GE SpacemakerXL JVM1533 Owner's Manual page 28

Other features your model may have.
Switch places after 1/2 time
Switch places after 1/2 time
28
Shelf and Reheating
To reheat on 2 levels
OR
To reheat 2 dishes on the lower level:
Multiply reheat time by 1
1
Switch places after 1/2 the time and stir or
2
rearrange food.
/ .
1
2