How do you flush the coolant on a Honda Odyssey?

To flush the coolant on a Honda Odyssey, start by ensuring the engine is cool, then remove the radiator cap. Place a drain pan under the radiator and open the drain valve to let the old coolant flow out. After draining, close the valve, fill the radiator with a mixture of water and coolant flush solution, run the engine until it reaches operating temperature, and then drain again. Finally, refill the system with the appropriate coolant mixture and bleed any air from the system as needed.