Toyota Avensis Owner's Manual page 128

1-6. Theft deterrent system
Vehicles without smart entry & start system
 System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
 Conditions that may cause the system to malfunction
If the key is in contact with a metallic object

If the key is in close proximity to or touching a key to the security system

(key with a built-in transponder chip) of another vehicle
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The indicator light flashes after
the key has been removed
from the engine switch to indi-
cate that the system is operat-
ing.
The indicator light stops flash-
ing after the registered key
has been inserted into the
engine switch to indicate that
the system has been can-
celed.