2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Deviation Calibration

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

Stop vehicle. Push MODE button several times until ZONE XX appears in calendar display area. See Figure. Push RESET/ADJ button to select the zone where vehicle is located by referring to illustration. See Fig 1. After correct zone is entered, push MODE button several times until calendar display returns to normal.

Fig 1: Map Showing Calibration Zones
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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.