Here's what you need to know. Your vehicle's engine control module (ECM) includes readiness monitors, a self-diagnostic software program that verifies the OBD II system is operating as designed.

A camshaft position sensor is an electronic device that does what it suggests — monitor the camshaft position and speed — and feeds that data to the vehicle's engine control module (ECM).

Attorney and traffic safety expert Amy Witherite says vehicles can provide valuable information should you be involved in an accident if you know where to look and how to access it.

The V3 provides GPS vehicle tracking capabilities with real-time delivery of vehicle condition and performance data, in one simple-to-install telematics device. High-definition GPS tracking ...