Diagnostics VIDEO: TCM Service Andrew Markel debunks the myth that the TCM learns how the customer drives the vehicle. Advertisement ByUnderhood Service Staff Writers on Dec 21, 2016 AdvertisementClick Here to Read MoreAdvertisement Andrew Markel debunks the myth that the TCM learns how the customer drives the vehicle. Advertisement In this article:video 1 Comment Tools: Be Your Own Lift Cable Guy Tools: Do You Know The Three Types Of TPMS Relearns? Diagnostics: New Surprises Around Every Corner Diagnostics: Diagnostic Solutions: Starter And Battery Diagnostics Advertisement WEBINARS Watch a webinar for free on-demand! PODCASTS Listen to the latest Underhood Service podcast. SUBSCRIBE Stay up to date with the latest Underhood Service news.