Toyota Prius Software Problems - READ ONLY

752 messages, Last post on Sep 10, 2006 at 5:54 PM

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#91 of 752 Prius Software and Mission Critical SCM Issues by cdptrap May 11, 2005 (1:52 pm)
Does anyone here have good experience contacting Toyota and getting meaningful response? I just receive cryptic useless message when asking about problems on our cars. As I do not yet own a Prius and only have 1 on order, I will stay on topic on Prius. Given all these "upgrade" problems, Toyota should implement a simple and well known Software SCM process targeting its customers. It should identify software version on Prius screen so owners know when to upgrade. Toyota should announce upgrade to dealership or direct mail to owners so people know to go in for upgrade. Trying to hide software problems never works and will only hurt customers. If Toyota is doing this to avoid litigation (by not admitting anything) or control cost, it will eventually end up with a big class action anyway and have its thus-far stellar reputation drag through the mud. I think Toyota does not yet realize hybrid system relies on what is called "MISSION CRITICAL SOFTWARE SYSTEM". This sometimes means if it fails its mission, people die. There is no way to hide and to shirk responsibility in such system. Toyota, just like it learnt from Chrysler about how to make minivan, should learn from Boeing or Lockheed or Airbus or NASA on how to produce, manage and maintain mission critical software. I am now nervously waiting for our new Prius. Replies to this message: cdptrap (May 11, 2005 2:05 pm) stevedebi (May 12, 2005 11:37 am) stevedebi (May 12, 2005 11:38 am)
#92 of 752 Re: Prius Software and Mission Critical SCM Issues [cdptrap] by cdptrap May 11, 2005 (2:05 pm)
Replying to: cdptrap (May 11, 2005 1:52 pm) One last note. In mission critical application, such as flight system, everything has a back-up. When the fly-by-wire system fails, there is normally something mechanical that serves as back-up. The 747's have up to 5 main systems on-board backing up each other and 20+ for everything. In the end, the pilot can still fly the aircraft by hand if necessary under "flight control jammed" conditions. May be hybrid auto manufacturers should consider such a back-up. Replies to this message: stevedebi (May 12, 2005 11:37 am)
#94 of 752 Re: Wonder if the Prius has anti-virus? [stevedebi] by sinepman May 12, 2005 (9:08 am)
Replying to: stevedebi (May 11, 2005 12:16 pm) Impossible.. already been tested and tried. Replies to this message: stevedebi (May 12, 2005 11:37 am)
#95 of 752 Re: Prius Software and Mission Critical SCM Issues [cdptrap] by stevedebi May 12, 2005 (11:37 am)
Replying to: cdptrap (May 11, 2005 2:05 pm) "The 747's have up to 5 main systems on-board backing up each other and 20+ for everything. In the end, the pilot can still fly the aircraft by hand if necessary under "flight control jammed" conditions." Yes, but it has mechanical flight linkage controls. Newer airliners have all electronic controls ("fly by wire"), and if the computer goes, and the backups go, you'd better hope you have a parachute, because that plane is not staying in the sky. The Prius is also all software controls.
#96 of 752 Re: Wonder if the Prius has anti-virus? [sinepman] by stevedebi May 12, 2005 (11:37 am)
Replying to: sinepman (May 12, 2005 9:08 am) "Impossible.. already been tested and tried. " Great news! Can you please provide a URL so that we can all see the study that was done, and examine the methodology?
#97 of 752 Re: Prius Software and Mission Critical SCM Issues [cdptrap] by stevedebi May 12, 2005 (11:38 am)
Replying to: cdptrap (May 11, 2005 1:52 pm) For those who don't know, "SCM" = Software Configuration Management. I'm surprised to find that Toyota doesn't include a software version number on the screen at startup...
#100 of 752 Bluetooth blues by falconone May 12, 2005 (5:56 pm)
Here ya go Stevedebi http://www.f-secure.com/weblog/ Replies to this message: stevedebi (May 13, 2005 8:12 pm) falconone (May 14, 2005 1:53 am)