Toyota Prius: Front Seat Side Airbag Assembly

• Removal
• Installation
• Disposal

Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during front seat airbag assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
*: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.
w/ Occupant Classification System: Front passenger seat*	Zero point calibration (Occupant classification system)	Occupant Classification System Passenger airbag ON/OFF indicator Airbag System (Front passenger side) Seat Belt Warning System (Front passenger)
Front seatback frame sub-assembly LH* Front seat adjuster assembly LH*	Initialize position control ECU	Front Power Seat Control System (w/ Memory)

CAUTION / NOTICE / HINT

NOTICE:

If a front seat airbag assembly has been deployed, replace the front seat airbag assembly, front seatback frame sub-assembly, separate type front seatback pad and separate type front seatback cover with the necessary parts in accordance with the extent of the collision damage.

for Manual Seat: Click here

for Power Seat: Click here

CAUTION / NOTICE / HINT

HINT:

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when Toyota Prius vehicle is driven

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Front Camera System	Drive the Toyota Prius vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

Learning completes when vehicle is operated normally

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
*1: w/o Power Back Door System *2: w/ Power Back Door System
Power Door Lock Control System*1 Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Power Back Door System*2	Reset back door close position
Air Conditioning System	for HEV Model: After the ignition switch is turned to ON, the servo motor standard position is recognized. for PHEV Model: After the ignition switch is turned to ON, the servo motor and expansion valve standard position is recognized.	-

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	FRONT SEAT ASSEMBLY	-	-	-	-
3	DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-

*A

for Manual Seat

-

-

Procedure		Part Name Code
4	VERTICAL ADJUSTING HANDLE	72495	-	-	-
5	RECLINING HINGE COVER	72552B	-	-	-
6	RECLINING ADJUSTER RELEASE HANDLE	72526A	-	-	-
7	SEAT ADJUSTER COVER CAP	71848A	-	-	-
8	FRONT SEAT CUSHION SHIELD	71812D		-	-
9	FRONT SEAT INNER CUSHION SHIELD	71862		-	-

*A

for Manual Seat

*B

w/ Vertical Adjuster

Procedure		Part Name Code
10	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

*A	for Manual Seat	-	-
*1	SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY	-	-

Procedure		Part Name Code
11	FRONT SEAT HEADREST SUPPORT	71931	-	-	-
12	SEPARATE TYPE FRONT SEATBACK COVER WITH PAD	-		-	-

*A

for Manual Seat

-

-

Procedure		Part Name Code
13	FRONT SEAT ASSEMBLY	-	-	-	-
14	DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-

*A

for Power Seat

-

-

Procedure		Part Name Code
15	FRONT SEAT FRONT CUSHION SHIELD	71868N		-	-
16	FRONT SEAT CUSHION SHIELD	71812D		-	-
17	FRONT SEAT INNER CUSHION SHIELD	71862		-	-

*A

for Power Seat

-

-

Procedure		Part Name Code
18	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

*A	for Power Seat	-	-
*1	SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY	-	-

Procedure		Part Name Code
19	FRONT SEAT HEADREST SUPPORT	71931	-	-	-
20	SEPARATE TYPE FRONT SEATBACK COVER WITH PAD	-		-	-

*A

for Power Seat

-

-

Procedure		Part Name Code
21	FRONT SEAT AIRBAG ASSEMBLY	73920A		-	-

●

Non-reusable part

-

-

PROCEDURE

1. PRECAUTION

NOTICE: After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal. Click here

2. REMOVE FRONT SEAT ASSEMBLY (for Manual Seat)

Click here

3. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER (for Manual Seat)

Click here

4. REMOVE VERTICAL ADJUSTING HANDLE (for Manual Seat with Vertical Adjuster)

Click here

5. REMOVE RECLINING HINGE COVER (for Manual Seat)

Click here

6. REMOVE RECLINING ADJUSTER RELEASE HANDLE (for Manual Seat)

Click here

7. REMOVE SEAT ADJUSTER COVER CAP (for Manual Seat with Vertical Adjuster)

Click here

8. REMOVE FRONT SEAT CUSHION SHIELD (for Manual Seat)

w/ Vertical Adjuster: Click here w/o Vertical Adjuster: Click here

9. REMOVE FRONT SEAT INNER CUSHION SHIELD (for Manual Seat)

w/ Vertical Adjuster: Click here w/o Vertical Adjuster: Click here

10. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY (for Manual Seat)

Click here

11. REMOVE FRONT SEAT HEADREST SUPPORT (for Manual Seat)

Click here

12. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD (for Manual Seat)

Click here

13. REMOVE FRONT SEAT ASSEMBLY (for Power Seat)

Click here

14. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER (for Power Seat)

Click here

15. REMOVE FRONT SEAT FRONT CUSHION SHIELD (for Power Seat)

Click here

16. REMOVE FRONT SEAT CUSHION SHIELD (for Power Seat)

Click here

17. REMOVE FRONT SEAT INNER CUSHION SHIELD (for Power Seat)

Click here

18. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY (for Power Seat)

Click here

19. REMOVE FRONT SEAT HEADREST SUPPORT (for Power Seat)

Click here

20. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD (for Power Seat)

Click here

21. REMOVE FRONT SEAT AIRBAG ASSEMBLY

CAUTION: When storing the front seat airbag assembly, keep the airbag deployment side facing upward.

