U just need to adjust the brakes

Kone LCE kdl16s 126 3088
Motor movement [mm] LWD input (mA) Sequential brake dropping warning
Sequential brake dropping is performed at each normal
stopping. Drive has detected movement from motor during
the stopping phase which indicates one single brake does not
produce enough force to hold the car steady.
Adjust brakes according to AS instructions.

Menu 6_61
61 Brake control type
0 = BCK, dual brakes
1 = BCK, dual brakes, voltage reduction Voltage is reduced 2
seconds after brake opening. This must be correctly set or otherwise
brakes can be overheated
2 = BCL, single brake Used only in NA where other brake is
controlled by ADO-N
3 = BCX, dual brakes, configurable voltage Parameter is set
automatically to 3 if BCX is present. Voltage is set to pick value
through parameter 90 and, after 2 seconds voltage is set to hold value
through parameter number 91.