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Lexus RX 400h Electrical/Lighting Questions

28 messages,  Last post on Feb 17, 2009 at 1:25 PM

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What is this discussion about? Lexus RX 400h, Lights, Electrical, Hybrid Cars, SUV

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#19 of 28 Re: HID light protection [lexrexblue] by krellu Feb 15, 2007 (3:20 am)
Replying to: lexrexblue (Feb 14, 2007 4:26 pm) Have a grill guard installed.
#20 of 28 Re: Cold weather can do that [pf_flyer] by myhybrid Feb 16, 2007 (4:36 pm)
Replying to: pf_flyer (Feb 14, 2007 5:16 am) Thanks for the insight on the battery. Again on the mileage question - is 19-22 a normal range for the winter? I used to get 27-29 easily during the past year. No matter how I cautious/concientious of a driver I am, just cannot get over 22. Replies to this message: herbrak (Jul 26, 2007 1:22 pm) wwest (Jul 28, 2007 3:48 pm)
#21 of 28 Battery Does Not Fully Charge by supcomm Jul 20, 2007 (8:20 pm)
The battery indicator show only 6 bars out of the 8 total as being charged. No matter how long I drive, I cant get the last 2 bars to show charged. Anyone know why this is or has this problem? Should I take it back to the dealer? Thanks.
#22 of 28 Re: Cold weather can do that [myhybrid] by herbrak Jul 26, 2007 (1:22 pm)
Replying to: myhybrid (Feb 16, 2007 4:36 pm) To heat the car interior in the winter the ICE must heat the radiator coolant which is the source of the heat. So in the winter the ICE must run until that has happened. In the warm weather there is no need for that initial heating phase. So better mileage in the warm weather. Air conditioning is electric so the ICE does not need to be running. 2006 400h - original model Replies to this message: wwest (Jul 28, 2007 3:48 pm)
#23 of 28 Re: Cold weather can do that [herbrak] by wwest Jul 28, 2007 (3:48 pm)
Replying to: herbrak (Jul 26, 2007 1:22 pm) In reality the way the climate control system works (reheat/remix airflow) in summertime "cooling" mode the engine coolant must also be up to nominal 180F temperature. And if Lexus has adopted, licensed, the Ford safety oriented hybrid techique patent then you will have less recharging via regen braking during colder weather.
#24 of 28 removeum by removeum Oct 19, 2007 (7:47 pm)
Ford is using Toyota's 1st generation hybrid system. Replies to this message: stevedebi (Feb 05, 2009 1:55 pm) wwest (Feb 06, 2009 10:53 am) stevedebi (Feb 17, 2009 1:25 pm)
#25 of 28 Relay failure/Partial charge of hybrid battery by gladams1 Jan 18, 2009 (11:24 am)
In December I experienced a disabling failure of my 2007 400h. When I tried to start it, the cooling fan came on at high speed as well as a host of warning lights. The vehicle had to be towed to a Lexus dealer. They had never encountered this problem before. Eventually they determined that a relay had failed that prevented power getting to the hybrid system. Has anyone else experienced this problem? Were there any additional consequences? It has certainly shaken my faith in Lexus.   Also, since the event occurred I have noticed that my hybrid battery no longer fully charges. The battery display never indicates more than 6 out of 8 bars. I start at the top of a long hill with 6 bars, and it still shows 6 bars at the bottom of the hill.
#26 of 28 Re: removeum [removeum] by stevedebi Feb 05, 2009 (1:55 pm)
Replying to: removeum (Oct 19, 2007 7:47 pm) "Ford is using Toyota's 1st generation hybrid system. "   Wrong.   Ford independently developed their hybrid system, but the two technologies were very similar.   Toyota and Ford SHARE patents between them, which means that Toyota is using Ford technology, and vice versa.   There are also a number of hybrid patents Ford does not share with Toyota, which are being used in the FEH. Replies to this message: wwest (Feb 06, 2009 10:53 am) stevedebi (Feb 17, 2009 1:25 pm)
#27 of 28 Re: removeum [stevedebi] by wwest Feb 06, 2009 (10:53 am)
Replying to: stevedebi (Feb 05, 2009 1:55 pm) The way I read the news back at the time when the Prius was already in the market Ford was restrained by Toyota from marketing the Escape until a patent license agreement was made.   So, no Ford patents were required for the original Prius but Ford REQUIRED Toyota patent licensing for the Escape. Replies to this message: stevedebi (Feb 17, 2009 1:25 pm)
#28 of 28 Re: removeum [wwest] by stevedebi Feb 17, 2009 (1:25 pm)
Replying to: wwest (Feb 06, 2009 10:53 am) "So, no Ford patents were required for the original Prius but Ford REQUIRED Toyota patent licensing for the Escape. "   My understanding is that they traded patent licenses, rather than any payments. Thus Toyota WANTED patents owned by Ford.   Toyota made the Prius first, while Ford was concurrently developing the FEH, so of course they would go to Ford with discussions rather than vice versa.   But in any case it is vastly different from Nissan (for example), which out-and-out licenses the Toyota HSD for its hybrids. Ford did the development, not copied the design.

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