Question about 2007 Lexus IS 250

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2007 is250 battery died, then was fully chared, now the car isn't detecting the key and won't start

The lights were left on. Battery died which set off the alarm. Finally got in when we figured out how to use the manual key. Alarm turned off. We fully charged the car. Now the car won't start. It says it cannot detect the key. We've never had issues with these keys before. Help.

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  • 2,101 Answers

All new cars are set up that if the battery deads it goes into lockout mode. it is so the dealer ships can make money

Posted on Dec 16, 2012

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 18 Answers

SOURCE: car wont start

charge or replace the car battery as low volts can cause this type of fault
to move re place the battery leads turn on dash lights put foot on brake and put in in neutral as there is a elec lock on the gear stick opperated by brake padel

Posted on Jan 07, 2009

semloh1950

  • 16 Answers

SOURCE: After alarm goes off, all electrical works except car won't start

hi there
from what it sounds to me is that the alarm is still in anit theft mode
i had this happen to my vehicle

one thing you can try is lock all the doors try and unlock from the passenger side make sure that all the lock come up to the top where they should be
then try it

if that does not work then lift up the rear of the car like it was being towed and it should reset the alarm
short of that you will have to have alarm shop come to you
don

Posted on Mar 09, 2009

rgbypoet

  • 166 Answers

SOURCE: 1990 lexus ls 400 security system went off now

Okay you may want to check to see if the sensor on door lock cylinder hasn't fallen off from the lock itself. Pull of the door panels and check the wires at the door lock cylinder. Hope this helps.

Posted on Mar 25, 2010

geoff hunter

  • 4793 Answers

SOURCE: car alarm went off while unlocking the door, now

you need to reset alarm/immobiliser.lock car with remote, hold button down for 30 secs,then press/hold down unlock button,should reset.another way is with key in ignition/turned on, press alarm button down and hold for 30 secs.this resets immobiliser.toyota
systems vary..depending on market.

Posted on Mar 30, 2010

thanubian2

  • 1 Answer

SOURCE: lexus alarm

My GS 300 arlarm kept going off now for two months unless the battery is disconnected; the solution to my problem was that my key had an electrical fault. I confirmed it by placing the faulty key within a metal box or a steal pot with a heavy lid. upon doing so it stopped going off. I later purchased a new key

Posted on Jan 16, 2011

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