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The 2007 Buick LaCrosse requires Dexron VI Transmission Fluid with a capacity of around 4.5 quarts. Like oil, transmission fluid acts as a lubricant to protect the transmission's parts from heat damage. The typical cost of a transmission fluid change for Your LaCrosse ranges between $50 and $70 for labor and about $90 for parts. It is recommended to have the transmission fluid replaced every 50,000 to 60,000 miles. Signs that indicate the need for a fluid change include grinding noises from the transmission, difficulty shifting gears, slipping during gear changes, sudden surges, and delayed movement after putting the vehicle in gear.
In a 2007 Buick LaCrosse, you'll need 13.4 quarts of transmission fluid for it to function properly.