Flexible System Service (FSS) Indicator

Flexible System Service (FSS) indicator is a wrench symbol that appears in main odometer display area. When wrench symbol is present, main odometer display area will show number of miles until next suggested service. If wrench is accompanied by clock icon, main odometer display will show number of days until next suggested service. FSS indicator will appear for 10 seconds after ignition switch is turned to run position, or while driving when service warning threshold is reached. FSS display can be manually cancelled by pressing "O" button on left side of instrument cluster. Time or miles until next service can be displayed for 10 seconds by pressing "O" button 2 times within one second. If suggested service interval is passed, wrench symbol preceded by a minus sign will blink for 20 seconds and reminder chime will sound when ignition is turned on.

After service is performed, the FSS indicator will need to be reset. C230 model allows for service intervals to be set between 10,000 miles and 16,000 miles, or for 365 to 730 days. C280 and C43 models allow for service intervals to be set between 10,000 miles and 20,000 miles, or for 365 to 730 days. To reset FSS indicator, see PROGRAMMING  .