Mazda 3 2020 Owner's Manual page 559

CAUTION
Do not disassemble the Mazda ERA-GLONASS. Otherwise, it could become
damaged and may not function in an emergency.
The Mazda ERA-GLONASS has a special built-in battery so that it can operate even
if the power supply from the vehicle is cut such as in an accident.
Heed the following cautions. If the Mazda ERA-GLONASS is not used correctly it
may not operate.
The built-in battery is not a rechargeable type battery. Do not attempt to
recharge the battery.
The built-in battery life is 3 years. Have the built-in battery replaced at an
Authorised Mazda Repairer periodically.
If the built-in battery power is low due to natural discharge and the system
determines that there is a problem, the Mazda ERA-GLONASS cannot be used.
If the system determines that there is a problem, the indicator light (red) in the
Emergency call switch turns on to notify the driver. Have the vehicle inspected at
an Authorised Mazda Repairer. Refer to Indicator light/Beep sound on page
7-19.
NOTE
The Mazda ERA-GLONASS can be used when the ignition is switched ON.

There are two ways the Mazda ERA-GLONASS makes calls; automatically or

manually.
The Mazda ERA-GLONASS may not make a connection under the following

conditions or depending on the use environment. If the Mazda ERA-GLONASS
does not connect, make a call from another telephone such as the nearest
available public telephone.
The vehicle is outside of a mobile phone network area

The vehicle is in a weak radio wave transmission environment (such as inside

tunnels, underground parking areas, shadow of buildings, and mountain areas)
The vehicle does not receive an impact of a certain level or more even if an

accident has occurred.
An extremely serious collision occurs resulting in damage to the Mazda

ERA-GLONASS.
The position information cannot be obtained when signals cannot be received

from the GNSS satellites, however, voice calls are possible.
When a voice call is made by the Mazda ERA-GLONASS, the audio system is

muted so that it does not interfere with the call.
It may take some time for the call centre to respond after the Mazda

ERA-GLONASS first starts operating.
If you are unable to respond to an operator's questions after the voice call begins,

the operator may proceed with emergency procedures at their own discretion.
Even if it is difficult for you to hear the operator's voice, your voice may be heard

by the call centre. Continue explaining your circumstances.
Mazda ERA-GLONASS
If Trouble Arises
7-15