2006 Pontiac Grand Prix Owner's Manual - Page 206

SERVICE STABILITY SYSTEM This symbol comes on with the SERVICE STABILITY SYSTEM warning message. This message will display only while the ignition is in RUN. A chime will sound for two seconds while this message is displayed. Press the set/reset button to acknowledge this message and to clear it from the screen. This message will continue to display if it has not been acknowledged when the engine is turned off. It will also re-display for three seconds if the message has been acknowledged, but the condition still exists when the engine is turned off. If the condition still exists, the message will re-appear when the engine is turned on. If the vehicle has the StabiliTrak® Plus system, this warning message will appear when it is not functioning properly. A warning light will also appear on the instrument panel cluster. See Traction Control System (TCS) Warning Light on page 3-45 or Enhanced Traction System Warning Light on page 3-45. See StabiliTrak® Plus System on page 4-12 for more information. Have the StabiliTrak® Plus system serviced by your GM dealer as soon as possible. 3-88