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.
2012 Lexus GX 460FACTORY OEM SERVICE PROCEDURE
Service Data
| Battery | Standard specific gravity | 1.25 to 1.29 at 20°C (68°F) | ||
| Charging circuit without load | Standard current | 10 A or less | ||
| Standard voltage | 13.2 to 14.8 V (when engine speed at 2000 rpm) |
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| Charging circuit with load | Standard current | 30 A or higher | ||
| Generator rotor | Standard resistance | between the slip rings | 130 A Type | 2.3 to 2.7 Ω at 20°C (68°F) |
| 150 A Type | 1.5 to 1.9 Ω at 20°C (68°F) | |||
| Standard diameter | 14.2 to 14.4 mm (0.559 to 0.567 in.) | |||
| Minimum diameter | 14.0 mm (0.551 in.) | |||
| Generator brush holder | Standard exposed length | 9.5 to 11.5 mm (0.374 to 0.453 in.) | ||
| Minimum exposed length | 4.5 mm (0.177 in.) | |||
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:
- • 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.