355SERVICING AND MAINTENANCESCHEDULED SERVICING — GASOLINEENGINESYour vehicle is equipped with an automatic oilchange indicator system. The oil changeindicator system will remind you that it is time totake your vehicle in for scheduled maintenance.Based on engine operation conditions, the oilchange indicator message will illuminate. Thismeans that service is required for your vehicle.Operating conditions such as frequentshort-trips, trailer tow, and extremely hot or coldambient temperatures will influence when the“Oil Change Required” message is displayed.Severe Operating Conditions can cause thechange oil message to illuminate as early as3,500 miles (5,600 km) since last reset. Haveyour vehicle serviced as soon as possible,within the next 500 miles (805 km).An authorized dealer will reset the oil changeindicator message after completing thescheduled oil change. If a scheduled oil changeis performed by someone other than yourauthorized dealer, the message can be reset byreferring to the steps described under“Instrument Cluster Display” in “Getting ToKnow Your Instrument Panel”.NOTE:Under no circumstances should oil changeintervals exceed 10,000 miles (16,000 km),12 months or 350 hours of engine run time,whichever comes first. The 350 hours of enginerun or idle time is generally only a concern forfleet customers.Severe Duty All ModelsNOTE:Change Engine Oil at 4,000 miles (6,500 km) or350 hours of engine run time if the vehicle isoperated in a dusty and off road environment oris operated predominantly at idle, or only verylow engine RPM. This type of vehicle use isconsidered Severe Duty.Once A Month Or Before A Long Trip: Check engine oil level. Check windshield washer fluid level. Check tire pressure and look for unusualwear or damage. Rotate tires at the first signof irregular wear, even if it occurs before theoil indicator system turns on. Check the fluid levels of the coolant reservoir,brake master cylinder, and fill as needed. Check function of all interior and exteriorlights.Maintenance PlanRequired MaintenanceRefer to the Maintenance Plan on the followingpages for required maintenance. More frequentmaintenance may be needed in severeconditions, such as dusty areas and very shorttrip driving. In some extreme conditions,additional maintenance not specified in themaintenance schedule may be required.7
