2009 Buick LaCrosse Owner's Manual - Page 192

SERVICE THEFT SYSTEM This message displays when there is a problem with the theft-deterrent system programmed in the key. A fault has been detected in the system which means that the system is disabled and it is not protecting the vehicle. The vehicle usually restarts; however, you may want to take the vehicle to your dealer/retailer before turning off the engine. See PASS-Key® III Electronic Immobilizer Operation on page 2-19 for more information. This message displays and a chime sounds only while the ignition is in ON/RUN. Press any of the DIC buttons to acknowledge this message and to clear it from the screen. This message continues to display for two seconds if it has not been acknowledged when the engine is turned off. It also re-displays for two 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 re-appears when the engine is turned on. SERVICE TIRE MONITOR SYSTEM On vehicles with the Tire Pressure Monitor System (TPMS), this message displays if a part on the TPMS is not working properly. The tire pressure light also flashes and then remains on during the same ignition cycle. See Tire Pressure Light on page 3-39. Several conditions may cause this message to appear. See Tire Pressure Monitor Operation on page 5-64 for more information. If the warning comes on and stays on, there may be a problem with the TPMS. See your dealer/retailer. This message displays while the ignition is in ON/RUN. Press any of the DIC buttons to acknowledge this message and to clear it from the screen. This message continues to display for two seconds if it has not been acknowledged when the engine is turned off. It also re-displays for two 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 re-appears when the engine is turned on. 3-70