This worked correctly on every other car I've used CarPlay on with my phone (Audi, Porsche, Ford, BMW, Subaru, GM, etc). On my 2025 GX, connected via Wireless CarPlay, it does not reduce the music volume much at all (ever so slightly). I have the Siri volume turned way up. Any suggestions?
CarPlay does not reduce music volume when Siri active
- Thread starter RickBullotta
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Welcome to the GX550
- Thread starter
- #3
Apparently symptoms appear on many vehicles with the same Toyota/Lexus head unit
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- #4
It's fairly clear now that it's on the vehicle side, not a CarPlay issue. CarPlay is sending a request to the vehicle's head unit to reduce volume, and it does subtly, but not enough. I'll be filing a support ticket with Lexus.
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- #6
Same here - works fine in the Macan and every other car we've owned (and rental cars).
Post what Lexus tells you
Same issue. It's a problem.
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- #9
Please ask your dealer's service department to open a case with Toyota/Lexus.
Don't mean to hijack the thread, but since we are discussing CarPlay here... Do you guys actually use wireless CarPlay? Is it stable?
My previous experience with wireless CarPlay (on a Ford Sync 4 vehicle) was very dismal and I had to switch to wired.
My GX is arriving so I'm eager to find out soon
My previous experience with wireless CarPlay (on a Ford Sync 4 vehicle) was very dismal and I had to switch to wired.
My GX is arriving so I'm eager to find out soon
- Thread starter
- #13
Again, I'd ask that everyone with this issue (which is pretty much everyone with a GX and an iPhone) ask your dealer's service department to contact Lexus and start a case with engineering. It can get fixed in a software update fairly easily.
Read that this was designed this way to cut down on the annoying muting/pausing of music every time you got a message. You can adjust the volume of Siri reading a message by letting it read your message and pressing the volume up button on the steering wheel.
I’ve enjoyed wireless car play for a few years now on LS’s and find it incredibly stable. Runs over WiFi and not Bluetooth so that enhances its speed and reliability.
I’ve enjoyed wireless car play for a few years now on LS’s and find it incredibly stable. Runs over WiFi and not Bluetooth so that enhances its speed and reliability.
- Thread starter
- #15
That's not a very smart design decision. Literally every other vehicle I've driven with CarPlay properly reduces music or audio volume when Siri is active. With Siri at maximum volume, it's still not adequate if you're listening to music even reasonably loud, which I do, and which was kind of the point of an 1800 watt sound system.
TL;DR: it's a bug, not a feature. Toyota/Lexus need to address it, as it is a SAFETY ISSUE. It requires lots of volume gymnastics and other manipulation of the multimedia screen to, for example, get Siri to read a message when the audio is active.
I don’t catch “safety issues” vibe but to each his own. It likely annoys you and many others, but I hope you love every other aspect of your GX.
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