6T70 Solenoid Kit, remanufactured and ready to install. Fits the 6T70. Ships fast from the USA.
If your Chevrolet Traverse, Equinox, Malibu or Impala, GMC Acadia or Terrain, Buick Enclave or LaCrosse, or Cadillac SRX with the 6T70 six-speed is throwing shift solenoid or pressure control codes, dropping into limp mode, or banging into gear one day and slipping the next, the part at the center of that complaint is usually this one. Despite the name, this is not a bag of loose solenoids. It is the complete remanufactured control solenoid valve body with the transmission control module bolted to it - the assembly GM and the rebuild trade call the TEHCM (transmission electro-hydraulic control module). The photo shows exactly that: the solenoid body with its row of terminals, the module cover, and the sealed pass-through connector that plugs into the vehicle harness.
The 6T70 has no shift cable or governor telling it when to shift. The TCM inside this assembly reads speed, throttle and temperature, then fires the solenoids that sit on top of the valve body. ATRA's 6T70 training material lays out the layout: two on/off shift solenoids that steer the clutch select valves, and six variable bleed pressure control solenoids. One of those sets line pressure, and the others each own a clutch circuit - 1-2-3-4, 2-6, 3-5-Reverse and the low/reverse and 4-5-6 side. Because the TCM and solenoids are one piece, a cracked circuit board trace, a weak coil or a solenoid seat worn by debris all show up the same way: the computer commands a gear the hydraulics cannot deliver, and it logs a code.
GM's service information describes the line pressure solenoid as normally high. Lose the electrical signal and pressure goes to maximum, which is why a failing assembly can feel harsh rather than soft.
Not every solenoid code means a bad module. On early units a broken 3-5-Reverse wave plate sets P0776 with no reverse, third or fifth, and no solenoid assembly will fix that - it needs the transmission opened. Check fluid level hot first, scan every stored code, and look at commanded versus actual line pressure. A pressure gauge on the line tap and the bench test GM publishes for this assembly will separate an electrical or solenoid fault from a mechanical one. Our 6T70 shift solenoid symptoms guide maps each solenoid to the gear and code it affects, and the pressure control solenoid guide walks through the line pressure test.
This listing is the general 6T70 version with no model year attached, so fitment comes down to your vehicle, not just the transmission name. The 6T70 family changed control generations for 2013: first-generation units used four pressure switches in the assembly, and the second generation dropped them and changed the valve body. Sonnax's identification article is blunt that a Gen 2 module will not work properly in a Gen 1 transmission, and that copying the part number off the old module has put the wrong one in more than a few cars. Before ordering, find the transmission RPO code on the Service Parts Identification label in the glove box (it starts with M) and send us the year and VIN so we can match the correct generation. Browse every part for this transmission on our 6T70 collection page; if you already know your years, the 2008-2017 6T70 solenoid kit is listed separately.
If the transmission is coming apart anyway because of a wave plate or burned clutches, pair this with a 6T70 master rebuild kit so the hard parts and the controls are refreshed together. A 6T70 shift kit addresses the known valve body wear points at the same time.
| Fits | 6T70 |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is the full control solenoid valve body with the transmission control module attached, as shown in the photo. GM's service information describes the solenoids as part of the assembly with no serviceable components, so the whole unit is replaced.
The 6T70 and 6T75 share the control assembly design within each generation, but programming and generation must match your vehicle. Send your year and VIN and we will confirm before it ships.
Yes. The module has to be programmed to your VIN with a J2534 pass-thru device or a dealer scan tool, and the shift adapts must be relearned afterward with the Service Fast Learn procedure.
Probably not. That combination is the classic broken 3-5-Reverse wave plate on early 6T70 units, which is an internal mechanical failure. Confirm with a line pressure test and a scan before replacing the control assembly.
Dexron VI automatic transmission fluid. Check the level hot, with the engine running, after the install.
