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Toyota Highland Hybrid Steering and Suspension Questions
I own a 2006 Toyota Highland Hybrid with 54K+ miles on it. Last week my power steering failed. Fortunately I was only trying to back out of my parking space and not driving down the interstate. I had the vehicle towed to a local Toyota dealership. Initially they said they had never seen this problem before and were unable to diagnose the problem. After a couple hours they said they would have to call the technicians in California and since there was no telling when they would call back they put me in a rental car at my expense. The following day they called to tell me they needed to replace my power steering rack and since the vehicle was no longer in warranty (less than 3 years but over 36K miles) the repair costs would be $1,840. I’ve owned many cars in my life with many more miles on them than this and I’ve never had a power steering failure. I started to do some internet research and found this is definitely not an isolated incident. There are numerous reports of similar failures on both the 2006 Highlander Hybrid as well as the 2006 Lexus 400h hybrid SUV. The National Highway Traffic and Safety Administration (NHTSA) opened an investigation into the defect in Nov 2006. In response to a request for information to support that investigation, Toyota reported there had already been 109 warranty claims related to the electronic power steering assembly on the 2006 HIHY. Unfortunately the investigation was closed in Mar 2007 without a recall because the defect seemed to only occur at no or low speeds and didn’t result in a loss of steering control. I’d like to try and find out the magnitude of the problem. Toyota reported 109 warranty claims as of Nov 06-Mar 07. How many have there been since then? How many non-warranty claims such as mine? On both the Highlander and the Lexus 400h? It’s certainly more than 109 and it sure seems like it’s a matter of when your power steering will fail and not if. Remarkably, after 109 warranty claims, I can find no evidence that Toyota even had the decency to issue a technical service bulletin. I would encourage everyone who has experienced this problem to file a complaint with both the NHTSA (http://www-odi.nhtsa.dot.gov/) as well as the Center for Auto Safety (http://www.autosafety.org/). Perhaps the NHTSA will reopen the investigation if enough consumers report the problem. The Center for Auto Safety will ask if you want to be part of a class action suit if you report your complaint through their web site.
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We just bought a 2006 HH Limited, AWD. During the test drive we noticed it pulled to the right just a little. The dealer gave us a "We Owe" ticket. However it is a Chevy dealer, not Toyota. I want to know if there are any concerns on a wheel alignment for a hybrid vs. non-hybrid. Are we better off going to a Toyota dealer? Would like to stay at the Checy dealer for this repair cause they'll do it for free.
The RXh/HH electric power stearing is already known to be of marginal design. It will actually go into degraded/derated performance mode AUTOMATICALLY if you cause it to overheat by...
"USING IT TOO MUCH".
Buyer beware...!!
So far, our '06 is doing fine, knock on wood!
Our '06 HH is driven often in average 95-F heat (on average) during hot summer months in central CA. During CA heat wave like the one that just passed, daily temperature soared to 105-115 F. We also often drive HWY 5 between LA and SF Bay Area and the Redding region. Everyone who knows that route knows how hot HWY 5 gets in the summer. Average is around 100+ F from LA up into Redding.
We also crawl at low speed on ranch roads in >95-F often enough, no sign of steering problem yet coming on 45K miles, knock on wood.
I thought the engine would be much hotter than ambient temperature. If the car is moving, air flow should cool everything to some degree? Why would high heat cause steering problem in the HH?
Sure hope this is not some systemic problem though.
I have not yet received a call from Toyota but I can tell you I am not happy and will be a lot less happy if the repair bill is close to $2,000.
Prior to this incident there were a few times that I though the car turned a little hard but it didn't seem to last so I wasn't concerned.
I will post the repair corrective action as soon as I hear from the garage and will follow up with the appropriate agencies as soon as I have a diagnosis from Toyota.
There appears to be an additional problem in that when it is operating in the substandard state more MUSCLE is required of the driver and EXTENDED muscular effort will/might actually bend the torque tube out of alignment. In some cases this has actually resulted in the electric assist operating OPPOSITE the driver's turning of the stearing wheel.
Especially HOT day, HOT surrounding landscape/roadbed, yes, the power stearing will be more prone to going into substandard, low assist, mode.
I will be sure to post any problem we encounter in our '06. It is approaching 47K miles now. We are in southern SF Bay Area and just got hit by another heat wave, local temperature at our site was 109 today. It is normal for Summer to be in the mid-90's to low 100's in our neck of the woods. We also drive I-5 a lot and it can be baking in smoggy foul air at 100+ while the coast is blanketed by cool clean foggy air. So far, so good; knock on wood!
I do have to say that the local Toyota dealership could not have been nicer and were very accommodating on the trade in etc.
Would I consider a future hybrid - YES. Unfortunately the finances just did not work out for one this go around. Since the RAV4 grew up we almost have the same interior space as we did with the Highlander (which now has grown up more).
Has anyone had all the repairs and are still driving? If so are you experiencing any further problems? I would love to trade it in (as I'm not to trusting of it right now) but it's the limited with bells and whistles and no way could we afford to get a different vehicle right now.
