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Body Electrical System: Precaution

NOTE: Take care to observe the following precautions when performing inspections or removal and replacement of body electrical related parts.
  1. Headlight System - 
    • Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched or dropped. Hold a bulb only by its plastic or metal case. Don't touch the glass part of a bulb with bare hands.
    • When high voltage socket of discharge headlight is touched with the light control switch HEAD, high voltage of 20,000 V is momentarily generated. This might lead to a serious accident.
    • Never connect the tester to the high voltage socket of discharge headlight for measurement, as this leads to a serious accident because of high voltage.
    • When performing operation related to the discharge headlight, make sure to do it in the place with no water of rain to prevent electric shock, with light control switch OFF, battery terminal removed, connector of light control ECU disconnected.
    • When performing operation related to the discharge headlight, make sure to do it after assembling has been completely over and never light up without a bulb installed.
    • Do not light up the discharge headlight using another power source except vehicle's.
    • When there is a defect on the discharge headlight or any shock has been applied to it, replace the light with a new one.

      Even if the light operates normally, there is a possibility that the fail-safe function works.

  2. SRS (Supplemental Restraint System) -  The LEXUS IS300 is equipped with an SRS (Supplemental Restraint System) such as the driver airbag, front passenger airbag, side airbag, curtain shield airbag. Failure to carry out service operation in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notices in the Supplemental Restraint System section.
  3. Audio System -  If the negative (-) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 stations stored in memory are erased, so make sure to note the stations and reset them after the negative (-) terminal cable is reconnected to the battery.
  4. Mobile Communication System -  If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.
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