CarPlay doesn't work after iOS 10.3.1 update

If CarPlay doesn't work like you expect, here’s what you can check. After each step, try using CarPlay again.

1. Make sure that Siri is turned on.
2. Restart your iPhone and your car. Depending on your car, you might see the CarPlay Home screen when you turn it on. If you don't, look for the CarPlay logo on your car’s display.
3. If possible, connect your iPhone to a different USB port in your car.
4. Try a different Lightning to USB cable. Make sure that the cable is certified.
5. Update to the latest version of iOS.
6. Check your car’s manual for help. You might need to install firmware updates for your stereo.

I have 2017 VW Golf. SE phone stopped running CarPlay after iOS 10.3.1 update. Vw firmware just got updated and reset by dealer. Wife's phone without update runs CarPlay just fine. I've reset all my settings. Still no joy. Strongly suspect this is iOS bug.

Skoda Octavia MY16. Had the same problem after updating iPhone 6+ to iOS 10.3.1 = no device found. Carplay did not start, not even once. Carplay was running just fine before this update.

Tried this (iPhone):

settings

music

disabled "Show Apple Music" entirely

After this change, carplay started normally again. Worked for me.

Similar bugs experienced. I have an iPhone 7 Plus in a 2016 Hyundai Elantra. Carplay functions still but I've noticed a few differences since the update.

1. Apple Music plays for a few seconds as soon as I start the car and I have to manually press play once again for it to come back, (which never used to be an issue). Also the Play/Pause icon will remain on the pause option, (as if the music were still playing), when this happened and when I clicked it it played again and remained the pause icon as if nothing had happened.
2. Sidebar recent apps are now displayed all the time (last 3 apps in Car Play used), which I have only ever seen one at a time and VERY few and far between before the update and I never knew what caused them to spontaneously appear or disappear. (My guess was that it appeared only when notifications popped up and took you to a different app when selected, but don't know for sure).
3. Additionally, as I plug in my iPhone to my Apple-delivered, brand new, certified lightning cable, I have noticed Car Play will automatically pop up and display a blank dark screen yet still play music. This was an issue pre-update and may or may not have changed since the update, (can't recall if it has happened since).
4. Finally, Apple Music will randomly pause songs while I'm driving. I thought this might've been a result of some loose wiring as I went over bumps but I quickly validated this wasn't the case multiple times as it happened while parked and didn't happen over large speed bumps or other rougher driving that would more than likely cause the glitch to occur if the wiring was an issue.

Anyway, this is my experience, hope the next update comes out soon and addresses these with a fine-tooth comb in the software.

Same problem with an iPhone 6S in a 2017 VW Caddy. Works like a charm with the same cable and phone with iOS 10.2.1.

Also works like a charm with the same car, same cable but different iPhone (5C) with iOS 10.3.1

YYes this is typical Apple, no brains in the whole organisation. some ******* changes a setting and has done no R&D. I have a $100k car and car play doesnt work on a BRAND NEW iPhone 7. Yet my sons iPhone 5 works perfectly without a update done.

NEVER EVER UPDATE A IPHONE because some uni student who knows nothing has probably designed the update.

I recently had this same problem connecting to an aftermarket stereo I just installed with my iPhone 7 Plus. I tested Carplay on the new radio after I installed it and was working great. I upgraded to 10.3.1. I thought maybe the mic wasn't connected to the radio or had a cut in the wire. It wasn't until I searched online to see people were having a problem since the upgrade. I tried all the tricks mentioned..turning car off... stereo off...phone off. No luck. I could play music with Carplay just could not do Siri. Tried playing with the Siri settings no luck. By happenstance I changed the voice setting for Siri from Australian women to American Male. Today when I got in my car I tried Hey Siri and it just started working to my surprise. I also have it bluetooth to the stereo as well, where as before I did not. My 2 cents. Good luck.

OK ALL PROBLEM SOLVED.

After doing everything possible including taking my new vehicle back to the dealers i made a fuss at the apple store. it was within their replacement period and decided to replace the phone. the problems are ALL GONE with latest update and all my backups on the phone. my read on the situation is that the firmware update corrupts some phones randomly but is definitely a phone problem.

cheers

Today I contacted Apple customer support and they confirmed that VW firmware is not updated yet to be compatible with iOS 10.3.1. They hope that VW will update their automobile firmware soon so that Carplay will function again for those of use who were foolish enough to update our phones.

Yeh i think Apple are telling little lies with that one. My brand new VW had the problems mentioned in my previous post but my 1 year old Mercedes does not. as mentioned before once i complained enough for apple to replace my iphone for another one my problems all disappeared with the latest update. so there is by no possible way it could have been the vehicle. !!!!!!!!!

Its just Apple people who don't know what they are doing trying to push the blame to someone else. one very simple test get someone else to try their iphone, if it works then its very simple iphone not vehicle

Same problem, iPhone 7 Plus, iOS 10.3.1, car Volkswagen Golf Variant 2015 model. After connecting via media-in cable, the system in the car just says "USB: device is not supported". Hopefully they fix it soon, I recently switched over from Android just because I expected much bug-less experience...

I'm on the public beta of 10.3.2 which I believe is still the public beta test of the forthcoming update, though they may have pushed this to everyone now. Anyway, it's still broken here too.

This is very frustrating.

I've seen this same response cut an paste a number of time from Apple. It does not solve anything. The issues arise when's Zappos pushes a new update and the CarPlay enabled sound system in vehicles lose all ability to recognize that an iPhone is connected.

It's VERY annoying to see this suggested help over and over.

I have this problem as well, with a 2017 Chevrolet Colorado. After the 10.3.1 update, Apple CarPlay is only randomly recognizing my iPhone. Sometimes CarPlay says that no device is connected, but will randomly play a song from my iTunes Library. Every once in a while, CarPlay will recognize my iPhone and work normally. I've been using an Apple Lightning cable and the USB connection that worked like a charm since December.

Apple used to beta-test before general release. I'm beyond frustrated, as CarPlay is one of their best innovations. The customer who can afford a new car with CarPlay is not the kind of customer that Steve Jobs would have treated this way (my wife knew Steve Jobs, so I know what I'm talking about). I have even subscribed to a paid streaming music service for the first time thanks to CarPlay -- and now I can't use it!

After several hours on the phone with apple support this is what we did to make it work properly so I would suggest trying it....go to settings , general, restrictions and turn off! Then on your car setting delete your Bluetooth phone and then add your phone as the "default" phone. This worked for me perfectly . Other wise call Apple support and they will work you through several scenario's as I'm sure every car is different mine was a 2018 Audi but this is what worked for me.