Chevrolet 2001 Prizm Owner's Manual page 208

3. Fill the radiator with the proper coolant mixture, up
to the base of the filler neck. See "Engine Coolant"
in the Index for more information about the proper
coolant mixture.
5-16
4. Then fill the coolant recovery tank to the
FULL mark.
5. Put the cap back on the coolant recovery tank,
but leave the radiator pressure cap off.