Mazda CX-3 Owner's Manual page 186

When Driving
Transaxle
NOTE
The gear shift indicator turns off when
the following operations are performed.
The vehicle is stopped.
The vehicle is put in neutral.
The vehicle is driven in reverse.
The clutch is not fully engaged when
accelerating from a stop.
The clutch pedal remains depressed
for 2 seconds or longer while driving.
4–46