Last post on Jul 18, 2013 at 10:46 PM
You are in the Lexus RX 400h
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Lexus RX 400h, Electrical, SUV
#33 of 110 Re: '06 Highlander and Lexus Inverter Problems [maryland_john]
Aug 19, 2010 (4:02 pm)
I'm beginning to think I have the same problem.. I bought our 2006 rx 400h with only 6600 miles on it from the Lexus dealer. It now has about 60k on it.
It started having starter battery troubles almost immediately. Had to be jumped if I left the four-way flashers on for a few minutes, and would not start occasionally, so I took it in several times to dealer and they said they couldn't replicate the problem, that it operated normally while it was in the shop. Finally, it wouldn't start in their driveway and they quickly put in a new small battery (the starter battery).
It's been fine now for a couple of years, but last week it started acting funny, wouldn't start first try, and would tell me I needed to shift to "park" before starting, well, I was in "park"!! Then I jumped it and it ran fine a few days. Now it won't start unless I jump it. Am taking it in tomorrow.
I'm curious, maryland john.... how did you come by the VIN break list? I'd like to walk in the Lexus dealer tomorrow AM, armed with as much ammo/info as I can. I don't want the same run around as I got in the past.... thanks
#34 of 110 Lexus 400h Battery Invertor
Aug 31, 2010 (7:08 pm)
Driving off a stop light and the car just died. Check AWD - CVT - Hybrid system warning lights went on . Towed to dealer next morning and they called to say lucky it is under warranty ( I have 64000 miles , warranty is 70 k ) and it needs a new invertor. I have not seen bill but here it is $ 7 to $ 9000 Yikes ! This is a problem as it shakes my faith in Lexus Bought from USA to bring to Canada and relied on toyota - Lexus brand Will report to NHTSA and Canada Transport as this should not be happening and from what I can see the toyota lexus hybrid system needs a longer warranty !!!!
Spread the word !!! Complain !!!
#35 of 110 Re: Lexus 400h Battery Invertor [kimcanada]
Sep 01, 2010 (7:30 am)
Kim, What year is yiur RX 400 ?
Regards , Luke
#36 of 110 Re: Lexus 400h Battery Invertor [kimcanada]
Sep 01, 2010 (10:33 am)
Yikes! $9K for a single bad part on the RX 400h?
Thought about buying an RX 400h, but now no way!
Thanks for your info. Wonder if the Prius has same problem?
Let us know if Toyota changes the design.
#37 of 110 RX400h Invertor
Sep 07, 2010 (1:59 am)
My RX400h failed last week with same messages - Check VSC / Hybrid System Failure. Thankfully the car was coming out of a parking space at the time. Dec 2005 model with 35000 miles. No power other than from 12 volt battery which rapidly drained. Was towed to Lexus by AA. Diagnosed as a Power Invertor failure (£2800 for parts, ex labour). Thankfully within the warranty period for the powertrain. Very disappointed that Lexus claim this was an unusual case - not so after reading this forum.
#38 of 110 Re: Lexus 400h Battery Invertor [kimcanada]
Oct 20, 2010 (9:21 pm)
It was a 2006 lexus rx400h with 60,000 miles . The current inverter blew and the dealer would say exact amount but cost was in $9 to 12000 range. They did say it was replaced with an " Updated Inverter /converter unit " that has a metal body and is heavy duty. Clearly Toyota - Lexus knows this is an issue , ask them . Thank goodness they were decent and replaced it under the 100,000 hybrid warranty. Have not found any other issues with Lexus Hybrids but am keeping on the look out. I am very happy with the car but don't want to have an unreliable car. I did report to NHTSA.
#39 of 110 Re: Lexus 400h Battery Invertor [kimcanada]
Oct 21, 2010 (9:14 am)
Whew! That's an expensive repair part! Glad to hear that Toyota took care of the problem and it's covered under their 100K mile drive-train warranty.
I have seriously been considering purchasing a 400h (most likely one that is 3 to 4 years. But I have put it off because of concern with this problem.
Thanks for making us aware that this problem exists. Hopefully Toyota will replace all of these $$$$ inverter/converters in future models. Wonder why it's not a recallable item?
John in Sunny Southern Cal
#40 of 110 Lexus RX 400H Inverter
Feb 25, 2011 (9:08 am)
Like many others on this site, my inverter has just 'gone' and the vehicle warranty only covers it to 60k and I have 70k on the clock - on a 2006 model...... Quote for the job including VAT and labour £3700..... the last time I had a quote for an auto "part" this expensive, I could drive it away! Just waiting to see if Lexus will "chip-in"..... I will let you all know how I get on!
#41 of 110 2006 RX400h disabled, multiple times!
Feb 28, 2011 (3:56 pm)
I am having the same problems as all the above posters. My vehicle multiple times has had this scenario of randomly shutting down and displaying all dummy lights! with the OBD display reading "Check hybrid system", "Check AWD System", "Check Traction Control" with all warning lights on. The vehicle will have electrical power but motor will not crank or turn over. A few times I was able to disconnect negative battery terminal (to make it lose memory) and it worked. Recently it's happened several times in a short period with this past week several times in one week. The first time I brought it into lexus back in 2009 they said I simply "need a new battery". So I bought one and things were ok for about a year until it happened again. It happens when "seasons or temperature spikes suddenly". Very Odd. Lexus service is telling me to file an "insurance claim" just to begin the "diagnosis". They state they found 1/2" of water near the hybrid battery under rear seat with no source yet to be determined..I'm very unhappy! Will post as details unravel themselves!
#42 of 110 Re: Lexus RX 400H Inverter [clivefcroft65]
Mar 06, 2011 (11:42 am)
Please let me know what Lexus agrees to do to fix this problem. It sounds like a design flaw.
My wife and I had decided on purchasing a low-mileage Lexus 400h but after hearing this we definitely will not purchase a 400h.
Wonder if the Prius has this same problem? If anyone knows, please advise as that will be our next choice.