Lexus Australia is recalling an estimated 2500 vehicles due to two separate powerplant faults.

Affecting approximately 1750 Lexus RX400h models built between June 2006 and December 2008, the first recall relates to a component of the luxury SUV’s petrol-electric hybrid system that, if overheated, may result in a loss of vehicle power or loss of drive.

According to Lexus, when towing or driven at high load, the variable-voltage electric inverter’s intelligent power module – intended to increase reliability of the inverter’s circuitry – may overheat resulting in internal solder being damaged.

2006 Lexus RX400h engine

If damaged, engine warning lights will appear on the instrument panel and the vehicle will enter a fail-safe mode allowing the vehicle to travel a short distance with reduced vehicle power.

“In the worst case scenario, the vehicle may stop while driving,” Lexus said in a statement.

The local arm of the Japanese manufacturer says owners of affected vehicles who haven’t had the engine warning lights illuminate may continue driving their vehicle, however, are advised to avoid towing or rapid acceleration situations until the vehicle has been inspected. Owners who have had the warning lights illuminate are advised to stop driving and contact a Lexus dealer.

2006 Lexus RX400h power-flow display

To rectify the RX400h fault, Lexus will replace the intelligent power module inside the hybrid inverter, taking approximately five hours, at no cost to customers.

The local recall is part of a global campaign that has seen Toyota Motor Corp recall around 141,000 vehicles in North America, 37,000 in Europe and 15,000 in Japan.

The second recall encompasses approximately 750 Lexus IS350 sedans built between April 2010 and July 2011.

Lexus IS 350 range - (l to r) Prestige, F Sport, Sports Luxury

Relating to the securing bolts of the 3.5-litre V6 engine’s variable valve timing gear potentially loosening, Lexus stresses that the recall measure is a preventive action.

If loosened, the car maker says an “engine rattle noise” may be heard, which in the worst case could result in the engine stalling while driving.

Again, while Lexus advises that owners may continue to drive their vehicles, if an engine rattle noise is experienced, they should contact an affiliated dealer.

IS 350 3.5-litre V6 engine

Lexus says in all impacted vehicles, the IS350 fault will be rectified by replacing the variable valve timing gear device, taking approximately seven hours to complete, at no cost to customers.

For each instance, Lexus is contacting owners of the affected vehicles by mail with requests made to make appointments at Lexus dealers to clear the recalls.

Lexus Australia says there have been no accidents or injuries reported locally as a result of either fault.




  • F1orce

    Mitigating the issue. Perhaps I’ll be surprised with a letter..

  • h8r

    Too funny. What’s that, recall number 72 for Toyota group in the last 10 years? What a joke.

    • Zaqw

      At least they recall and fix their problems. Unlike others

      • al

        The recalled models are built between 2006 and 2008… Took ‘em quite a long time to figure out the problem, don’t you think so?

  • pol

    I laugh off when some people go on about this “Toyota reliability”

  • Autoholic

    Unusual for Lexus to have a fault, but then most cars are not completely faultless.

  • Barry the GTi guy

    More stories of veeduds losing power. Oh wait…

  • http://toyotaownersuniteforresolutiononline.blogspot.com Charlene McCarthy Blake

    Toyota and Lexus are #1 in cases of sudden unintended acceleration and FORD is #2. The current unintended acceleration plaguing newer vehicles is the electronically-induced type. The engine throttle control systems depend on computer software to command them. Sometimes glitches occur…like in some of your other electronic devices…which can cause the command to be different than what you desire. The evidence of the glitch is often undetectable after the vehicle is restarted. Unfortunately, the EDR (black box) is not always accurate as shown by expert Dr. Antony Anderson in his analysis of a 2012 Toyota Highlander. The EDR results indicated the driver was not braking when she was doing so. The EDR results are inconsistent.

