- #25 of 52
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New 2007 RX400h Stuttering/Hesitating, etc
by apg97ss
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Jan 29, 2007 (12:09 pm)
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since this topic board has been silent for awhile, maybe i am unlucky one. we have 2 week old RX400h and it hesitates, stutters, lacks power, etc at about 40mph and certainly at 60mph. this is happens at tame driving (i'm not pushing it). power meter oscillates up and down when all this going on. visiting service department tonight. if i get the 'this is normal' talk, i won't be happy. will let you know what happens.
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- #26 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [apg97ss]
by katzjamr
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Jan 29, 2007 (3:17 pm)
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Replying to: apg97ss (Jan 29, 2007 12:09 pm)
there is a known problem with a few of the 400h suv's that causes this stuttering at around 40 mpg, some can be reprogrammed however i would insist that factory reps, not the dealer go over your car as more extensive replacement of parts may be needed. i would drive another demo 400h if you want, i doubt it will have the same issue. btw i am assuming you dont drive with your left foot on the brake and right on the gas as the drive by wire system will have problems with this. sorry you are having this issue with a two week old vehicle. perhaps you can get a loaner 4ooh while yours in the shop to compare over a longer term.
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- #27 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [katzjamr]
by apg97ss
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Jan 29, 2007 (8:46 pm)
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Replying to: katzjamr (Jan 29, 2007 3:17 pm)
Thanks for advice. will let you know how it goes. btw i am a one foot driver, and the foot is fairly light at that, so that is what is concerning. i'm not trying to win Indy, just cruise the highway at moderate speed, save gas, and have less tail pipe emissions. not fun to have the engine revs oscillating down the road in the process
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- #28 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [apg97ss]
by apg97ss
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Jan 30, 2007 (6:59 am)
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Replying to: apg97ss (Jan 29, 2007 8:46 pm)
Unfortunately, prediction came through. Dealer saying 'they can not duplicate problem.' Will escalate. Not happy.
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- #29 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [apg97ss]
by eshapir
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Jan 30, 2007 (10:23 am)
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Replying to: apg97ss (Jan 30, 2007 6:59 am)
I can tell you that I felt a slight hesitation/oscillation when we first drove the car. We're up to 600 miles now and its totally gone away. I believe that during the first few hundred miles the car is analyzing the proper air/gas mix and I chalked it up to that.
Hope your situation improves.
Ethan
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- #30 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [eshapir]
by apg97ss
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Feb 06, 2007 (5:21 am)
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Replying to: eshapir (Jan 30, 2007 10:23 am)
Thanks Ethan
Yes, car now has 2,000 miles and has gotten better. Problem before was that at cruise at about 60 mph with constant gas peddle, power would oscillate up and down. Power still feels a little off, but oscillation is gone.
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- #31 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [apg97ss]
by gtoph
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Feb 06, 2007 (8:27 am)
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Replying to: apg97ss (Feb 06, 2007 5:21 am)
Our 07 is still a baby with only around 350 miles on it, but I haven't notice any of the issues posted in here (knock on wood). I can tell when the ICE shuts on/off, but it's pretty minor and I wouldn't consider it out of the ordinary.
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- #32 of 52
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Oil Changes
by solar2000
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Feb 09, 2007 (6:06 am)
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Where do you get oil changes once your warranty runs out? I guess its possible that its too early since the rx400h just came out last year? But I'm guessing they probably have to be done at lexus? and how much are they usually? thanks!
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- #33 of 52
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Re: Oil Changes [solar2000]
by hilandr05
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Mar 04, 2007 (5:18 am)
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Replying to: solar2000 (Feb 09, 2007 6:06 am)
Since the RX400h has the same powertrain as the Toyota Highlander Hybrid, I take my 400 to a Toyota dealer that is closer than the Lexus dealer and MUCH less expensive. I got the oil and filter change yesterday for $27.12, including tax. I have over 16,000 miles on the 400 and this is my third oil change at the Toyota dealer.
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- #34 of 52
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Re: New 2007 RX400h Stuttering/Hesitating, etc [apg97ss]
by hilandr05
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Mar 04, 2007 (5:21 am)
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Replying to: apg97ss (Feb 06, 2007 5:21 am)
I have over 16,000 miles on my 400h and have never experienced this problem. If anyone else has it again, try turning on the cruise control on a level road and see if there is any difference under cruise control.
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