Pre-Programmed T43 TCM Transmission Control Module | 6L80E 6L90E | 2007-2019 GM Trucks SUVs

Description:

Pre-programmed and ready-to-install T43 transmission control module (TCM) for 2007–2019 GM vehicles equipped with the 6L80E or 6L90E 6-speed automatic transmission. Replaces a failed or non-communicating TCM without a dealer visit or programming charge.

Each unit is flashed with the latest GM calibration matched to your VIN before it ships — plug it in, drive it. No additional dealer programming required.

Two Programming Options:

Factory Flash (Stock): Programmed with the latest factory GM calibration for your VIN. Drop-in replacement — drives exactly like the original.

Custom Tuned: Calibrated to your specific needs — firmer shifts, raised line pressure, adjusted shift points, TCC lockup strategy changes, or torque management adjustments for modified vehicles or towing setups. Tell us what you're after at checkout.

Choose your option at checkout. Custom tuned units include revisions if needed.

Common Applications:

• 2007–2019 Chevrolet Silverado 1500 / 2500HD / 3500HD

• 2007–2019 GMC Sierra 1500 / 2500HD / 3500HD

• 2007–2014 Chevrolet Tahoe / Suburban / Avalanche

• 2007–2014 GMC Yukon / Yukon XL / Denali

• 2007–2014 Cadillac Escalade / ESV / EXT

• 2010–2015 Chevrolet Camaro SS / ZL1

• 2014–2017 Chevrolet SS Sedan

• 2009–2015 Cadillac CTS-V

Compatible OEM Part Numbers:

24041872, 24041873, 24041874, 24041875, 24224573, 24235001, 24235467, 24236316, 24236558, 24237336, 24237735, 24238708, 24238962, 24238968, 24239647, 24240651, 24241873, 24241890, 24243178, 24249178, 24251029, 24251412, 24251431, 24253420, 24254908, 24256051, 24256124, 24256939, 24257141, 24257213, 24257237, 24258304, 24259835, 24261870, 24264141, 24265053, 24265259, 24267576, 24270598, 24275871, 24275872, 24275873, 24275874, 24276637

If your part number is not listed, contact us with your VIN to verify compatibility before ordering.

About the T43 TCM:

The T43 is GM's external transmission control module used on the 6L80E and 6L90E 6-speed automatics from 2007–2019. Common failure symptoms include harsh shifts, no shift, stuck in limp mode, P0700 / P0613 / U0101 codes, or no communication with scan tools. A dealer-supplied replacement typically runs $400–$700 plus programming labor.