deactivate airbag LEXUS IS300 2021 Owners Manual

361-1. For safe use
Driver’s and front passenger’s seat belt reminder light
SRS warning light
For the U.S.A. “AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
For Canada“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger occupant classification system
Your vehicle is equipped with a front pa ssenger occupant classification system.
This system detects the conditions of th e front passenger seat and activates or
deactivates the front passenger airb ag and front passenger knee airbag.
System components
A
B
C
D
E
F
WARNING
■Front passenger occupant classifica-
tion system precautions
Observe the following precautions
regarding the front passenger occupant
classification system.
Failure to do so may cause death or seri-
ous injury.
●Wear the seat belt properly.
●Make sure the front passenger’s seat
belt plate has not been left inserted
into the buckle before someone sits in
the front passenger seat.

381-1. For safe use
■Adult*1
■Child*4
■Child restraint system with infant*5
Condition and operation in the front passenger occupant classification
system
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi-cator lights“AIR BAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagActivatedFront passenger knee airbag
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF” or
“AIR BAG ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivated or acti-
vated
*4Front passenger knee airbag
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”*6
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

391-1. For safe use
1
For safety and security
■Unoccupied
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller adult sits in the
front passenger seat, the system may not re cognize him/her as an adult depending on
his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: For some children, child in se at, child in booster seat or child in convertible seat, the sys-
tem may not recognize him/her as a child. Factors which may affect this can be the phy-
sique or posture.
*5: Never install a rear-facing child restraint system on the front passenger seat. A for-
ward-facing child restraint system should only be installed on the front passenger seat
when it is unavoidable. ( P.41)
*6: In case the indicator light is not illuminated, consult this manual on how to install the child
restraint system properly. ( P.42)
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi-
cator lights“AIR BAG OFF”
SRS warning light
OffDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”
SRS warning light
OnDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

2394-5. Using the driving support systems
4
Driving
controlling the brakes, engine output
and steering assist.
■The Secondary Collision Brake
When the SRS airbag sensor detects a
collision and the system operates, the
brakes and brake lights are automati-
cally controlled to reduce the vehicle
speed and help redu ce the possibility
of further damage due to a secondary
collision.
■When the TRAC/VSC systems are
operating
The slip indicator light will flash while the
TRAC/VSC systems are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt or snow,
the TRAC system may reduce power from
the engine to the wheels. Pressing the
switch to turn the system off may make it
easier for you to rock the vehicle in order to
free it.
To turn the TRAC system off, quickly press
and release switch.
The “Traction Control Turned Off” will be
shown on the multi-information display.
Press the switch again to turn the sys-
tem back on.
■Turning off both TRAC and VSC sys-
tems
To turn the TRAC and VSC systems off,
press and hold the switch for more
than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on
and the “Traction Control Turned Off” will
be shown on the multi-information display.
*
Press the switch ag ain to turn the sys-
tem back on.
*: Pre-collision brake assist and pre-colli- sion braking will also be disabled. The
pre-collision system warning light will
come on and the messa ge will be shown
on the multi-information display.
(  P.179)
■When the message is displayed on the
multi-information display showing that
TRAC has been disabled even if the
VSC OFF switch has not been pressed
TRAC is temporary deactivated. If the infor-
mation continues to show, contact your
Lexus dealer.
■Operating conditions of hill-start assist
control
When the following four conditions are met,
the hill-start assist control will operate:
●The shift lever is in a position other than P
or N (when starting off forward/back-
ward on an upward incline)
●The vehicle is stopped
●The accelerator pedal is not depressed
●The parking brake is not engaged
●Engine switch is turned to IGNITION
ON mode