A phone stuck in 'Car Kit mode' can be caused by a software problem, a damaged charging/data port or exposure to moisture. Attempt the following troubleshooting steps to resolve the issue:
Perform reset of device:
If vehicle or wall charger is availalble:
Attempt to clean the contacts:
If device has been damaged by water, attempt to dry the phone:
If the phone is still not resuming normal function, take it to a Verizon Wireless retail store (non kiosk) for additional troubleshooting or replacement.