Pontiac G6 2010 Owner's Manual page 148

4. The hardtop switch is located on the headliner.
To raise the hardtop, pull and hold the switch until the
cycle is complete.
3-42
As the switch is being pulled the hardtop will raise from
the trunk and move into place. The hardtop and
trunk lid will close and latch. If the engine is on, a chime
will sound when the hardtop has raised completely.
The Driver Information Center (DIC) will display the TOP
MOVE COMPLT message to signal the procedure is
complete. See DIC Warnings and Messages on
page 4-42 for more information.