Mazda Mazda3 2019 Owner's Manual page 141

With the selector lever in the P or N

position, or the D/M range, the
driver's seat belt is unfastened, the
driver's door is opened, or the bonnet
is opened.
The steering wheel is operated.

Selector lever is operated while engine
idling is stopped (automatic transmission)
If the selector lever is shifted from D or M
(not in second gear fixed mode) position to
N or P position while engine idling is
stopped, the engine does not restart even
when the brake pedal is released. The
engine will restart if the brake pedal is
depressed again or the selector lever is
shifted to the D, M (not in second gear
fixed mode), or R position. (For the
purposes of safety, always keep the brake
pedal depressed when shifting the selector
lever while engine idling is stopped.)
If the selector lever is shifted from the D
or M (not in second gear fixed mode) to
the N or P position, and the driver's seat
belt is unfastened or the driver's door is
opened, the engine restarts.
Battery terminals are disconnected
Engine idling may not stop right after the
battery terminals are disconnected. In
addition, if the battery is replaced, the
i-stop functions must be verified. Consult
an expert repairer, we recommend an
Authorised Mazda Repairer.
Start/Stop Engine
▼ i-stop OFF Switch
By pressing the switch until a beep
sounds, the i-stop function is turned off.
By pressing the switch again until the beep
sounds, the i-stop function becomes
operational.
NOTE
If the engine is stopped with the i-stop
function cancelled, the i-stop function
becomes operational when the engine is
started the next time.
▼ Vehicle Roll Prevention Function
Vehicles with the i-stop function are
equipped with a vehicle roll prevention
function. This function prevents the
vehicle from rolling, such as when
releasing the brake pedal while on a slope
under the following conditions:
While engine idling is stopped (prevents

the vehicle from rolling back)
When the engine restarts after releasing

the brake pedal (prevents the vehicle's
sudden movement due to vehicle creep),
sudden movement of the vehicle is
prevented by controlling the brakes.
When Driving
4-15