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Home >> Lexus >> 1998 >> LS 400 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System - Remote >> Description & Operation
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Description & Operation

Keyless entry system allows the doors to be locked and unlocked by the use of low-power electrical waves emitted from a hand held transmitter. Pushing the unlock button once will turn off the theft deterrent system and unlock driver's door. Pushing the transmitter unlock button again within 3 seconds will unlock the other doors and sound 2 beeps. Interior lights will also illuminate if interior light switch is in DOOR position. Pushing the transmitter trunk lid unlock button will unlock the trunk lid and sound one beep. However, these functions do not operate if ignition switch is in ON position. If doors are not opened within 30 seconds, all the doors will automatically relock.

Pushing the transmitter lock button once will lock all doors and sound one beep. If any door is not fully closed when lock button is pressed, door lock buzzer will sound for 10 seconds. To stop buzzer, ensure all doors are closed completely and push transmitter lock button again. If the transmitter lock button is pressed continuously for 2-3 seconds, panic alarm will sound. To stop panic alarm, push any transmitter button. However, these functions do not operate if ignition switch is in ON position. To ensure doors are locked when walking away from vehicle, push transmitter lock button once again. If doors were already locked, turn signal lights will flash. Transmitter can also be used to operate windows and moon roof.

All remote keyless entry system functions can be programmed to fit customer needs by Lexus dealer. The beep sound can be turned on or off manually. Switch is located under left side of dash.