2007 Pontiac G6 Owner's Manual - Page 437

(h) Change automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police, or delivery service. If you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. (i) Drain, flush, and refill cooling system. This service can be complex; you should have your dealer perform this service. See Engine Coolant on page 339 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and filler neck. Pressure test the cooling system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the fluid level checked. Add fluid if needed. (k) If you drive regularly under dusty conditions, inspect the filter at each engine oil change. (l) Change automatic transaxle fluid if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police, or delivery service. If you do not use your vehicle under any of these conditions, the fluid does not require changing. (m) Visually inspect belt for fraying, excessive cracks, or obvious damage. Replace belt if necessary. 437