I grew up with Toyota's and this is the first problem I've ever experienced besides the normal wear and tare. The garage that is fixing it has been great, thus far.
The only other control input, indirect input, would be the VSC ECU telling the electric power stearing to not provide "aid", stearing assist, if your own stearing wheel input might exacerbate the current YAW situation.
There are posts here and there on the internet indicating that the torque tube can be "over-twisted" temporarily or in at least one case permanently. Over-twisting puts the synchro outputs out of phase and that apparently results in the electric power stearing actually providing power assist in intermittent opposition to your own stearing wheel inputs.
The one permanent torque tube over-twist resulted in HARD manual forces being applied to the stearing wheel with the electric system having previously failed and the need arose requiring a HARD stearing application.
So be careful just how HARD you force the stearing wheel if you have electric power stearing assist.
For sale at $19K was one owner, apparently gently used, 3-1/2 yr old 2006HH Ltd with 50K mi on odo. Car had 50KMi service just done at Toytoa and new battery installed.
I prearranged a used-car inspection service at another Toyota dealer in Mesa, AZ -- about a 15 mile city street and freeway drive -- so I could see how the car drove and have it inspected by a stranger to the seller. Noted that steering feel was exceedingly light. Car went where pointed, but just no feedback from the road. Not at all Tyota-like.
To make story short, arrived at 10:30am for scheduled appointment and met my service writer who didn't know me from Adam, at a company I had never been to before (Earnhardt Toyota) and at one I would likely never visit again since it sat 400 miles from home.
First thing he did was check vin, mumble something about a steering recall, check the computer and tell me that Toyota has a recall on steering rack on certain HH and this one was included in that recall. Estimated 6hr labor and Toyota was supposedly footing a $1500 labor bill plus parts and part of the recall was a complete alignment when work was done.
He said that now they had their hands on the car, it couldn't leave without the work being completed, and the old removed steering mechanism had to be destroyed so it didn't make it to the used part market.
In response to my comment I had to go back to Las Vegas that afternoon, he had a rush service started -- supposedly two Toyota Master Mechanics to work on the car -- and 2 1/2 hrs later I had the car back, newly aligned and they even completed the used-car inspection I originally ordered.
Greatest service experience I have had from a Toyota dealership in I don't know when.
If you live near Phoenix AZ (Mesa) I don't thinkyou'll go wrong at Earnhardt Toyota.
Drove back to Las Vegas that afternoon over a combination of Freeway, and two to four lane country roads at speeds ranging from 35 to 80 and at the end of the 351 mile trip, averaged 28mpg paying no particular attention to whether I was using the hybrid technology to its optimum or not.
I think I made a great choice.
Chuck
I'm glad it all worked out for you. Enjoy your HH. Other than this one expensive issue I've thoroughly enjoyed mine.
Chuck
If that doesn't solve it I might want to have the Toyota dealer see what else might be wrong. I'm guessing it's just alignment which should probably be performed annually anyway.
Oh, get it done soon as a bad alignment won't take long to ruin a set of tires and that cost would be yours.
Thank you for this posting on the recall. Im from the Netherlands and in my stock I have a USA bought Highlander wich is from 2006 and it has now 600 miles on it. I bought this vehicle because we went thru a tax reform here in the Netherlands that made it more interesting to run hybride vehicles. At that time we only had 2 brands / types hybrides on the market overhere ( Toy Prius and Honda Civic ). The experiment only partly worked out, we were to busy etc so the Highland went into the warehouse and now the powersteering is not working anymore. Im happy you posted about the recall and I looked into the partssystem to find that Toyota changed the partnumber on the steeringrack assy twice. Going from my more than 30 years Toyota expirience this usually means an upgrade on the existing part or a change of supplier. Lexus RX400H has the same partnumber and changes.
If anybody has the original recall info available I would be grateful because I have to get that highlander back on the road again.
With best regards, Maarten
Hope this helps.
We noticed what appeared to be a slight pull to the right a little over a year ago. Toyota said "It's normal" but we had an alignment performed anyway (Jan '09). We also had the original Integrity tires on it and when they wore down prematurely, Goodyear was kind enough to provide us a "wear credit" of 60% the value of the original tires so we got a new set of 60K mile Fortera Triple Tread tires.
We may have been more fortunate that others here as we were notified by Toyota April of this year ('09) of this TSB and at the time we had only 44K miles on the car. The service was performed and they even provided us a rental car as we arranged everything in advance. Not another thought was put into it UNTIL this past weekend when my wife mentioned that the car had been getting a "shimmy" between 30MPH and 45MPH but now it was staring to occur even at regular highway speeds now.
So, I took a look at the car and I'll be darned if the right front tire isn't starting to show excessive signs of wear. I checked service records and verified that we have rotated these twice now since the TSB was performed so I was wondering if the dealership performed the alignment that was (apparently) REQUIRED as a portion of the TSB. A quick check of the service report from than work verified that no alignment was executed at that time so it is entirely possible that this is simply an alignment issue post-TSB service. At least that is what we are hoping it is.