Siri requires iPhone unlock for shared reminders after iOS 27 update

This first bullet point seems to have worked:

Siri normally can add reminders while your iPhone is locked. If it asks you to unlock, one of these is usually responsible:

• Siri isn’t allowed on the Lock Screen: Go to Settings → Face ID & Passcode (or Touch ID & Passcode) and turn on Siri under Allow Access When Locked.
• “Allow Siri When Locked” is off: Go to Settings → Apple Intelligence & Siri or Siri & Search, then enable Allow Siri When Locked.
• The request needs protected information:Siri may require unlocking if you ask it to edit or view an existing reminder, use a specific private list, or access information it considers sensitive. A simple command such as “Remind me tomorrow at 9 AM to call Mom” should generally work locked.
• A work/school management profile or Focus setting is restricting Siri.
• A temporary iOS glitch: Restarting the iPhone and installing the latest iOS update can help. If the settings are already enabled, toggling them off and back on may restore the behavior.

If it still happens, try Settings → General → Transfer or Reset iPhone → Reset → Reset All Settings. This keeps your photos and apps but resets system preferences, Wi‑Fi networks, and similar settings.

Change to Siri classic under content and privacy restricitoons. Fixed it for me!

Change to Siri classic under content and privacy restricitoons. Fixed it for me!

Poly-merase - Thank you very much.. it worked for me too ..

Changed to Siri Classic under content and privacy restrictions.

Using Siri AI considers the Reminders app as being personal content that cannot be accessed without authentication.

If you have used a HomePod, the authentication is performed by Voice Recognition which is not an option on the iPhone. You have not been able to add items to your Shopping list for several prior OS versions unless it has recognized your voice. No one else can add items to your Shopping list or access anything in the Reminders app, unless that person has been added as a user where they can only add items to their own Shopping list after recognizing their voice.

With the newly released Home View device that uses Siri AI and also allows multiple users, each person can access their own Shopping List, but not others. The authentication uses a combination of Facial and Voice recognition and even a device that has been paired to the Home View and recently unlocked. No guidance has been given yet on what is meant by a recently unlocked device or what time period that would refer to in conjunction with the Facial/Voice Recognition.

Along with the Reminders app for Shopping Lists, personal information in all these devices using Siri AI includes Messages, Contacts, Notes, and the Calendar app, preventing access from others without some form of authentication. The iPhone is a single user device, compared to the others, and does not have Voice Recognition so the authentication is done by unlocking the device. It is plausible that they could have a time limit after unlocking for access to that personal information, although that means others would be able to access it too with Siri.

If my wife and I both have our iPhones sitting on a counter, whose shopping list should it be added to, there is no voice recognition capability? Should I be able to add an inappropriate reminder or item in a Shopping list to someone else's phone simply by using Siri on their locked device?

As always you can send Feedback directly to Apple here:

Feedback - iPhone - Apple

justincone wrote:

“Using Siri AI considers the Reminders app as being personal content that cannot be accessed without authentication. “

This suggests the behavior is consistent. It is not. It is seemingly random.

If it was consistent, I would understand. Your explanation would actually make sense.

For me I have not seen it to be random. Every time accessing the Reminders app, such as adding an item to the Shopping List, requires me to unlock my phone. The only time I am able to use Siri AI to add an item to the Shopping List on the locked phone is when I am using my paired AirPods or CarPlay since both of those are intended for Hands-free usage.

There is no Support Document provided by Apple that claims it should be working on a Locked phone, so whether it is a bug would be impossible to say. I also brought up an interesting question of whether I should be able to add an inappropriate Reminder or Shopping List item to your phone if I see it sitting out somewhere while it is locked? I can answer that one, and it would be a firm no for me personally. Playing music without authentication is one thing or asking Siri about the Weather on a locked phone, but seeing content on my phone that someone else has dictated, I would consider off limits.

I also provided the link for anyone who does not like this behavior to send their Feedback to Apple. To be honest, that is exactly what I would do if I was seeing content on my phone that someone else was able to dictate to Siri in the reminders app.

Have you contacted Apple Support directly? Instead of claiming something is broken that Apple needs to fix, why don't you contact them. If they are able to get your device to add items on a locked phone you can provide that information here, or they may tell you that it is no longer possible. If it is a bug, they may even tell you that and are working on a resolution for a fix in a future update. That would apply both to whether it should or should not be allowed in a consistent manner, since you are experiencing inconsistency.

Contact Apple Support - Apple Support

I am also encountering problems adding items to reminders that are not shared. I keep a private grocery list in the reminders app, and even requesting an addition to that list requires me to unlock my phone. I am using an iPhone 16 Pro Max on iOS 27. iPhone 16 Pro Max on iOS 27

it is so frustrating

I appreciate you trying to help, but I've tried all the above. None of them work.

The weirdest part is that it appears random. One day, I asked, "Add cucumbers to my shopping list," and the request sailed through with no issues. Three days later, same request, and I was told I had to unlock my phone.

Before you ask: Yes, the phone was in the exact the same state in both cases. This isn't a settings issue. It's an iOS 27 + Siri Intelligence issue.

The best I can figure is that Siri Intelligence is, like all LLMs, operating with a bit of randomness in the mix, and that randomness is spilling over into these simple "add X to my list" requests. But who knows? It's a black box.

I am also experiencing the exact same issue with Apple Intelligence Siri on iOS 27.0.1.

Despite enabling all the relevant settings, Siri insists that I unlock my iPhone before adding an item to my shopping list. Interestingly, my older iPhone running the same iOS version with traditional Siri works perfectly while locked.

I see this issue was already reported in September 2026, and we are now in October.

Has Apple officially acknowledged this issue, and is a fix in the pipeline? If so, when can we expect it?

It is disappointing that the newer, supposedly smarter Siri cannot perform a basic task that the older Siri handles effortlessly.

“Using Siri AI considers the Reminders app as being personal content that cannot be accessed without authentication. “

This suggests the behavior is consistent. It is not. It is seemingly random.

If it was consistent, I would understand. Your explanation would actually make sense.

As a side note: Every time a well-meaning person tries to defend this objectively broken behavior, it drives me slightly insane and opens the door for Apple to ignore what is a crappy experience.

It’s broken. Apple needs to fix it.

If you’re not experiencing this error, I’m happy for you but please stop sharing “solutions.” It’s not helping.

I’ve also noticed that it does it at random! Or it’ll time out after asking me to unlock my iPhone, and it’ll add it anyways. Example: in the shower I say “Siri add body wash to the grocery list” and she’ll say “you’ll need to unlock your iPhone for that.” Well I’m in the shower and I’m not getting out so it stays on the screen. Between 5-10 minutes later she’ll say “I’ve added body wash to your grocery list” without me ever unlocking it!

I’m really hoping they fix this soon

I'm on an iPhone 18 Pro and experiencing the same thing. It's pretty inconsistent for me, and I can't figure out what triggers it. It's pretty infuriating.

Oh, you're raising a good point: This behavior is happening for me on both shared and non-shared lists.