Gretio

The popular vehicle diagnostic tool is now on iOS!

Use Gretio with an OBDLINK MX+ to perform advanced diagnostic functions on your vehicle.

Analyze thousands of different data points at high speeds.
Look up diagnostic trouble codes for all modules including the Engine Control Module, Chassis Control Module, Body Control Module, Radio, and more.
Perform advanced service functions such as diesel particulate filter service regenerations, selective catalytic reduction tests, power relay tests, and even program some features.

Gretio is an advanced tool made for the DIY market. All procedures must be used in accordance with the vehicle's service manual or other OEM approved literature.

Gretio is made exclusively for General Motors vehicles. Additional models will be supported in the future.