 miles (3.2 km) of driving before the system initializes. The following chart describes the StabiliTrak® not ready light and the StabiliTrak® indicator light. Meaning StabiliTrak is enabled, but not active. The traction control is not active. StabiliTrak® is active, or the traction control is active. StabiliTrak® is disabled due to system fault. When on after restarting, the vehicle needs to be serviced. StabiliTrak® is disabled due to system initialization or the driver has disabled with switch. StabiliTrak® is not initialized and not disabled. The traction control is active. ® StabiliTrak® Indicator Light Off Flashing On On Off On Flashing For more information, see StabiliTrak Not Ready Light on page 3-31 and StabiliTrak Indicator Light on page 3-32. 4-9