Lexus ES300 Owner's Manual page 129

" 1 Front seat belt pretensioner assemblies
2 SRS warning light
3 Front airbag sensors
4 Airbag sensor assembly
The front seat belt pretensioner system mainly consists of the
above components, and their locations are shown in the
illustration.
The front seat belt pretensioners are controlled by the airbag
sensor assembly. The airbag sensor assembly consists of a
safing sensor and airbag sensor.
When the front seat belt pretensioners are activated, an
operating noise may be heard and a small amount of
smoke like gas may be released. This gas is harmless and
does not indicate that a fire is occurring.
Once the front seat belt pretensioners have been activated, the
seat belt retractors remain locked.
COMFORT ADJUSTMENT
CAUTION
Do not modify, remove, strike or open the front seat belt
pretensioner assemblies, airbag sensor or surrounding
area or wiring. Doing so may cause sudden operation of
the front seat belt pretensioners or disable the system,
which could result in death or serious injury.
Failure to follow these instructions can result in death
or serious injuries. Consult your Lexus dealer about
any repairs and modifications.
NOTICE
Do not perform any of the following changes without
consulting your Lexus dealer. Such changes can
interfere with proper operation of the front seat belt
pretensioners in some cases.
D Installation of electronic devices such as a mobile
two way radio, cassette tape player or compact disc
player
D Repairs on or near the front seat belt retractor
assemblies
D Modification of the suspension system
D Modification of the front end structure
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