Plug this Automatic RL-20200-0A adapter into your vehicle for access to key information on your vehicle's onboard computer. The mobile app pairs with the adapter via Bluetooth, to diagnose engine problems, display trip logs and send help in a crash.
This was easy to set up and get going companion app was free. I did go and also download an app that the system recommended for an additional 9.99 that provides even more details on the system such as battery life, emissions, speed and has very informative dashboard that helps keep my truck running great.