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According to a recent report, Mazda will be installing brake override systems on all of its models in the near future. Whenever that happens, the brake will automatically get priority over the accelerator in a situation where both of them are simultaneously depressed. Nissan already has such a system installed on most of its cars, and Toyota has already pledged to do so. As far as Japan goes that leaves companies like Honda, Mitsubishi, Subaru and Suzuki in the "Undecided" column.

A Mazda spokesman said the company wasn't aware of any unintended acceleration issues with its vehicles anywhere in the world that would necessitate such a system. This really looks to be a proactive move, since the estimated $50-per-car cost of the brake override will be much less hurtful than having to recall an untold numbers of cars... and you'll be paying for it, anyway. The company doesn't have details yet on the specifics of implementation, but it will eventually apply to every car the company sells.



[Source: Automotive News – Sub. Req.]


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  • 60 Comments
      • 4 Years Ago
      It's too bad we won't be hearing in the comments that "every manufacturer had brake overrides except for Toyota" now that AB posted this.
      • 4 Years Ago
      Anything that makes driving safer for the MAJORITY of drivers, is a win.
        • 4 Years Ago
        In response to this...

        Driving school.
      • 4 Years Ago
      Most override systems recognize a "hill start" and will not kill the throttle if the brake has been applied first. In the case of the Toyota system, when the vehicle throttle is opened beyond the idle position, at speeds greater than five miles per hour and then the brakes are firmly applied for longer than one-half second, the override feature will reduce engine output to the idle position, allowing greater braking performance.
        • 4 Years Ago
        Sorry... skimmed your comment to fast... Didn't mean to basically re-state what you already stated.
        • 4 Years Ago
        Chasing emissions standards and fuel economy goals means we will never go back to throttle cables and the like. Let it go.
        • 4 Years Ago
        Not only that, but the vehicle speed sensor can tell that the car is not moving on hill-start.

        Above 5-10 mph, that is a different story.

        Vehicle data systems should be able to accomplish this, otherwise they need to go back to direct mechanical controls, and really let a competent driver's brain be completely in control, if the digital systems can't manage even rudimentary conditional awareness.
      • 4 Years Ago
      The death of heal/toe.
        • 4 Years Ago
        As mentioned, in the C&D article, people that make performance cars have found a way to implement this on cars with out spoiling their enthusiast flavor, so most likely you won't have tow worry about losing a warranty if you reflash it. So I really don't see what the problem is here. Not being able to heel an Toe in an Avalon or brake torque launch a Prius isn't going to make me lose much sleep.
        • 4 Years Ago
        For all those who mentioned Audi doing it for a decade or more: Just because Audi got it right doesn't mean every other automaker will. I wouldn't be surprised if Toyota goes with a system that cuts throttle IMMEDIATELY on the slightest touch of the brake pedal... they are likely to be afraid of a delay like Audi's... a few seconds delay could be seen by newly paranoid Toyota lawyers as a few seconds of gap to drive a lawsuit through.
        • 4 Years Ago
        No, it's not the end of heel/toe. Audis have had it for 10 years. Audis cancel the gas if you press the brake after the gas. On heel/toe you press the gas after the brake so this change does nothing. There's no reason to think Mazda will do this any differently.
        • 4 Years Ago
        People reflash ECUs all the time, right now, today - to remove things like revlimiters, top speed limiters, change air/fuel maps - etc. So removing a left foot braking limiter should be no big deal.
        • 4 Years Ago
        Well, at least that spelling of it... :-)
        • 4 Years Ago
        "People reflash ECUs all the time, right now, today - to remove things like revlimiters, top speed limiters, change air/fuel maps - etc. So removing a left foot braking limiter should be no big deal."

        It is a big deal if one buys a new car or a car that has a warranty and needs some engine work done.
        • 4 Years Ago
        You can heel-toe. Left foot braking is the casualty.

