2022.5–2026 GM 3.0L Duramax Global B 10-Speed Transmission Tuning

Overview

2022.5–2025 GM 3.0L Duramax Global B 10-Speed Transmission Tuning is a custom remote transmission calibration service for supported Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with the 3.0L Duramax and Global B architecture.

Rather than using a generic transmission calibration, the tune is developed around your truck's configuration, engine calibration, modifications, tire size, intended use, and desired transmission behavior. The remote-tuning process allows transmission operation to be evaluated from vehicle data and refined for improved shift behavior, torque management, drivability, and overall coordination between the engine and 10-speed transmission.

Compatible Platforms

• HP Tuners

Vehicle Compatibility

• Model Years: 2022.5–2025

• Make: Chevrolet, GMC

• Models: Silverado 1500, Sierra 1500

• Engine: 3.0L Duramax Diesel

• Engine Codes: LM2 / LZ0 where applicable to the Global B platform

• Transmission: 10-Speed Automatic

• Transmission Controller: T93

• Vehicle Architecture: GM Global B

• Module Tuned: TCM

Exact compatibility must be confirmed by the vehicle's T93 service number/controller before ordering.

How Remote Tuning Works

• Provide the requested vehicle information, modifications, tire size, engine tune information, intended use, and desired transmission behavior.

• Verify that the truck is equipped with a supported Global B T93 TCM.

• Complete the required HP Tuners Global B T93 TCM upgrade before attempting to tune the transmission.

• Read and flash the supported TCM using HP Tuners VCM Suite and a compatible interface.

• Provide requested data logs when needed so transmission operation can be evaluated under actual driving conditions.

• Receive calibration revisions through the remote-tuning process until the initial transmission tune is completed.

Important Fitment, Unlock & Licensing Notes

• Supported tuning platform: HP Tuners.

• TCM: GM T93 Global B.

• T93 upgrade required: The original T93 TCM must receive the HP Tuners GM T93 TCM Global B Upgrade Service before it can be tuned.

• HP Tuners licensing: 4 Universal Credits are required to license the supported T93 TCM. Credits are separate from the transmission tuning service and separate from the T93 upgrade service.

• Interface requirement: HP Tuners currently specifies an MPVI3 or MPVI4 for Global B T93 support.

• Software: The latest applicable version of HP Tuners VCM Suite Beta is required.

• Controller verification: T93 compatibility should be confirmed before ordering. HP Tuners currently reports support for all known T93 service numbers, but the controller should still be identified before the upgrade/tuning process begins.

• Engine tuning is separate: Purchasing transmission tuning does not include ECM tuning or ECM licensing.

• ECM unlock is separate: If engine tuning is also being performed, the Global B 3.0L Duramax uses the E66 ECM on supported LM2/LZ0 applications and requires its own HP Tuners Global B E66 upgrade and separate ECM licensing.

What's Included

• A custom T93 transmission calibration matched to the truck's supported configuration and intended use.

• Calibration of supported transmission parameters to improve shift behavior, drivability, and engine/transmission coordination.

• Remote-tuning guidance and calibration review.

• Review of requested transmission data logs.

• Calibration revisions as reasonably needed to complete the initial transmission tuning process.

• Personalized one-on-one support throughout the remote-tuning process.

Transmission Relearn

After flashing a new transmission calibration, the transmission may require time and normal driving to adapt to the new calibration.

Follow any vehicle-specific relearn instructions supplied by The Tune Shop. During the initial relearn period, use moderate throttle and allow the transmission to complete normal upshifts and downshifts before progressively increasing load and throttle.

Avoid immediately evaluating shift quality based only on the first few shifts following a flash.

What Customers Are Saying

• “The transmission feels much more predictable and better matched to the way I actually drive the truck.”

• “Shift behavior is noticeably more refined and the engine and transmission feel like they work together much better.”

• “The remote process made it easy to get the transmission behavior adjusted around my truck instead of settling for a generic calibration.”

Why Choose The Tune Shop?

The Tune Shop is built around personalized, one-on-one service rather than a one-size-fits-all calibration. We take the time to understand your truck, its modifications, engine calibration, tire size, intended use, and the transmission behavior you expect. Our calibrations are developed with real-world street use in mind and refined around the vehicle's actual combination, with the goal of delivering smooth, predictable transmission operation across daily driving, towing, highway use, and spirited driving.