2003 Chevrolet Impala Owner's Manual - Page 365

50,000 Miles (83 000 km) ZII Change automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions: - 0 Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 0 Replace engine air cleaner filter.An Emission Control Service. In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher 67,500 Miles (1 12 500 km) 0 Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote @,)(See footnote +.) - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery 75,000 Miles (125 000 km) D Inspect engine air cleaner filter if you are driving in dusty conditions. Replace filter if necessary. An Emission Control Service. (See footnote t.) 0 If €quipped: Replace passenger compartment air filter. If you drive regularly under dusty conditions, the filter may require replacement more often. 0 Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote 6 . (See footnote +.) 2) service. If you do not use your vehicle under any of these conditions, change the fluid and filter at 700,000 miles (166 000 km). 52,500 Miles (87 500 km) 0 Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote @.) (See footnote +.) 60,000 Miles (100 000 km) 0 If €quipped: Replace passenger compartment air filter. If you drive regularly under dusty conditions, the filter may require replacement more often. 82,500 Miles (137 500 km) U Rotate tires. See Tire Inspection and Rotation on page 5-64 for proper rotation pattern and additional information. (See footnote @.) (See footnote +-) 6-8