On iOS26, I do Settings>General>CarPlay>my car> and turn On "Allow CarPlay While Locked". That works about half the time. Half the time I have to manually unlock my phone to get CarPlay activated on my car. What's going on?
iPhone SE, iOS 26
Dannymac22 wrote: "iPhone SE (2nd generation)
Does that make a difference?"
The difference is its age and, by extension, the health of its possibly >5 year old battery – which, if poor, can result in unexpected behavior. So...
Does your iPhone SE 2nd generation still have its original battery?
And what's the Maximum Capacity % here?...
Settings > Battery > Battery Health & Charging
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Danny ~ Which model of SE is it?...
Settings > General > About > Model Name
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Dannymac22 wrote: "...Why is this more sensitive to battery capacity than anything else?"
That CarPlay feature may not be more sensitive and that 80% max capacity may not be the cause of that unexpected behavior. Only an Apple engineer may be able to determine whether that weak battery is or isn't the cause.
However, Apple suggests having the battery replaced at around 80% – so consider having that weak, aging battery replaced to avoid possible future battery-caused issues occurring at an inopportune time:
About genuine iPhone batteries
(Articles found by searching Apple's Knowledge Base.)
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That doesn't make a lot of sense. My phone works great for everything else, and by battery capacity is 80%. I have zero "unexpected behavior" in anything else. Why is this more sensitive to battery capacity than anything else?
iPhone SE (2nd generation)
Does that make a difference?
"Allow CarPlay While Locked" feature not always working
