Mazda 3 2016 Manual page 516

If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Make Sure the Message is No Longer Displayed
Displays in the following cases:
Display
7–34
Indicated Condition/Action to be taken
Displays if i-ELOOP requires charging. Leave the
engine idling and wait until the message disappears.
NOTE
If the vehicle is driven while the message is displayed,
the buzzer will sound.
If you turn the steering wheel while the message
is displayed, it will feel heavier than normal, but
this does not indicate an abnormality. The steering
operation will return to normal after the message has
disappeared.