Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Torque Specification
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE SPECIFICATION
| Part Tightened | N.m | kgf.cm | ft.lbf |
|---|---|---|---|
| FRONT SEAT ASSY LH (MANUAL SEAT TYPE) | |||
| Seat position airbag sensor x Seat adjuster assy | 8.0 | 82 | 71 in.lbf |
| Seatback cover bracket x Seat adjuster assy (w/ Side airbag) | 5.5 | 56 | 48 in.lbf |
| Front seat Inner belt assy LH x Seat adjuster assy | 42 | 428 | 31 |
| Front seat assy LH x Body | 37 | 375 | 27 |
| FRONT SEAT ASSY LH (POWER SEAT TYPE) | |||
| Seat position airbag sensor x Seat adjuster assy | 8.0 | 82 | 71 in.lbf |
| Seatback cover bracket x Seat adjuster assy (w/ Side airbag) | 5.5 | 56 | 48 in.lbf |
| Front seat Inner belt assy LH x Seat adjuster assy | 42 | 428 | 31 |
| Front seat assy LH x Body | 37 | 375 | 27 |
| REAR NO. 1 SEAT ASSY | |||
| Seat belt assy outer center x Body Bolt | 42 | 428 | 31 |
| Nut | 42 | 428 | 31 |
| Seatback hinge x Seatback frame | 37 | 377 | 27 |
| Seatback hinge x Body | 18 | 184 | 13 |
| Seatlock striker x Body | 18 | 184 | 13 |
| Seatback hinge center x Body | 18 | 184 | 13 |
| Seatback hinge center x Seatback frame | 37 | 377 | 27 |
| Armrest assy center x Seatback assy | 8.0 | 82 | 71 in.lbf |
| No. 1 seat hinge assy x Seat cushion frame | 18 | 184 | 13 |
| No. 1 seat hinge assy x Body | 37 | 377 | 27 |
| REAR NO.1 SEAT (3rd SEAT) Rear No. 1 seat LH and RH x Body | 37 | 375 | 27 |
| Rear seat belt inner x Rear seat cushion frame | 42 | 430 | 31 |
| Rear seat belt inner No. 2 x Rear seat cushion frame | 42 | 430 | 31 |
| Rear seat 3-joint type belt assy LH x Rear seat cushion frame | 42 | 430 | 31 |
| Rear seatback frame x Rear seat cushion frame | 50 | 510 | 37 |
| REAR NO.2 SEAT (3rd SEAT) | |||
| Seat No. 1 cushion frame x Rear seat frame | 18 | 185 | 13 |
| Rear seat belt inner x Rear seat frame | 42 | 430 | 31 |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
