I have a 2010 RX350. Using my iPhone 5 with the bluetooth in the car is a little hit and miss/sluggish. When hitting the button for Siri, the car seems to struggle with the process.

I am curious if the firmware for the car is current... and if not, does a more current firmware update the bluetooth for better functionality. I haven't had it updated for almost 2 years. I do have navigation.

Thanks

 

I have a 2010 RX450h with Nav, it too is slow and sluggish with Siri. I did have the dealership update everything before I took possession of the car. I think it is just a iPhone/bluetooth handshaking thing.

 

Thanks. When did you last update your RX450 firmware and do you know if there is a more recent version since you updated?

Aside from the Siri issues, I am also just looking also to learn of the benefits, if any, of a firmware update for my 2010 RX350 and to learn the version number.