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The 2005 Buick LaCrosse has a coolant capacity of 11.6 quarts. To change the coolant, start by opening the hood and locating the radiator at the front of the engine compartment, with a clear or black plastic reservoir attached. This reservoir has a drain plug, fill plug, and dipstick. You can check the coolant level and add more if needed. For a thorough flush, open the drain plug and let the coolant flow into a bucket. Adding water can aid in the flushing process. Once the water runs clear, close the drain plug, refill the reservoir to the designated level marked by the dipstick, and replace the cap.
The coolant capacity for the 2005 Buick Lacrosse is 11.6 quarts.