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Auto start-stop functionality

natetom

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I don't have my manual in front of me so I haven't checked this out yet, but it seems like the Auto start stop function triggers with a firm press of the break pedal once you are stopped. I've found that I can prevent it from engaging by using just enough pedal pressure to keep me from moving and if I want to engage it, I just press a bit harder. The only time this hasn't "worked" is when I'm on an upward incline - when I try it then, the indicator light on the dash board lights up amber and nothing happens. Like I said, I need to check the manual out, but this seems like an interesting feature. I know I can turn it off completely by pressing the center console button to disable it for that trip, but having control via the brake pedal seems handy. I've found this useful when waiting at a left turn on green situation where I'll need to go quickly and don't want any hesitation. Has anyone else seen this behavior?
 
I just read the owner's manual on this, and there is no mention of being able to control when the system activates based on pedal pressure, except there is a part about it not operating of brake vacuum pressure is too low, but anytime the system requirements aren't met, the dash light is supposed to turn yellow. One of the other activation conditions is that the incline can't be too steep, so that explains part of my experiences. I hope my feature isn't a bug :)
 
When I was considering an Outback, I read on one of their forums that Outback owners try to be gentle on the brake pedal when they don't want auto-start to shut down the engine.
 
When I was considering an Outback, I read on one of their forums that Outback owners try to be gentle on the brake pedal when they don't want auto-start to shut down the engine.
Yep that’s what I’m describing and so far it seems to work.
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I’ve notice similar behavior. Less than firm pressure will usually prevent it from shutting off. I think this makes perfect sense and is useful when stopping for left turns and stop and go traffic in the city. After a while you learn how much pressure is needed on brake for it to shut down.
 
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Yes, its the same on my Ford F-150 and was the same with my Kia Stinger.
 
I’ve notice similar behavior. Less than firm pressure will usually prevent it from shutting off. I think this makes perfect sense and is useful when stopping for left turns and stop and go traffic in the city. After a while you learn how much pressure is needed on brake for it to shut down.
I wonder if driving in "smart mode" has anything to do with my own experiences with this feature. Seems to do what it wants, when it wants. I cannot discern a pattern and usually drive in "smart mode." Still wondering exactly what THAT means, after countless contradictory YT videos prior to purchase.
 
Brake pedal travel is dependent for ISG to activate. I also observed and mentioned in another thread.

Telluride shuts down

Other scenarios I’ve observed that will prevent ISG to turn off the engine at stops:
  • Setting climate control off auto (ie, manual fan speed or direction) so that it will not satisfy the ISG interior temperature criteria
  • Battery drain from extended periods of not driving. Will not satisfy battery reserve power for ISG. Could possibly intentionally drain battery by leaving accessory mode on for too long while engine is off.
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