PEUGEOT 3008 2015 Handbook page 195

If there is a difference of less than 6 mph
(10 km/h) between the speed setting and
the speed displayed by the recognition
system, the MEM symbol is not displayed.
F Press the button once to save the
suggested speed value.
F Press this button again to confirm and save
the new speed setting.
After a predetermined period, the screen
returns to the standard display.
Driving
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