US Patent 10099608 Haptic vehicle alert based on wearable device

A vehicle includes a controller that communicates with a wearable device having a haptic mechanism. In response to an alert event detected by the vehicle, the controller outputs a signal to activate the haptic mechanism. The wearable device may detect a physiological or biometric characteristic such as pulse rate. The controller may output a signal to activate the haptic mechanism further in response to the pulse rate being less than a threshold. Also, the controller may output a signal to activate the haptic mechanism while the vehicle is operating autonomously.