Shimano Nexus Service Instructions Manual page 6

< Suspension mode select switch >
Left-hand
HARD
SOFT
* Make sure the battery indicator shows at
least 4 blocks. The mark will flash when
switching the suspension. When complete,
the mark will light up. When flashing, the
next mode cannot be switched even if
operating the switch.
Select the desired suspension mode.
When the suspension is set to AUTO, the
suspension switches between H (hard) mode
and S (soft) mode depending on the speed
and the rear gear position.
When the suspension is set to MANU, the
manual mode allows selecting of the
suspension by pressing the "HARD" or "SOFT"
switch.
< Gear shifting mode select switch >
Push
Select the desired riding mode.
When set to L, D or DS, shifting is
automatically performed according to riding
speed. When set to MANU, shifting by the
derailleurs is manually performed when the
shift switches are operated.
(Auto)
(Manual)
Right-hand
Push