    The key to avoiding a horrific crash during a SUA event is whether or not the vehicle has an effective fail-safe in the event a glitch occurs. If it does not, as in the case of the glitch-prone Toyota ETCS-i, then the vehicle may become a runaway with an ineffective means to stop it. Unfortunately, the safety standards aren’t as strict in automobiles as they are in airplanes. Some manufacturers have more effective fail-safes than others. In the case of Toyota, an embedded software expert, Michael Barr (see Oklahoma Bookout vs. Toyota court case involving a 2005 Camry) found that an electronic glitch could induce a SUA event. Another expert, Dr. Henning Leidecker, found that a SUA event could also be triggered by “tin whisker” formation, particularly in 2002-2006 Toyota Camry vehicles.

    SUA events have been DEADLY for vehicle occupants as well as pedestrians and people in storefronts, buildings, and even homes. The numbers of such crashes are ever-increasing with the advent of the very complex ELECTRONIC throttle control systems.

    With the increase in such serious vehicle crashes, there is a concerted effort to show driver “pedal misapplication” or a “medical condition” or some other reason for the incident…anything other than a vehicle defect. Investigators aren’t scrutinizing the buggy electronic throttle control software or other conditions that can elicit a terrifying sudden unintended acceleration incident. They usually just examine the *mechanical* causes which tend to be just red herrings in these cases. Investigators simply don’t have the expertise to find such electronic glitches. In fact, the staff at the NHTSA, National Highway Traffic Safety Administration, do not have this very specialized training!

    Think of it…the next step in electronically-controlled vehicles seems to be so-called “self-driving cars.” Do YOU want to be in a such a vehicle when there is no evidence that strict safety standards, particularly in the throttle control system’s software, have been adhered to? Will you just BLINDLY trust the automaker (criminally-investigated and nearly-prosecuted Toyota and soon-to-be GM and others?) to come through for you and your family’s safety *on its own*?

    A recently published Huffington Post article by Jonathan Handel,
    How Do We Know Driverless Cars Are Safe? Google Says ‘Trust Us’
    Posted: 07/01/2014 7:23 pm EDT Updated: 07/02/2014 1:48 pm EDT speaks to these very issues and poses tough questions about Google’s “driverless” vehicles. Educate yourself carefully before you put your faith in automakers who have knowingly lied to their customers and the government for decades. Study the issue of vehicle electronic sudden unintended acceleration and ask WHY we aren’t seeing it addressed publicly. WHY is blame placed on the driver with little more than speculation about which pedal was used or with little more than an assumption on medical condition. This is being done *even when the drivers steadfastly cite a VEHICLE PROBLEM as the cause of the crash. Absence of proof is not proof of absence of a serious ELECTRONIC computer glitch or other electronically-caused SUA.

    Charlene Blake

    • disqus_opJ5VKk8FJ

      You don’t even realize this article is from a year ago. Why would we believe a word you say?

  • Azar Hadi

    So many recalls I can not keep up with the numbers anymore. I know it is about at least 10 million or more. Toyota/Lexus number one in sudden unintended acceleration and I am one out of over 2000 people who have been injured in US.

    My accident happened in 2005. I had purchased a brand new 2004 ES 330 Lexus while sitting at the red light my car took off like a rocket going through the red light. By the time I realized what was happening my car was going over 100 miles an hour and I realized that I did not have brake and I could hear the accelerator revving. All I was able to do hold on to the wheel trying to avoid hitting anyone. All I could think that my car was going to kill people. I was so fortunate that no one was kill and what eventually happen I end up on the other side of the street hitting a SUV head on totaling both cars. The dashboard fell on my legs and crushed both legs severely. The SUV driver had some minor damages. As the result of my Lexus suddenly accelerating, I have had 24 surgeries and more in future. My left leg will have to be amputated above the knee since surgery can not do any good anymore and my right ankle will have to be fused since I am in sever pain. I hope Toyota stops the lies and fix those cars rather than blaming the elderly, teens, texting, medical issues or anything else that they come up with. Sudden Unintended Acceleration is the real problem with Toyota/Lexus!!

    Azar Hadi Brannan

    • disqus_opJ5VKk8FJ

      Your driver error incident. Yes, we get it. You realize this article is from a year ago?