iPhone Users Report CarPlay Connectivity Issues With iOS 18.4 Update

Multiple iPhone users are reporting problems with CarPlay functionality after updating to iOS 18.4, based on complaints on Reddit and elsewhere.

ios 18 4 carplay
The most widespread issue appears to affect vehicles equipped with CarPlay instrument cluster integration. Some users said that after installing iOS 18.4, CarPlay no longer displays the currently playing song information on their car's instrument panel.

The instrument cluster bugs have been reported across numerous vehicle models including the 2025 Honda Civic Hybrid, 2025 Mazda CX-30, various 2024 Honda models, multiple Volkswagen vehicles, the 2023 Audi S3, and the 2023 Nissan Frontier.

Meanwhile, several users have complained that CarPlay completely fails to launch after the update, requiring multiple reconnection attempts - sometimes up to five tries - before the system will work. Others report broken Siri audio functionality that persists despite restarting both their iPhones and vehicles.

Users say they have attempted the standard troubleshooting steps like device reboots and system resets, but in many cases these workarounds have not resolved the issues. The problems appear to be directly linked to the iOS 18.4 update, as affected users report that everything worked properly before installing the latest version.

Apple has not yet acknowledged any CarPlay issues with iOS 18.4, so it's unclear whether a fix is in the works. Apple released iOS 18.4 earlier this week, and the only notable intended change to CarPlay is that the interface now shows a third row of icons (up from two rows previously), but only on vehicles with a larger display center. Have you had problems with CarPlay after updating? Let us know in the comments.

(Via autoevolution.com.)

Popular Stories

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iphone 17 dummies sonny dickson

iPhone 17 Air Almost as Thin as Its Buttons, New Images Show

Thursday April 24, 2025 2:14 am PDT by
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison. The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
iOS 18

iOS 18.5 Includes Only a Few Changes So Far

Monday April 21, 2025 11:00 am PDT by
Apple seeded the third beta of iOS 18.5 to developers today, and so far the software update includes only a few minor changes. The changes are in the Mail and Settings apps. In the Mail app, you can now easily turn off contact photos directly within the app, by tapping on the circle with three dots in the top-right corner. In the Settings app, AppleCare+ coverage information is more...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...

Top Rated Comments

wanha Avatar
3 weeks ago
any individual software quality incident by itself is proof of nothing, but taken together they paint a concerning picture of steadily declining software quality at Apple

what we can debate over is what the cause of all this is:

- Is it an increased focus on revenue and profit? ("the Tim Apple" crowd)
- Is it the result Apple's rapid head count growth and the ensuing complexity of communication and coordination?
- Is it the growing complexity of software over time?
- Is it the lack of a singular focus at the top? ("everything would be different if Steve were alive")

My hypothesis is that it's a combination of all four.

It's also why I am pessimistic about Apple's ability to fix this to any significant degree.
Score: 21 Votes (Like | Disagree)
JokoWidodo Avatar
3 weeks ago
why do iOS updates always break things ?!!
Score: 12 Votes (Like | Disagree)
aliea13 Avatar
3 weeks ago
CarPlay completely stopped launching on my Toyota RAV4 with iPhone 15 Pro after updating to 18.4

Update: solved the problem by removing the car from Carplay settings and reconnecting the phone
Score: 9 Votes (Like | Disagree)
CarAnalogy Avatar
3 weeks ago

any individual software quality incident by itself is proof of nothing, but taken together they paint a concerning picture of steadily declining software quality at Apple

what we can debate over is what the cause of all this is:

- Is it an increased focus on revenue and profit? ("the Tim Apple" crowd)
- Is it the result Apple's rapid head count growth and the ensuing complexity of communication and coordination?
- Is it the growing complexity of software over time?
- Is it the lack of a singular focus at the top? ("everything would be different if Steve were alive")

My hypothesis is that it's a combination of all four.

It's also why I am pessimistic about Apple's ability to fix this to any significant degree.
I don't quite understand why Craig Federighi's responsibility is always overlooked.

He's the head of all software. Basically all complaints about Apple are software related.

Everyone always calls for Tim's head, but why doesn't anyone ever ask if it's time for Craig to spend more time with his money?

I guess as CEO everything is ultimately his fault / credit. So maybe it's just that he's not managing his people well. But the upper echelon seems kind of frozen in time. Unless they're squashing some (real or potential) coup attempt as seemed to be the case with Forstall, it seems like anyone that was a lieutenant to Steve is untouchable.
Score: 7 Votes (Like | Disagree)
555gallardo Avatar
3 weeks ago
All you need to do is to switch over to a Next-Generation CarPlay vehicle. It's that simple, that easy and Apple thinks you're gonna love it. Oh wait.
Score: 7 Votes (Like | Disagree)
@Brett Avatar
3 weeks ago
I’ve not had an issue with it on iPhone 16 Pro Max and 15 Pro Max and my wife’s 15. Not to discredit other users. Hopefully it gets resolved for them quickly.
Score: 6 Votes (Like | Disagree)