Page 979 of 1111
RS±36
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
2267 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
Do not apply water, etc. to a front passenger airbag
assembly with the deployed airbag.
(1) Remove the front passenger airbag assembly from
the tire.
(2) Place the front passenger airbag assembly in a vi-
nyl bag, tie the end tightly and dispose of it in the
same way as other general parts disposal.
Page 980 of 1111
RS07H±01
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
RS±37
2268 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the front passenger airbag assembly, instrument panel or instrument panel
reinforcement.
If the airbag has been deployed.
If the front passenger airbag assembly has been found to be faulty in troubleshooting.
If the front passenger airbag assembly, instrument panel or instrument panel reinforcement has
been found to be faulty during the check in items.(See page RS±29)
If the front passenger airbag assembly has been dropped.
CAUTION:
For replacement of the front passenger airbag assembly, see page RS±28 and RS±38.
Be sure to follow the correct procedure.
Page 981 of 1111

RS07I±01
H02591
H02590
H04226
RS±38
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
2269 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
NOTICE:
Never use airbag parts from another vehicle. When replac-
ing parts, replace with new parts.
1. INSTALL FRONT PASSENGER AIRBAG ASSEMBLY
(a) Install the front passenger airbag assembly with 2 nuts.
Torque: 5.6 N´m ( 57 kgf´cm, 49 in.´lbf)
NOTICE:
Pass the straps of the front passenger airbag door
through the brackets on the right and left sides se-
curely.
Install the straps so that they are not pinched be-
tween the airbag and instrument panel.
(b) Install the 2 straps and 2 bolts.
NOTICE:
When installing the front passenger airbag assembly,
make sure that the straps are not distorted and
installed to the brackets securely.
Make sure that the front passenger airbag assembly
is installed to the specified torque.
If the front passenger airbag assembly has been
dropped, or there are cracks, dents or other defects
in the case or connector, replace the front passenger
airbag assembly with a new one.
When installing the front passenger airbag assembly,
take care that the wiring does not interfere with other
parts and is not pinched between other parts.
2. INSTALL INSTRUMENT PANEL
(See page BO±97)
Install the 2 bolts to the instrument panel reinforcement.
Torque: 20 N´m (205 kgf´cm, 15 ft´lbf)
3. CONNECT AIRBAG CONNECTOR
(a) Connect the airbag connector.
(b) Install the airbag connector to glove compartment door
finish plate.
(c) Install the glove compartment door finish plate.
Page 982 of 1111
RS07J±02
H11866
Seatback CoverFront Seatback Board
Seat Cushion Assembly
Seat Adjuster
Front Seat Inner
Cushion Cover
Seat Track CoverSeat Track Cover
Reclining Adjuster
Inside Cover LH
Front Seat Cushion ShieldFront Seat Outer Belt
Seat Belt Anchor
Cover Cap Power Seat
Switch KnobSide Airbag Assembly
: Specified torque
N´m (kgf´cm, ft´lbf)
Non±reusable part Hog Ring
61 (622, 45)
61 (622, 45)
19 (194, 14)
37 (375, 27)
37 (375, 27)
42 (430, 31)
37 (375, 27)37 (375, 27)
19 (194, 14)
19 (194, 14)
Headrest Support Headrest
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS±39
2270 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SIDE AIRBAG ASSEMBLY
COMPONENTS
Page 983 of 1111

