Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.

The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is operating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.
System maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
Conditions that may cause the system to malfunction
l If the grip portion of 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
Certifications for the engine immobilizer system
For vehicles sold in the USA
FCC ID: NI4TMIMB-1
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following
two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that
may
cause undesired operation.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not
cause
interference, and (2) this device must accept any interference, including
interference
that may cause undesired operation of the device.
CAUTION:
Changes or modifications not expressly approved by the party responsible for
compliance
could void the user’s authority to operate the equipment.
NOTICE:
To ensure the system correctly
Do not modify and remove the system. If modified or removed, the proper
operation
of the system cannot be guaranteed.
See also:
Interior
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occupants when equipped with an optional third-row seat. Standard features
include dual-zone automatic climate control, lea ...
Exterior
The GX looks like a huge, lumbering SUV, but that's mostly a misleading trick
of the eye. The GX is actually shorter and narrower than competitors like the
Acura MDX and Buick Enclave. It's the SU ...
Maintenance requirements
To ensure safe and economical driving, day-to-day care and regular
maintenance
is essential. It is the owner’s responsibility to perform regular
checks. Lexus recommends the following maintenance. ...
