Mazda CX-5 2021 Owner's Manual page 167

If the system detects that the remaining

battery power of the key is low when the
ignition is switched from ON to ACC or
OFF, the following is indicated.
Replace with a new battery before the
key becomes unusable.
Refer to Key Battery Replacement on
page 6-41.
(Vehicle equipped with Type A/B
instrument cluster)
A message is indicated in the display of
the instrument cluster.
(Vehicle equipped with Type C
instrument cluster)
The KEY indicator light (green) flashes
for approximately 30 seconds.
Refer to Taking Action on page 7-33.
If the engine is turned off while the

selector lever is in a position other than
P, the ignition switches to ACC.
▼ Emergency Engine Stop
Continuously pressing the push button
start or quickly pressing it any number of
times while the engine is running or the
vehicle is being driven will turn the engine
off immediately. The ignition switches to
ACC.
When Driving
Start/Stop Engine
4-11