Apple Co-Founder Steve Wozniak Says his Non-Recalled Prius has Acceleration Problem

If Woz Tells You There's a Bug, You Better Listen
By now probably everybody reading this has heard about the massive Toyota recalls (and the now retracted comment by Ray Lahood). One of the models that hasn't been recalled is the 2010 Toyota Prius hybrid. This might soon change, though: Uber-engineer and Apple co-founder Steve Wozniak says that he found a bug, and claims he can replicate it. More bad news for Toyota?
Steve Wozniak with one of his many Prius hybrids. Photo: DigiBarn Computer Museum, CC

Woz first made this problem public in a comment on the tech-news site Slashdot in November. He wrote:

I have owned many Prius's. I currently drive a 2010 one. Let's say that I'm in some place where the speed 85 mph is legal. I can nudge my cruise control speed lever and my speed barely goes up, say from 80 to 81.I nudge at again and again, up to 83. Then I nudge it again and the car takes off, no speed limit. Nudging the cruise speed control lever down has no effect until I've done it about 10 times or more. By then my Prius is doing 97. It's scary because it's so wrong and so out of your normal control. I tested this over and over the night I observed it.

It's scary because you don't think of things like putting the car in neutral when this happens. I am sure you can't turn the car off with the keyless power button, the only option on this model.

Braking does disable this scary cruise control effect. It is a natural response, so the problem is mitigated a great deal.

I have not seen this happen before so I think it's new to the 2010. I have the package which includes parallel parking assist and cruise control distance limiter.

He then mentioned it again at the Discovery Forum 2010, saying that "Toyota has this accelerator problem we've all heard about. Well, I have many models of Prius that got recalled, but I have a new model that didn't get recalled. This new model has an accelerator that goes wild, but only under certain conditions of cruise control. And I can repeat it over and over and over again--safely.
This is software. It's not a bad accelerator pedal. It's very scary, but luckily for me, I can hit the brakes."

Our friends at Jalopnik ran the story, and Woz wrote them with more details. The latest is that Toyota will borrow Woz's Prius for a week to try to replicate the problem.

But usually when Woz says something is broken, it is. Should we expect another recall? Owners of 2010 Prius hybrids should probably keep an eye open for a new recall.

Update: NHTSA to Look Into 2010 Toyota Prius Braking Problems

Via Jalopnik, Slashdot
More Toyota
Toyota Will Increase Hybrid Production to 1 Million Units Per Year in 2011
2010 Detroit Auto Show: Toyota FT-CH Hybrid Concept Might Join Prius Family
Toyota Will Sell Plug-In Hybrid Prius in 2011, Urban Commuter Electric Car in 2012

Related Content on