1999 Buick LeSabre Owner's Manual - Page 310

yellowblue Short Trip/City Scheduled Maintenance The system won't detect dust in the oil. So if you drive in a dusty area be sure to change your oil every 3,000 miles (5 000 km) or sooner if the CHANGE OIL SOON light comes on. Remember to reset the Oil Life Monitor when the oil has been changed. For more information, see "CHANGE OIL SOON Light" in the Index. + A good time to check your brakes is during tire rotation. See "Brake System Inspection" under "Periodic Maintenance Inspections" in Part C of this schedule. ++ If you drive in a highly corrosive environment, your brake calipers may require additional inspection and service, at every other tire rotation. See "Caliper/Knuckle Maintenance Inspection" under "Periodic Maintenance Inspections" in Part C of this schedule. 7-8