(1) Disengage the clamp.

(2) Remove the 2 nuts and front seat airbag assembly.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	FRONT SEAT AIRBAG ASSEMBLY	73920A		-	-

Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

●

Non-reusable part

Procedure		Part Name Code
2	SEPARATE TYPE FRONT SEATBACK COVER WITH PAD	-	-	-	-
3	FRONT SEAT HEADREST SUPPORT	71931	-	-	-

*A

for Manual Seat

-

-

Procedure		Part Name Code
4	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

*A	for Manual Seat	-	-
*1	SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY	-	-
	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)	-	-

Procedure		Part Name Code
5	FRONT SEAT INNER CUSHION SHIELD	71862	-	-	-
6	FRONT SEAT CUSHION SHIELD	71812D	-	-	-
7	SEAT ADJUSTER COVER CAP	71848A	-	-	-
8	RECLINING ADJUSTER RELEASE HANDLE	72526A	-	-	-
9	RECLINING HINGE COVER	72552B	-	-	-
10	VERTICAL ADJUSTING HANDLE	72495	-	-	-

*A

for Manual Seat

*B

w/ Vertical Adjuster

Procedure		Part Name Code
11	CONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-
12	FRONT SEAT ASSEMBLY	-	-	-	-

*A

for Manual Seat

-

-

Procedure		Part Name Code
13	SEPARATE TYPE FRONT SEATBACK COVER WITH PAD	-	-	-	-
14	FRONT SEAT HEADREST SUPPORT	71931	-	-	-

*A

for Power Seat

-

-

Procedure		Part Name Code
15	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

*A	for Power Seat	-	-
*1	SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY	-	-
	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)	-	-

Procedure		Part Name Code
16	FRONT SEAT INNER CUSHION SHIELD	71862	-	-	-
17	FRONT SEAT CUSHION SHIELD	71812D	-	-	-
18	FRONT SEAT FRONT CUSHION SHIELD	71868N	-	-	-

*A

for Power Seat

-

-

Procedure		Part Name Code
19	CONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-
20	FRONT SEAT ASSEMBLY	-	-	-	-

*A

for Power Seat

-

-

PROCEDURE

1. INSTALL FRONT SEAT AIRBAG ASSEMBLY

(1) Install the front seat airbag assembly with 2 new nuts.

Torque:

5.5 N·m {56 kgf·cm, 49 in·lbf}

(2) Engage the clamp.

2. INSTALL SEPARATE TYPE FRONT SEATBACK COVER WITH PAD (for Manual Seat)

3. INSTALL FRONT SEAT HEADREST SUPPORT (for Manual Seat)

4. INSTALL SEPARATE TYPE FRONT SEATBACK ASSEMBLY (for Manual Seat)

Click here

5. INSTALL FRONT SEAT INNER CUSHION SHIELD (for Manual Seat)

6. INSTALL FRONT SEAT CUSHION SHIELD (for Manual Seat)

7. INSTALL SEAT ADJUSTER COVER CAP (for Manual Seat with Vertical Adjuster)

8. INSTALL RECLINING ADJUSTER RELEASE HANDLE (for Manual Seat)

9. INSTALL RECLINING HINGE COVER (for Manual Seat)

10. INSTALL VERTICAL ADJUSTING HANDLE (for Manual Seat with Vertical Adjuster)

11. CONNECT SEPARATE TYPE FRONT SEATBACK COVER (for Manual Seat)

12. INSTALL FRONT SEAT ASSEMBLY (for Manual Seat)

Click here

13. INSTALL SEPARATE TYPE FRONT SEATBACK COVER WITH PAD (for Power Seat)

14. INSTALL FRONT SEAT HEADREST SUPPORT (for Power Seat)

15. INSTALL SEPARATE TYPE FRONT SEATBACK ASSEMBLY (for Power Seat)

Click here

16. INSTALL FRONT SEAT INNER CUSHION SHIELD (for Power Seat)

17. INSTALL FRONT SEAT CUSHION SHIELD (for Power Seat)

18. INSTALL FRONT SEAT FRONT CUSHION SHIELD (for Power Seat)

19. CONNECT SEPARATE TYPE FRONT SEATBACK COVER (for Power Seat)

20. INSTALL FRONT SEAT ASSEMBLY (for Power Seat)

Click here

Disposal

DISPOSAL

CAUTION / NOTICE / HINT

CAUTION:

Before performing pre-disposal deployment of any SRS part, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment.

PROCEDURE

1. PRECAUTION

HINT:

When scrapping a Toyota Prius vehicle equipped with an SRS or disposing of the front seat airbag assembly, be sure to deploy the airbag first in accordance with the following procedure. If any abnormality occurs with the airbag deployment, contact the Service Department of the distributor.

