Heartway Medical Products EV Rider Vita XPress S12E User Manual page 16

Adjustment for Seat Comfort
WARNING
The temperature of scooter surface can increase when the scooter is
exposed to external source of hear (e.g. sunlight)
For any mechanical adjustment on the tiller or on the seat, be aware of
trapping and squeezing of your fingers.
How to remove the seat
Please refer to the following instructions.
1) Press the swivel lever
2) Swivel the seat
3) Pull the seat upward (Two persons are required to remove the seat)
4) Removing the battery and seat from the scooter is allowed before
transporting.