        My 2002 A4 has DBW throttle and heel toe is not a problem. It gives you a few seconds of brake before it releases the throttle. Enough to downshift but not enough to bother with trying to keep boost on.
        • 4 Years Ago
        That sucks. I stubbed my toe on the coffee table this morning, and it was healed by lunch.
        • 4 Years Ago
        OMG

        How many people use heal-toe braking. 0.005%? I guess my estimate is too optimistic. Nevermind the fact that most of manual driving folks can't use them properly anyway.
        • 4 Years Ago
        I hope it's only for slushboxes and other automatics, and not for manuals.
        • 4 Years Ago
        H-E-E-L

        OK, I deserved that.
      • 4 Years Ago
      Wise of them.
      Every car with an electronic throttle should have this.

      Protects the consumer when the pedal starts malfunctioning & protects the company from doing epic recalls.

      Toyota would be wise to do it........ *right now*.
        • 4 Years Ago
        and for every model, for chrissake.
      • 4 Years Ago
      They should keep it off of manual transmission models. The Mazda RX-8, Miata, and MazdaSpeed3 might have some drivers that want to heel/toe. Also, I would also think that anyone who drives a manual transmission would have enough sense to step on the clutch when the car starts acclerating out of control.
        • 4 Years Ago
        Enthusiasts can flash their ECUs (And potentially void their warranties) like they have been doing in the quest for more fun and more speed like they always have been.
      • 4 Years Ago
      Well, assuming there was an accelerator defect, I don't think it'd save them from recalling it... it'd just keep non-car people from crashing into innocent people.
        • 4 Years Ago
        It's so nice to know that everyone here would never ever ever make a bad decision in a panic situation.

        You know, unlike almost every other human on the face of the planet.
        • 4 Years Ago
        Nick: Adjust your parking brake.
        • 4 Years Ago
        If I remember correctly, VW/Audi's system allows overlapping brake and throttle input for a specified duration (a few seconds) before cutting in. It's not difficult to imagine it imposing itself when it's not welcome, but it's never bit me on the track--I've never even noticed it.

        I just hope Mazda isn't so hasty in its rush to avoid being smeared that it doesn't take the time to do it right. A VW/Audi-style override would be okay, but the first Miata that I can't left-foot-brake or heel-and-toe will be the first Miata I don't buy.
        • 4 Years Ago
        This should be a must!

        I'm amazed that my car moves like nothing's holding it down when I forget to loosen the parking brake.
        • 4 Years Ago
        WTH?! did you ever track/race a car?

        They better put a switch to remove this stupid brake override system.

        Otherwise no one will be able to rally, fwd drift or left foot brake anymore.
        • 4 Years Ago
        @Mehdi Cheddadi - where do you idiots keep getting that idea? I've tracked damn near every audi in production, Audi added this brake override system to their lineup a decade ago, no issues here. Why don't you answer your own question, did you ever track/race a car [with brake override]?
        • 4 Years Ago
        I think it won't be necessary to put a brake override system on manual cars since there is already a way to cancel a stuck acceleration by using the clutch. So our heel-toe fun will not be ruined. I think it is safe to assume that manufacturers won't implement this in manuals cars since it would save them money and they will think about this.
        • 4 Years Ago
        Not just tracking/racing... I use heel-toe quite a bit on the street as well. Makes a lot of sense when you need to downshift but slow down as well, so that you'll be ready to accelerate again after that person in front of you just made the right turn, while keeping your downshift smooth and without excess clutch wear.

        However, I'm glad to hear that the way Audi does it doesn't interfere in that. I hope other systems are similar in that regard (although really, it's not as necessary on a manual tranny - most any stick driver is going to insticintually hit the clutch and/or go to neutral if something where to go wrong with the throttle).
      • 4 Years Ago
      Well that should lower those "real world" Car&Driver 0-60 times where they brake and rev the engine, then release the brake. :-)
      • 4 Years Ago
      I dont know, the carbon ceramic brakes on the ZR1 are pretty good. Which gave me an idea, Toyota should put $15,000 carbon ceramic brake option on all of their $15,000 cars. That should get them stopped.
      • 4 Years Ago
      Nissan already uses this system. The 370Z actually lost a "drifting" comparison test in one of the major car magazines because this system makes it very hard to make the tires lose grip so that the car slides sideways.
      • 4 Years Ago
      Mazda might want to consider a bypass switch for track use or else Mazdas may not be the most raced brand soon enough.
      • 4 Years Ago
      ^^^ Supposed to be a reply to Clay
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