Hybrid Technology Unique topics related to the 2004 -2009 RX400H model hybrid drivetrain and other features/options found only on the RX400H. Please use the main forum for discussion about shared components with other second generation RX models.

Rx400h wont start!

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Old 10-25-10, 11:58 AM
  #1  
akkeith
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Default Rx400h wont start!

My wifes 2008 RX400H wont start at times. For example it would not start last night so she got a ride home then the next morning we went to get it and it started. It has done this several times over a year now where sometimes it will start if left for awhile or if I jump it or if I put a charger on the battery. Any ideas whats up?
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Old 10-25-10, 02:19 PM
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billy44bo
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Have you had the 12v battery check ? could it be going bad. Take it to Lexus and make them fix it

Last edited by billy44bo; 10-26-10 at 12:02 PM.
Old 10-25-10, 06:49 PM
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TrendyTodd
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^^^ +1. I had the same problem with my 06 RXh. Replaced the battery and all is good now. Your 08 battery should still be under warranty. I chose to simply upgrade my battery with an Optima yellow top because I'm running alot of electronics.
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