Anyone know how to shut this off, some quick googling makes me think it might be a bug...
If you do a Site search I'm pretty sure you'll find a thread on this. Seems to me it was a mobile setting somewhere (as in, for when you're in your car)
Phones: OG Droid >>Droid Bionic>>Moto X
You need to look a couple different things in the phone's settings.
First, go to Settings -> Accessibility. Make sure that TalkBack is turned off. If for some reason you want it on for something, tap the Settings bar at the bottom. From there, you can change several of the TalkBack features, including when for it to talk and not to talk according to the volume.
Second, go to Settings -> Language and input ->Text-to-speech output. Make sure that "Driving mode" is turned off.
Current lineup: Galaxy Note 2, Galaxy Note 8.0, MotoActv
Previous smartphones: Galaxy S3, One X, Droid RAZR MAXX, Galaxy Nexus, Rezound, Galaxy Note, iPhone 4S, Droid Bionic, Stratosphere, Droid Charge, Vitality, Droid Incredible 2, Thunderbolt, Palm Pixi Plus, Droid 3, Fascinate, Droid Incredible, Droid Pro, Droid 2 Global, Droid X, Droid, Treo Pro, Touch Pro 2, Touch Pro, Q9m, XV6800, XV6900
Previous tablets: Transformer TF300, Evo View, Transformer Prime, Transformer TF101, Thrive, gTablet