Permobil F5 Corpus VS User Manual page 27

Do not move the joystick before, during, or immediately after you turn on
the control system. If you move the joystick during this time, it may generate
a joystick error. If this happens, turn the wheelchair off and then on.
For additional information on how to control your wheelchair, refer to any
other documentation received with your wheelchair or contact your
Permobil dealer.
Turn off the power before you get in or out of the wheelchair or lift the
armrest. Do not use the joystick, footplates, or armrests as support when you
get in or out of the wheelchair.
The first time you drive your wheelchair must be in the presence of a person
who is qualified to ensure that the wheelchair is properly fit for you.
Make sure that your feet are correctly and securely positioned on the
footplates before you drive the wheelchair.
4.1.1 Driving restrictions
The wheelchair consumes a lot of power when you drive up a hill, climb over
obstacles, or drive on rough terrain (for example, sand). Permobil
recommends that you, as far as possible, avoid driving for a long period of
time in these types of conditions.
Wheelchair usage - 27