HP Tuners Introduces Direct OBDII Upgrade Support for GM T93 TCM (Global A)
Published on: March 17, 2026Categories: New Vehicle Support, Press Releases
BUFFALO GROVE, IL, March 17th, 2026—HP Tuners is excited to announce a major workflow improvement for vehicles equipped with the GM T93 TCM (Global A). With this latest update, users can now perform the required controller upgrade directly through the OBDII port using VCM Suite—eliminating the need to remove and ship the module for an upgrade service.
Previously, vehicles equipped with the T93 TCM required a mail-in upgrade service or hardware modification before tuning could begin. With this new release, the entire process can now be completed directly through VCM Suite, significantly simplifying the path to tuning and diagnostics.
This update allows tuners and shops to upgrade the controller in-vehicle, reducing downtime and streamlining the tuning workflow.
Key Details
- MPVI3 or MPVI4 device
- Universal Credits for licensing TCM
- VCM Suite Beta 5.3.484+— Free download
- RTD3 and RTD4 supported for TDN workflows
Once upgraded and licensed, users gain full transmission diagnostics, data logging, and calibration control through VCM Editor and VCM Scanner.
For more information, visit www.hptuners.com.
ABOUT HP TUNERS—HP Tuners is the leading diagnostic and calibration solution for vehicle aftermarket performance with over 20 years of expertise. From diagnostics, data logging, scanning, custom calibration, and more, HP Tuners offers the most comprehensive solution for OBDII-equipped import, domestic, and powersports vehicles. Connect with HP Tuners at www.hptuners.com.