2004 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Service Intervals

As part of general maintenance requirements for this vehicle, manufacturer requires checking for transmission fluid leaks.

Under normal conditions, manufacturer recommends transmission fluid be inspected every 30,000 miles. See DRAINING & REFILLINGΒ .

Under severe conditions (vehicle is used primarily to tow a trailer or haul a car top carrier), manufacturer recommends inspecting transmission fluid every 30,000 miles to determine its condition and determine need for replacement. Manufacturer recommends replacing transmission fluid at 60,000 mile intervals. See DRAINING & REFILLINGΒ .

TRANSMISSION FLUID SERVICE INTERVALS

Mileage Normal Conditions Severe Conditions
30,000 Inspect Inspect
60,000 Inspect Replace
90,000 Inspect Inspect
120,000 Inspect Replace
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.

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