Ferrari 2012 F12 Berlinetta Owner's Manual page 229

If the vehicle needs to be moved but the electric parking brake
cannot be deactivated because the battery is flat or there is a failure
in the electrical system that controls it, the emergency release
procedure described below must be performed.
• Take wrench for EPB emergency release out of the tool bag.
A
Warning
Wrench A may only be used by specialised workshop
technicians, as indicated on label C on the tool kit.
• Using the special rectangular slot
kit (indicated by a label), place the wrench in the EPB release
housing (in the lower part of the slot, as shown in the figure) and
turn it clockwise: this loosens the parking brake cables.
B on the LH side of the tool
C
Important note
To release the brake completely, the wrench needs to be
turned 50 times and it starts to be released after approximately
20 turns.
Once the electric parking brake has been manually released, the
EPB node records a failure at the next key-on and a special symbol
and the following message are displayed on the left TFT display:
"Parking Brake system revision. Go to dealer".
Warning
The parking brake resumes normal operation, but it is important
to go to the nearest workshop to have it calibrated and delete
any errors in the error memory.
Go to a Ferrari Service Centre.
Calibration is necessary for safety reasons.
B
Advice for Emergency Situations
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