Porsche 911 Carrera Owner's Manual page 208

In order to abort convertible top operation in
the event of danger, immediately release the
rocker switch.
Push the rocker switch forward and hold
without interruption until the convertible top
is in the final position or until the door windows
are in the desired position. The message on
the on-board computer goes out. In case of
danger, release the rocker switch. Convertible
top operation stops.
Please observe the chapter "WARNINGS
ON THE INSTRUMENT PANEL AND THE
ON-BOARD COMPUTER" on page 143.
206
Mobile Roofs
If the convertible top does not lock in the
windshield frame
Open convertible top again, start the engine
and close the convertible top again using
the rocker switch. Assist with the closing
process by grasping the convertible top at the
handhold and pulling it toward the windshield
frame (arrow).
Messages in on-board computer
Rear lid
If the engine compartment lid is open when
activating the convertible top, a message appears
in the on-board computer. The convertible top
cannot be opened.
Close engine compartment lid.
Convertible top status
Please observe the chapter "WARNINGS
ON THE INSTRUMENT PANEL AND THE
ON-BOARD COMPUTER" on page 143.