2. DISPOSE OF FRONT SEAT AIRBAG ASSEMBLY (When Installed to Toyota Prius Vehicle)

HINT:

Prepare an auxiliary battery as the power source to deploy the airbag.

(a) Check the function of SST. Click here SST: 09082-00700

(b) Refer to Precaution.

Click here

(c) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(d) Disconnect the front seat airbag assembly connector under the front seat assembly.

NOTICE:

When disconnecting any airbag connector, take care not to damage the airbag wire harness.

HINT:

Refer to How to Connect or Disconnect Airbag Connector.

Click here

(e) Install SST.

CAUTION:

Check that there is no looseness in the front seat assembly.

(1) After connecting the following SST to each other, connect them to the front seat airbag assembly. SST: 09082-00700 SST: 09082-00820 NOTICE: To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock.

(2) Move SST at least 10 m (32.8 ft.) away from the front side window of the Toyota Prius vehicle.

*a Auxiliary Battery *b 10 m (32.8 ft.) or more

(3) Maintaining sufficient clearance for the SST wire harness in the front side window, close all doors and windows of the Toyota Prius vehicle.

NOTICE:

Take care not to damage the SST wire harness.

(4) Connect the red clip of SST to the positive ( ) auxiliary battery terminal and the black clip of SST to the negative (-) auxiliary battery terminal.

(f) Deploy the airbag.

(1) Check that no one is inside the Toyota Prius vehicle or within a 10 m (32.8 ft.) radius of the vehicle.

(2) Press the SST activation switch to deploy the airbag.

HINT:

The airbag is deployed as the LED of the SST activation switch comes on.

3. DISPOSE OF FRONT SEAT AIRBAG ASSEMBLY (When not Installed to Toyota Prius Vehicle)

NOTICE:

Be sure to perform the following procedure when deploying the airbag.

HINT:

Prepare an auxiliary battery as the power source to deploy the airbag.

(a) Check the function of SST. Click here SST: 09082-00700

(b) Remove the front seat airbag assembly.

Click here

(c) Using braided wire, tie down the front seat airbag assembly to an unneeded tire.

*a	Wire Diameter
*b	Stripped Wire Cross Sectional Area

Wire:

Stripped Wire Cross Sectional Area

1.25 mm2 (0.0019 in.2) or more

CAUTION:

If the wire is too thin or an alternative object is used to tie down the front seat airbag assembly, it may snap when the airbag is deployed. Always use a wire for Toyota Prius vehicle use with a cross sectional area of at least 1.25 mm2 (0.0019 in.2).

HINT:

To calculate the cross sectional area of the stripped wire:

Cross sectional area = 3.14 x (Diameter)2 / 4

(1) Install the 2 nuts to the front seat airbag assembly.

(2) Wind 2 or more wires around the stud bolts of the front seat airbag assembly as shown in the illustration.

(3) Position the front seat airbag assembly inside the tire with the airbag deployment side facing inward.

*a	Width
*b	Inner Diameter

Minimum Tire Size:

Width

185 mm (7.28 in.)

Inner Diameter

360 mm (1.18 ft.)

NOTICE:

The tire may be damaged by the airbag deployment, so use an unneeded tire.

(d) Install SST.

(1) Connect the SST connector to the front seat airbag assembly connector. SST: 09082-00820

(e) Place the tires.

(1) Place at least 2 tires under the tire to which the front seat airbag assembly is tied. Minimum Tire Size: Width 185 mm (7.28 in.) Inner Diameter 360 mm (1.18 ft.) NOTICE: Do not place the SST connector under the tire because it could be damaged.

*a Tires (2 or more)

(2) Place at least 2 tires onto the tire to which the front seat airbag assembly is tied. The top tire should have a wheel installed.

NOTICE:

The wheel and tires may be damaged by the airbag deployment, so use an unneeded wheel and tires.

(3) Tie the tires together with 2 wires. CAUTION: Make sure that the wires are tight. Looseness in the wires will result in the tires breaking loose when the airbag is deployed.

(f) Install SST.

(1) Connect the SST connector. SST: 09082-00700 NOTICE: To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. Also, secure some slack for the SST wire harness inside the tire.

*1 Front Seat Airbag Assembly *a Auxiliary Battery *b 10 m (32.8 ft.) or more

(2) Move SST at least 10 m (32.8 ft.) away from the airbag tied down to the tire.

(g) Deploy the airbag.

(1) Connect the red clip of SST to the positive ( ) auxiliary battery terminal and the black clip of SST to the negative (-) auxiliary battery terminal.

(2) Check that no one is within a 10 m (32.8 ft.) radius of the tire to which the front seat airbag assembly is tied.

(3) Press the SST activation switch to deploy the airbag.

CAUTION:

Before deployment, make sure that no one is near the airbag.

HINT:

The airbag is deployed as the LED of the SST activation switch comes on.

(h) Dispose of the front seat airbag assembly.

(1) Remove the front seat airbag assembly from the tire.

(2) Place the front seat airbag assembly in a plastic bag, tie it tightly, and dispose of it according to local regulations.