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  • William Maley
    William Maley

    GM to Offer Stop-Start on Most of Their Lineup By 2020

      Your future GM vehicle will likely have a Stop-Start system

    General Motors is planning to expand the use of start-stop systems across most of their range by 2020 in an effort to improve fleetwide fuel economy. The plan will see at one powertrain combination offered in a vehicle to have this system. Stop-start systems work by turning off the engine when the vehicle isn't moving. When the driver removes his/her foot from the brake, the engine will kick back on.

     

    This move comes as the EPA will start handing out credits towards compliance with corporate average fuel economy standards to automakers who use this system in their vehicles next year.

     

    "Everyone will end up adding start-stop. Now there's a benefit in the EPA cycle, which there wasn't a few years ago. GM's new nine- and 10-speed automatic transmissions have been engineered from the beginning to incorporate start-stop. That will make it much easier and much smoother. That's what's been the holdup. First it was a regulatory issue, then it was a hardware issue," said AutoPacific analyst Dave Sullivan.

     

    GM spokesman Tom Read tells Automotive News that vehicles equipped with the stop-start system will use absorbent glass mat batteries (AGM) and tandem solenoid starters to enable faster and smoother restarts.

     

    Source: Automotive News (Subscription Required)

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    a friend took me in his 14 malibu for a ride and it had start stop......worked pretty well.  

     

    All that said, I WANT A SWITCH TO TURN IT OFF IF I WANT.....

     

    reasons- 

     

    winter (i don't care that it turns itself off at a certain temp)

    when your car ages and may have trouble running, why would you want something that deliberately shuts off the car

    continual stop and start is hard on vehicle components and fluids, turning off start stop would reduce wear

     

    Not being able to turn off the start / stop = federal overreach

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    Your final point about reducing wear is exactly backwards and out of date. The GM system keeps the oil pressurized, The engine fires nearly instantly with direct injection, and in the case of the BAS system, the regular starter is not used.

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    Wonder how well it will hold up over time...

     

    Thinking it should last 200k like the rest of the car....

     

    In the eAssist systems, it's just a giant alternator that can also be a 15 horsepower electric motor, attached to the crank pulley via a thicker than normal serpentine belt.  The technical difference is so minor..... it's nothing to worry about.  The current start/stop system is just the old eAssist system with a smaller battery and smaller alternator/motor which doesn't assist the engine during acceleration.

     

    Given all of GM's other troubles over the past 10 years, the fact that we've heard basically nothing bad about the reliability of eAssist should tell us something. 

     

    That said... this announcement sounds like a different setup than the eAssist in that it runs through the transmission instead, making it more of a traditional starter.

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    Your final point about reducing wear is exactly backwards and out of date. The GM system keeps the oil pressurized, The engine fires nearly instantly with direct injection, and in the case of the BAS system, the regular starter is not used.

    That is very good to know.

     

    Although I would still appreciate a switch to be able to turn it off. And if the system is as seamless as they make it sound, then I'll never turn it off. 

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    Your final point about reducing wear is exactly backwards and out of date. The GM system keeps the oil pressurized, The engine fires nearly instantly with direct injection, and in the case of the BAS system, the regular starter is not used.

    That is very good to know.

     

    Although I would still appreciate a switch to be able to turn it off. And if the system is as seamless as they make it sound, then I'll never turn it off. 

     

     

    It takes about half a day to get used to it.... and that was even on the jittery Benz version.

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    Your final point about reducing wear is exactly backwards and out of date. The GM system keeps the oil pressurized, The engine fires nearly instantly with direct injection, and in the case of the BAS system, the regular starter is not used.

    That is very good to know.

     

    Although I would still appreciate a switch to be able to turn it off. And if the system is as seamless as they make it sound, then I'll never turn it off. 

     

    same here, it should be user control.

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    Let me make this clear from the start I am not a fan of the start stop.  I too wish for a delete button. 

     

    Now let me get to the truth about the system. GM has one of if not the best system out there. It is smooth and is pretty much not noticeable unless you really are looking for it. [Even I have to admit my reluctance is petty] 

     

    The cars today get up to temp in the matter of a mile or so and will get to temp even faster moving ahead. Fast warm up is key to lower emissions and that is a focus of all companies. 

     

    The system has proven durable in the older cars and trucks with it. While rare they have not seen any major issues. 

    Wear is a falsehood by those who really are not up on the system or systems out today. 

    The delete button is much like the Skip shift. It has to be on full time to be considered by the EPA to get the MPG listed. Now with that said I would not be shocked if Jet or Hypertech may make a OBDII plug in that may defeat the shut down if you so choose. GM will not fight them on it in the aftermarket. 

     

    The only real negative is if something does go out it could be a bit pricey to replace but on today's cars most things are pricey. But even then how often have you had to replace a starter lately. I have had going on 30 cars over the years and only had two go out on late 68 and 70 Chevy. 

    It has gotten to the point where cars may run longer but when they do wear parts out their worth is less than the value of a change of a cam belt or other mechanical issue anymore. I suspect the used car market may be in for some changes with high mileage hybrids and higher tech cars in need of repair. 

     

    Many will be parted out and may lead to even more salvage parts being sold by dismantlers.

     

    As for the stop start it is seen where most companies will have it on 75% or more of their cars from most MFG. The deal is you are going to get it no matter if you like it or not.  

     

    At some point these will become the norm and we may notice more the cars that do not shut off than the ones that do. 

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    Wonder how well it will hold up over time...

