Did my bench test yesterday night ... and I did discover how this GM set up works:
When you enter in set up mode, the first click it is already done, and the red light flash once at the beginning automatically.
So for enter the menu #3, max brake, it is needed just to keep pressing on the power on, and press again the button only twice (not 3 times as said in the fuc.ing manual!) ... wait the red/green blinks, and press from 0 to 10 times for set the max brake ....
So far I was pressing always one time more then needed ... and I was setting in the max brake, what I did want to have as autobrake ... so a disaster set up !
PS: I did discover that the Moped 16V does accept the same setting as the GM V12 ... it just has one single red led, instead of the double (red & grean) leds in the GM. Other difference it is that the Moped not only make the red blinking, but also make some nice bip from the motor
.... so for 49$ this is a great clone of the GM v12 ... that was over 120$ new !