2008 Lexus GS 450hFACTORY OEM SERVICE PROCEDURE

Customize Parameters

HINT:

The following items can be customized.

NOTE:
  • When the customer requests a change in a function, first make sure that the function can be customized.
  • Be sure to make a note of the current settings before customizing.
  • When troubleshooting a function, first make sure that the function is set to the default setting.
  1. POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM 

    Power tilt and power telescopic steering column 

    POWER TILT AND POWER TELESCOPIC STEERING COLUMN REFERENCE CHART

    Display Default Contents Setting
    Autoaway/Return function ON ON/OFF of the auto away/return function ON/OFF
  2. AIR CONDITIONING SYSTEM 

    Air Conditioning System 

    AIR CONDITIONING SYSTEM REFERENCE CHART

    Display (Item) Default Contents Setting
    Set Temperature Shift NORMAL To control with the shifted temperature against the display temperature +2 C / +1 C / NORMAL / -1 C / -2 C
    Air Inlet Mode AUTO In case of turning the A/C ON when you desire to make the compartment cool down quickly, this is the function to change the mode automatically to RECIRCULATION mode MANUAL/AUTO
    Compressor Mode AUTO Function to turn the A/C ON automatically by pressing the AUTO button when the blower is ON and the A/C is OFF MANUAL/AUTO
    Compressor/Air Inlet DEF operation) LINK Function to turn the A/C ON automatically linked with the FRONT DEF button when A/C OFF MANUAL / LINK
    Emission Gas Sensor Shift NORMAL Function to change the sensitivity of the exhaust gas sensor MU MORE / MORE / LI MORE / NORMAL / LI LESS / LESS / MU LESS
    Button Press Buzzer ON Function to sound a buzzer when button is pressed OFF / ON
    Foot/DEF Auto Mode ON Function to turn the airflow from FOOT / DEF ON automatically when AUTO MODE is ON OFF / ON
    Foot/DEF Automatic Blow Up Function ON Function to change the blower level automatically when the defroster is ON OFF / ON
    Ambient Temperature Shift Normal Function to control the shifted ambient temperature in relation to the displayed ambient temperature +3 C / +2 C / +1 C / Normal / -1 C / -2C / -3C
    Foot Air Leak ON Function to cut off the airstream felt underfoot while the vehicle is moving OFF / ON
  3. THEFT DETERRENT SYSTEM 

    Security 

    SECURITY REFERENCE CHART

    Display (Item) Default Contents Setting
    Warning by Horn ON Function that allows vehicle horns and theft deterrent horn to be used as warning device. ON / OFF
    Passive Mode OFF Passive arming mode is a function that switches theft deterrent system from arming preparation state to armed state 30 seconds after key is not inside vehicle and driver side door is closed.
    In passive arming mode, theft deterrent system will judge that a theft is taking place and switch to alarm sounding state if one of the following operations are not performed within 14 seconds (see entry delay below) after door is opened:
    • Unlock any door by key or wireless operation
    • Turn power switch ON (IG)
    ON / OFF
    Entry Delay Time 14s Function that changes entry delay time (time before warning starts) for PASSIVE ARMING MODE 0s/14 s/30s
  4. LIGHTING SYSTEM 

    Illuminated entry 

    ILLUMINATED ENTRY REFERENCE CHART

    Display Default Contents Setting
    I/L when ACC OFF ON Function to light the interior light when the power switch is operated from ON (IG or ACC) to OFF ON / OFF
    Lighting Time 15s Function to change the lighting time after closing the door. (It will quickly fade out in case of turning the power switch ON (IG)) 7.5s / 15s / 30s
    Light Control ON Function to light up step light and door inside handle light when the power switch is ON (IG) and shift position is not P ON / OFF
    I/L ON / Unlock ON Function to light the interior light, etc. when the door is unlocked with a transmitter, door key or door lock control switch. ON / OFF
    Seat Light Control AVAIL Function to light up the seat light when unlocking with the door key cylinder NOT AVL / AVAIL
    Steering Light Control AVAIL Function to light up the steering light when unlocking with the door key cylinder NOT AVL / AVAIL
    Shift Light Control AVAIL Function to light up the shift light when unlocking with the door key cylinder NOT AVL / AVAIL

    HINT:

    Sensitivity adjustment can hardly be confirmed. Check by driving the customer's vehicle.

    Light control 

    LIGHT CONTROL REFERENCE CHART

    Display Default Contents Setting
    Light Auto OFF Delay 30s Function to keep on lighting the headlight for a certain period of time after closing all the doors with the power switch turned from ON to OFF under the condition that the light control switch is at HEAD or AUTO with the headlight ON OFF / 30s / 60s / 90s
    Sensitivity NORMAL Function to adjust the sensitivity of lighting illumination*1. LIGHT2 / LIGHT1 / NORMAL / DARK1 / DARK2
    Disp Ex ON Sen NORMAL Changes brightness when lowering lights such as combination meter indicator light, A/C indicator light, and clock light. Refer to Fig 2for illustration*2. LIGHT2 / LIGHT1 / NORMAL / DARK1/DARK2
    Disp Ex OFF Sen NORMAL Changes brightness when lowering lights such as combination meter indicator light, A/C indicator light, and clock light. Refer to Fig 3for illustration*3. LIGHT2 / LIGHT1 / NORMAL / DARK1/DARK2
    Foot Light Time (Driver's Side)*4 15s Function to set how long foot light stays on (driver's side) OFF / 7.5s / 15s / 30s
    Foot Light Time (Passenger's Side)*4 15s Function to set how long foot light stays on (passenger's side) OFF/7.5s / 15s / 30s
    Foot Light Set up ON Function to light up foot light ON / OFF
    DRL Function* ON DRL control ON / OFF
    HINT:
    *:Except Canada
    Fig 1: Light System Reference Chart - Illustration*1
    G05813202Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.