2007 GMC Acadia Owner's Manual - Page 505

Additional Required Services (cont'd) Service and Miles (Kilometers) Replace engine air cleaner filter. See Engine Air Cleaner/Filter on page 402. Change automatic transmission fluid (severe service). See footnote (h). Change automatic transmission fluid (normal service). Replace spark plugs and inspect spark plug wires. An Emission Control Service. Engine cooling system service (or every five years, whichever occurs first). An Emission Control Service. See footnote (i). Inspect engine accessory drive belt. An Emission Control Service. See footnote (k). 25,000 (40 000) 50,000 (80 000) • • 75,000 (120 000) 100,000 (160 000 125,000 (200 000) 150,000 (240 000) • • • • 505