For future reference, here is the is a procedure for
Locking/Unlocking the VSI
The VSI has a feature that enables you to
lock your
power chair to prevent unauthorized use.
To lock the VSI:
1. With the VSI switched on, press and hold the on/off key. After 1 second, the VSI should beep.
2. Release the on/off key.
3. Push the joystick to the full forward position until the VSI beeps.
4. Pull the joystick to the full rearward position until the VSI beeps.
5. Release the joystick. There should be a long beep.
6. The VSI is now locked.
To unlock the VSI:
1. Press the on/off key and power on the VSI. The maximum
speed/profile indicator should ripple up and down.
2. Push the joystick to the full forward position until the VSI beeps.
3. Pull the joystick to the full rearward position until the VSI beeps.
4. Release the joystick. There should be a long beep.
5. The VSI is now unlocked.