Methods, computer-readable media, software, and apparatuses provide a system for controlling access to text messaging capabilities of a mobile computing device of a user while the user is driving. The mobile computing device may be configured to restrict a user from sending or receiving text messages while the user is driving depending on a current driving situation. Whether a user can send or receive text messages may further depend on a priority of the text message or a priority level of a sender or intended recipient of the text message. The system may include devices for collecting information regarding the vehicle and its surroundings and for determining the current driving situation based on the collected information. Further, the system may include devices for maintaining records of the restrictions placed on text messaging and of rewards earned for agreeing to be subject to such restrictions.