SIRI via handsfree in car bluetooth


macrumors regular
Original poster
Oct 12, 2011
Hi all
Is it possible to activate Siri from in car bluetooth without holding the home button?
I have a talk and end and listen mode that connects to car.
Wondering if any button can turn on siri.
I have a lexus ct200 if that helps, no nav,

Side it possible to transfer my address book to the car? anyone know?



macrumors 6502
Sep 16, 2009
If you jailbreak your phone there is a tweak I believe called HandsFree Siri and it will let you activate Siri by simply saying "Siri" and then whatever you want it to do. No need to touch your phone.


macrumors 68040
Mar 3, 2008
Transferring your phone book should be possible on the iPhone end, it really depends on what the system in the Lexus supports. Many car systems support phone book transfer but if you change entries on your iPhone, do you want to do the entire transfer again? It's no big deal with a few hundred entries but if you have a few thousand entries, phone book transfer can take a while over bluetooth which isn't exactly known for speed.

As for activating Siri, I doubt it. The handsfree profile implemented in today's cars was agreed upon years before there was such a thing as an iPhone or Siri. The profiles contain provisions for phone book transfer, audio transfer, dial and so forth. Activating phone features is something that is probably not going to be there unless you have one of the newer systems that mirrors the phone's screen up on display in the car and you can interact with it from there. I seem to remember BMW bragging about such a feature a while back.


macrumors 6502a
Jul 31, 2010
I have a pioneer dehp710bt in my car and I can use Siri if I hold the home button down but not using the voice command button on the head unit.


macrumors 68030
Apr 15, 2010
One of my vehicles (Mazda CX9) has a "headset voice command" button on the steering wheel, but it always invokes the Mazda voice command module and not Siri. But then, it controls a lot of other features so not sure I want it to either.

I've honestly not been using Siri all that much. Nice feature but just not a big deal to me.


macrumors 6502a
Apr 15, 2011
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I use a Motorola bluetooth adapter(guessing it's called something else for real) in my daily driver which a 2002 maxima SE. Which btw has no support whatsoever for Bluetooth. Anyhow, I set the radio station to whichever one the Bluetooth thing says and go from there. To get to the point I just have to hit the call button quickly and it brings up Siri. My wife's G37 has Bluetooth bit we don't drive it very often so I'm not to sure if you can activate Siri with it. I've only tried music.