     

    Thinking it should last 200k like the rest of the car....

     

    In the eAssist systems, it's just a giant alternator that can also be a 15 horsepower electric motor, attached to the crank pulley via a thicker than normal serpentine belt.  The technical difference is so minor..... it's nothing to worry about.  The current start/stop system is just the old eAssist system with a smaller battery and smaller alternator/motor which doesn't assist the engine during acceleration.

     

    Given all of GM's other troubles over the past 10 years, the fact that we've heard basically nothing bad about the reliability of eAssist should tell us something. 

     

    That said... this announcement sounds like a different setup than the eAssist in that it runs through the transmission instead, making it more of a traditional starter.

     

     

     

    Yeah, kinda what I figure as well. GM does not always tend to be on the forefront of stuff, but tends to make sure it is right and solid when it comes out....

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    Let me make this clear from the start I am not a fan of the start stop.  I too wish for a delete button. 

     

    Now let me get to the truth about the system. GM has one of if not the best system out there. It is smooth and is pretty much not noticeable unless you really are looking for it. [Even I have to admit my reluctance is petty] 

     

    The cars today get up to temp in the matter of a mile or so and will get to temp even faster moving ahead. Fast warm up is key to lower emissions and that is a focus of all companies. 

     

    The system has proven durable in the older cars and trucks with it. While rare they have not seen any major issues. 

    Wear is a falsehood by those who really are not up on the system or systems out today. 

    The delete button is much like the Skip shift. It has to be on full time to be considered by the EPA to get the MPG listed. Now with that said I would not be shocked if Jet or Hypertech may make a OBDII plug in that may defeat the shut down if you so choose. GM will not fight them on it in the aftermarket. 

     

    The only real negative is if something does go out it could be a bit pricey to replace but on today's cars most things are pricey. But even then how often have you had to replace a starter lately. I have had going on 30 cars over the years and only had two go out on late 68 and 70 Chevy. 

    It has gotten to the point where cars may run longer but when they do wear parts out their worth is less than the value of a change of a cam belt or other mechanical issue anymore. I suspect the used car market may be in for some changes with high mileage hybrids and higher tech cars in need of repair. 

     

    Many will be parted out and may lead to even more salvage parts being sold by dismantlers.

     

    As for the stop start it is seen where most companies will have it on 75% or more of their cars from most MFG. The deal is you are going to get it no matter if you like it or not.  

     

    At some point these will become the norm and we may notice more the cars that do not shut off than the ones that do. 

    yup, and despite all that, like a traction control switch, it still would be desired to have the control to turn it off.

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    I am so glad the 2016 Spark has a switch to turn off the traction control to enable more epic burnouts and a better chance of continued forward motion in deep snow, sand or mud.

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    I would definitely weigh it as a negative in any future purchase.

     

    Well by then it will be like Seat Belts as you may not have many options otherwise.  

     

    This is an industry wide deal and it is going to be found nearly everywhere. 

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    I would definitely weigh it as a negative in any future purchase.

     

    Well by then it will be like Seat Belts as you may not have many options otherwise.  

     

    This is an industry wide deal and it is going to be found nearly everywhere. 

     

    And seat belts can be worn or not worn. ;) (legal ramifications are another story) 

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    I would definitely weigh it as a negative in any future purchase.

     

    Well by then it will be like Seat Belts as you may not have many options otherwise.  

     

    This is an industry wide deal and it is going to be found nearly everywhere. 

     

    And seat belts can be worn or not worn. ;) (legal ramifications are another story) 

     

     

     

    The bottom line is legally they will have to have it with no defeat switch to count as a EPA boost to MPG. 

     

    No different than the skip shift on the Vette. 

     

    Now I can see a plug in for the OBDII that could disable it. The after market will provide what the MFG can not do. 

     

    In other words don't get worked up over it as there will be a work around. Besides by the time you buy one they may be very common and well sorted. I hate it too but I have seen these dilemmas come and go many times. 

    Good god the people got their panties in a wad over cars with Fuel Injection when it came out. It was Oh my god we will never be able to modify them again. Well Look around now. 

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    I hope there is an off switch as well.

     

    These are good for time you sit a long time at a red light, or sit in a fast food drive through or something like that when you are doing mostly sitting.  But they they start shutting the ending off for 2 seconds at a stop sign they get annoying.

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    I had a '16 Malibu in Ohio last week, the start/stop was pretty smooth and unobtrusive.   Though in really hot weather it would be annoying to have the A/C cut in and out. 

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    I had a '16 Malibu in Ohio last week, the start/stop was pretty smooth and unobtrusive.   Though in really hot weather it would be annoying to have the A/C cut in and out. 

     

    On the Malibu, if you set the AC to Max, the Start/Stop will be minimized

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    I had a '16 Malibu in Ohio last week, the start/stop was pretty smooth and unobtrusive.   Though in really hot weather it would be annoying to have the A/C cut in and out.

     

    On the Malibu, if you set the AC to Max, the Start/Stop will be minimized

    Good to know. I was never able to shut off the ventilation completely. I could set it to floor or dash vents or both, but never neither. But that's another issue...

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    The AC in the stop starts I have been in never were an issue. The only real noticeable thing was the tach dropping and a little jump on start up that is no longer an issue. 

    The first one I drove on a truck I was expecting it to feel like the car stalled and it never did. That was long ago too and the newer systems are much better and only getting better. 

    Like I said I am not a fan but I can not bad mouth it because it does work. 

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