GM T93 TCM Service (Global B)

HP Tuners offers an upgrade service for the GM Global B T93 TCM found in various GM vehicles equipped with the GM 10L80 10-speed transmission. This one-time, send-in service is required to enable diagnostics and tuning capabilities using HP Tuners' VCM Suite BETA software. The service upgrades the original TCM to accept tunes without pre-programming it with a VIN. Users must physically remove the T93 TCM from their vehicle and ship it to HP Tuners for servicing. Once upgraded, users have full access to calibrate, log, and scan via the OBDII port. The upgrade does not affect other operations of the TCM, and factory tools will still work for service.