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T43 TEHCM (Transmission Electro-Hydraulic Control Module) for GM 6T70 / 6T75 / 6T80 six-speed transaxles, programmed to your VIN with the latest GM calibration and ready to install.
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.
This is the Gen 1 T43 controller. 2013 and newer 6T70 / 6T75 units use the Gen 2 T76 TEHCM, which is a different module and is not covered by this listing. If you're not sure which you have, send us your VIN and we'll tell you before you order.
Before you buy — read this. The TEHCM is not an external box. It mounts inside the transmission on the valve body. Replacing it means dropping the pan and fluid. Budget for a filter, pan gasket, and fluid, and plan on a transmission adaptive relearn (Service Fast Learn) with a capable scan tool after install.
Symptoms of a failed TEHCM:
Harsh, delayed, or flared shifts
Stuck in limp / failsafe, no upshift past 3rd
No torque converter lockup
Wrong gear ratio and solenoid performance codes — P0716, P0717, P0722, P0751, P0776, P0796, P0842, P0847, P0871, P0973, P0974, P2714, P2723, P2729
U0101 lost communication with TCM
Speedometer or gear display dropping out
What you get:
One T43 TEHCM programmed to your VIN with the current GM calibration
No dealer programming required
Direct replacement — no wiring or harness changes
What we need from you at checkout:
Full 17-digit VIN
Year / Make / Model / Engine
Transmission RPO code (MH2, MH4, MHH, MHB, etc. — on the SPID label in the glovebox or door jamb)
Part number off your existing TEHCM if you can read it
Covered part numbers:
24251411 · 24264114 · 24264378 · 24267182 · 24275869
Fits (verify by VIN):
Buick Enclave 2008–2012
Buick LaCrosse 2010–2012
Chevrolet Equinox 2008–2012
Chevrolet Impala 2012
Chevrolet Malibu 2008–2012
Chevrolet Traverse 2009–2012
GMC Acadia 2007–2012
GMC Terrain 2010–2012
Pontiac G6 2007–2009
Saturn Aura 2007–2009
Saturn Outlook 2007–2010
Saturn Vue 2008–2010
Shipping is calculated at checkout and is not included in the listed price. Multiple modules ship in one box and we refund the duplicate shipping charge.
Not sure this is your module? Send your VIN and transmission RPO to 605-728-0591 or evan@ewaltsautotuning.com and we'll confirm before you order.
T43 TEHCM (Transmission Electro-Hydraulic Control Module) for GM 6T70 / 6T75 / 6T80 six-speed transaxles, programmed to your VIN with the latest GM calibration and ready to install.
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.
This is the Gen 1 T43 controller. 2013 and newer 6T70 / 6T75 units use the Gen 2 T76 TEHCM, which is a different module and is not covered by this listing. If you're not sure which you have, send us your VIN and we'll tell you before you order.
Before you buy — read this. The TEHCM is not an external box. It mounts inside the transmission on the valve body. Replacing it means dropping the pan and fluid. Budget for a filter, pan gasket, and fluid, and plan on a transmission adaptive relearn (Service Fast Learn) with a capable scan tool after install.
Symptoms of a failed TEHCM:
Harsh, delayed, or flared shifts
Stuck in limp / failsafe, no upshift past 3rd
No torque converter lockup
Wrong gear ratio and solenoid performance codes — P0716, P0717, P0722, P0751, P0776, P0796, P0842, P0847, P0871, P0973, P0974, P2714, P2723, P2729
U0101 lost communication with TCM
Speedometer or gear display dropping out
What you get:
One T43 TEHCM programmed to your VIN with the current GM calibration
No dealer programming required
Direct replacement — no wiring or harness changes
What we need from you at checkout:
Full 17-digit VIN
Year / Make / Model / Engine
Transmission RPO code (MH2, MH4, MHH, MHB, etc. — on the SPID label in the glovebox or door jamb)
Part number off your existing TEHCM if you can read it
Covered part numbers:
24251411 · 24264114 · 24264378 · 24267182 · 24275869
Fits (verify by VIN):
Buick Enclave 2008–2012
Buick LaCrosse 2010–2012
Chevrolet Equinox 2008–2012
Chevrolet Impala 2012
Chevrolet Malibu 2008–2012
Chevrolet Traverse 2009–2012
GMC Acadia 2007–2012
GMC Terrain 2010–2012
Pontiac G6 2007–2009
Saturn Aura 2007–2009
Saturn Outlook 2007–2010
Saturn Vue 2008–2010
Shipping is calculated at checkout and is not included in the listed price. Multiple modules ship in one box and we refund the duplicate shipping charge.
Not sure this is your module? Send your VIN and transmission RPO to 605-728-0591 or evan@ewaltsautotuning.com and we'll confirm before you order.