RS0JC±01
N20339
H03709
RS±40
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
2271 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
NOTICE:
If the wiring connector of the SRS is disconnected
and the ignition switch is in ON or ACC position, DTCs
will be recorded.
Never use the airbag parts from another vehicle.
When replacing parts, replace them with new parts.
1. REMOVE FRONT SEAT OUTER BELT FLOOR AN-
CHOR
(a) Using a screwdriver, remove the seat belt anchor cover
cap.
HINT:
Tape the screwdriver tip before use.
(b) Remove the front seat outer belt floor anchor.
2. REMOVE FRONT SEAT
(a) Using a screwdriver, remove the 4 seat track covers.
HINT:
Tape the screwdriver tip before use.
(b) Remove the 4 bolts, then disconnect the airbag connec-
tor.
NOTICE:
When handling the airbag connector, take care not to dam-
age the airbag wire harness.
(c) Remove the front seat.
3. REMOVE HEADREST
4. REMOVE POWER SEAT SWITCH KNOBS
5. REMOVE FRONT SEAT CUSHION SHIELD
6. REMOVE FRONT SEAT INNER CUSHION COVER
7. REMOVE SIDE AIRBAG ASSEMBLY WIRE HARNESS
(a) Remove the connector from the bracket.
(b) Remove the 5 clamps and wire harness from the seat
cushion frame
8. REMOVE SEAT CUSHION ASSEMBLY
(a) Remove the wire harness from the seat cushion asseml-
by.
(b) Remove the 4 bolts and seat cushion assemlby from the
seat adjuster.
Page 984 of 1111
H02863
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS±41
2272 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
9. REMOVE SEATBACK ASSEMBLY
(a) Remove the 2 screws and pull the seatback board down-
ward to remove it.
(b) Remove the hog rings.
(c) Disconnect the connectors.
(d) Remove the 4 bolts and seatback assembly.
NOTICE:
Be careful not to damage the wire harness.
(e) Remove the 2 screws and seat cushion inside cover then
disconnect the wire harness from the seat cover.
HINT:
Do the same for LH and RH.
Page 985 of 1111

RS07L±02
H02603
Cross Section
H11875
RS±42
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
2273 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. Vehicles not involved in collision:
INSPECT SUPPLEMANTAL RESTRAINT SYSTEM
(a) Do a diagnostic system check (See page DI±552).
(b) Do a visual check which includes the following item with
the seatback assembly installed in the vehicle.
Check that there are no cuts or frayed in seams and out-
side of seatback cover.
2. Vehicle involved in a collision and airbag is not
deployed:
INSPECT SUPPLEMENTAL RESTRAINT SYSTEM
(a) Do a diagnostic system check (See page DI±552).
(b) Do a visual check which includes the following items with
the seatback assembly removed from the vehicle.
Check cuts and cracks of the side airbag assembly.
Check cuts and cracks in wire harness, and chip-
ping in connectors.
CAUTION:
For removal and installation of the seatback assembly, see
page RS±40 and RS±50. Be sure to follow the correct pro-
cedure.
3. Vehicle involved in a collision and airbag is deployed:
INSPECT SUPPLEMENTAL RESTRAINT SYSTEM
(a) Do a diagnostic system check (See page DI±552).
(b) Do a visual check which includes the following items with
the seatback assembly removed from the vehicle.
Check the seatback installation part of the seat ad-
juster.
Check the damage to the connector and wire har-
ness.
HINT:
If the seat adjuster is deformed, never repair it. Always replace
it with new one.
Page 986 of 1111

RS0JD±01
AB0152
SST
AB0158
Battery
SST
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS±43
2274 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
DISPOSAL
HINT:
When scrapping vehicles equipped with an SRS or disposing
of the side airbag assembly always first deploy the airbag in ac-
cordance with the procedure described below. If any abnormal-
ity occurs with the airbag deployment, contact the SERVICE
DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.
CAUTION:
Never dispose of a side airbag assembly which has
an undeployed airbag.
The airbag produces a sizeable exploding sound
when it deploys, so perform the operation out±of±
doors and where it will not create a nuisance to
nearby residents.
When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool), perform the op-
eration in a place away from electrical noise.
SST 09082±00700
When deploying an airbag, perform the operation at
least 10 m (33 ft) away from the airbag assembly.
The side airbag assembly is very hot when the airbag
is deployed, so leave it alone for at least 30 minutes
after deployment.
Use gloves and safety glasses when handling side
airbag assembly with the deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a side airbag assembly with
the deployed airbag.
1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-
HICLE
HINT:
Have a battery ready as the power source to deploy the airbag.
(a) Check functioning of the SST
(See step 1±(a) on page RS±17).
SST 09082±00700