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2017+ GM 8/10 Speed Automatic T87A TCM Unlock
Tune your T87A TCM with HP Tuners
Ready to tune your transmission with HP Tuners? We are pleased to offer tuning support for T87A TCM-equipped 2017+ GM vehicles in the latest version of VCM Suite. Due to the complexity of this controller, all T87A TCMs must be upgraded via one of the upgrade options below to enable tuning in VCM Suite (BETA). After the upgrade is complete, users must license their controller for (4) GM Credits if using an MPVI device, or (4) Universal Credits using an MPVI2, MPVI2+, or MPVI3 device. Once licensed, users can access important transmission parameters in VCM Editor within shift scheduling, shift pressures, shift timing, torque management, and more to improve drivability and power delivery.
The T87A TCM can be found the following 6-speed, 8-speed, and 10-speed transmission equipped vehicles:
Supported GM vehicles with 8-speed transmission and T87A TCM:
Supported GM vehicles with 10-speed transmission and T87A TCM:
Supported GM vehicles with the 6-speed transmission and T87A TCM: