2007 Buick LaCrosse Owner's Manual - Page 210

CHARGING SYSTEM FAILURE This message displays when there is a problem with the generator and battery charging systems. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Stop and turn off the vehicle as soon as it is safe to do so. Have the electrical system checked by your dealer immediately. This message displays and a chime sounds while the ignition is in 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. CHECK GAS CAP This message may display if the fuel cap is not on, or is not fully tightened. The check gas cap light also appears on the instrument panel cluster. See Check Gas Cap Light on page 199. Check the fuel cap to ensure that it is on properly. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn this message off. See Filling the Tank on page 346 for more information. This message displays while the ignition is in 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. 210