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 |
|---|---|---|---|
| Horn button assy x Steering wheel assy | 8.8 | 90 | 78 in.lbf |
| Steering wheel assy x Steering column assy | 50 | 510 | 37 |
| Instr pnl pass I/door airbag assy x Instrument panel reinforcement | 20 | 200 | 14 |
| Curtain shield airbag assy x Body | 9.8 | 100 | 87 in.lbf |
| Airbag sensor assy center x Body | 17.5 | 178 | 13 |
| Airbag sensor front x Body | 7.5 | 76 | 66 in.lbf |
| Side airbag sensor assy x Body | 17.5 | 178 | 13 |
| Airbag sensor rear x Body | 17.5 | 178 | 13 |
| Seat position airbag sensor x Front seat assy LH | 8.0 | 82 | 71 in.lbf |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.