Re: Auto stop/start feature hasnít come on in a while
In my 2016 Limited, the ability to trigger the Auto Stop/Start feature seems to be sensitive to the amount of charge in the main battery. And the condition of the auxiliary battery seems to regulate how long it can remain stopped.
I also had the same unpredictable stop/start conditions some of you had. So I started checking the battery levels with my schumacher battery charger that has the digital readout on amount of charge remaining. Both of my batteries are in good condition. When the stop/start didn't trigger, the battery was typically below 70% of full charge (on my charger, YMMV). But after about one day from topping off the battery with the charger, the stop/start feature returned and always worked. So my guess is that the feature wants the main battery to be in what it thinks is excellent condition otherwise it won't risk stop/start and stranding the customer in a not enough battery power to start situation. And its criteria for determining condition is how much full charge percentage the battery has.
I verified my hypothesis by not topping off the battery and resuming my "lots of short city trips" commuting and errand running. The start/stop feature stopped working as expected since the car no longer had enough time to charge the battery up to whatever it considered to be full charge percentage.
I use the term "full charge percentage" inaccurately because it cannot be helped. Both the car and my battery charger have their own criteria for what consititutes 100% full charge. So all I can see on my end is that digital readout finally creeps up to be 100% full. I don't overcharge the AGM so I remove the charger as soon as it gets to 100%. But the charger seems to be reasonable too with its AGM charger setting since it tweaks the output voltage around 13.3 volts when the battery is full.
/\_/\_/\_../\.. . . . . . .
As for the drivers who hate stop/start, you can easily avoid using it in situations you don't think are long enough to stop the engine. Simply press the brake pedal as you do to slow down. BUT just before you come to a complete stop, let off on the brake pedal such that your car very slowly creeps up to be stopped. That's the trick to avoid triggering the stop/start feature. As long as I don't have the brake pedal pushed all the way down as I come to a stop, it doesn't trigger on my 2016 Limited. After a little practice, you will be able to regulate the occurrence of stop/start in your car without even thinking about it.