Mazda 3 Owners Manual: Theft-Deterrent System
If the theft deterrent system detects an inappropriate entry into the vehicle, which could result in the vehicle or its contents being stolen, the alarm alerts the surrounding area of an abnormality by sounding the horn and flashing the hazard warning lights.
The system will not function unless it's properly armed. So when you leave the vehicle, follow the arming procedure correctly.
Immobilizer System
The immobilizer system allows the
engine to start only with a key the system
recognizes.
If someone attempts to start the engine
with an unrecognized key, the engine
will not start, thereby hel ...
Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights flash for about 30
seconds when the system is triggered by
any one of the following:
Unlocking a door ...
Other materials:
System
The system operates only when the driver
is in the vehicle or within operational
range while the key is being carried.
NOTE
When the battery power is low, or in
places where there are high-intensity radio
waves or noise, the operational range
may become narrower or the system may
not operate ...
Outer Mirror Glass Inspection
Vehicles With Heated Outer Mirror
1. Disconnect the negative battery cable..
2. Remove the outer mirror glass..
3. Verify that the resistance is as indicated in the table.
If not as indicated in the table, or if the resistance is not within the
specification, replace the outer mi ...
Security Setting (Type A)
If a passcode is set, the system cannot be
activated unless the passcode is input.
NOTE
Do this function only when parked. It is
too distracting to attempt while driving
and you may make too many errors to be
effective.
Passcode setting
Press the pick-up button or talk button
with a sho ...
