Where is coolant plug on a 2007 Buick Lucerne?

On a 2007 Buick Lucerne, the coolant plug is typically located on the engine block, near the lower part of the engine. It may be situated on the passenger side, often near the water pump or thermostat housing. To find it, refer to the vehicle’s service manual for specific diagrams and locations. Always ensure the engine is cool before attempting to access the coolant plug.