GM TEHCM Solenoid-Pack Transmission Control Module Cloning — Mail-In Bench Service (6L & 6T Six-Speeds)
Wrench light, "Service Transmission," harsh or no shifts, and stuck in limp mode after a valve-body or solenoid-pack swap? Mail in your original TEHCM plus a matching donor and we clone the VIN, calibration, and adaptation across on the bench so the replacement drops in — no dealer SPS programming trip.
Sending several modules? Add them all — one box, one return-shipping charge.
GM TEHCM / solenoid-pack TCM — RWD 6L45 / 6L50 (CTS, ATS, SRX, Camaro V6, Colorado / Canyon) and 6L80 / 6L90 (Silverado, Sierra 1500-3500HD, Tahoe, Suburban, Yukon, Escalade, Avalanche, Express / Savana, Camaro SS, Pontiac G8, CTS-V), plus FWD / AWD 6T70 / 6T75 / 6T80 (Malibu, Impala, Equinox, Terrain, LaCrosse, Regal, Traverse, Acadia, Enclave), roughly 2006-2020. Verified by VIN + module label before you ship.
How It Works
Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.
Pay & Get Address
Click "Order Now", pay securely online. We email shipping address + instructions within minutes.
Ship Your Module
Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Your prepaid inbound label arrives by email — shipping to us costs you nothing.
Get It Back Fast
Work typically completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.
What You Get
- Your original TEHCM's VIN, calibration, and learned shift-adaptation data cloned onto the donor solenoid-pack module
- Donor part-number and family compatibility verified by VIN and module label before you ship
- Bench read + verify of both units before anything is written
- Bench communication test on a stable, regulated power supply before return
- Clear install notes — including the shift-adaptation relearn drive cycle to complete at the car
- Straight answer up front if your donor is not a compatible match, before you pay
- Modules returned with tracking — return-shipping speed your choice at checkout
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
Service path ($250 flat)
- Clone — VIN, calibration, and learned adaptation copied from your original TEHCM onto the donor solenoid pack
- Result installs without a dealer SPS programming trip on supported applications
- Used / second-hand solenoid-pack TEHCM installation prep — the most common use
- New AC Delco solenoid-pack TEHCM programmed to your VIN before it goes in
RWD 6-speed — 6L45 / 6L50 (light-duty Hydra-Matic)
- 6L45 — Cadillac CTS 3.6 RWD (2008-2013), ATS 2.0T / 2.5L (2013-2019)
- 6L50 — Camaro V6 (2010-2015), CTS / CTS Coupe 3.6, SRX 3.6 (2010-2016)
- 6L50 — Cadillac STS 3.6 and related RWD applications
- 2015-2016 Chevrolet Colorado / GMC Canyon and other light RWD applications (verify by VIN)
- Roughly 2007-2019 depending on platform
RWD 6-speed — 6L80 / 6L90 (heavy-duty Hydra-Matic)
- 6L80 — Silverado / Sierra 1500 (2007-2013), Tahoe, Yukon, Suburban, Avalanche
- 6L80 — Escalade / ESV / EXT, Camaro SS, Pontiac G8 GT / GXP, Chevrolet SS / Caprice PPV, Cadillac CTS-V
- 6L90 — Silverado / Sierra 2500HD / 3500HD, Suburban 2500, Yukon XL 2500
- 6L90 — Express / Savana full-size vans and heavy-duty applications
- 6L80E / 6L90E swap builds using a factory GM TEHCM (verify the part number)
- Roughly 2006-2020 depending on platform
FWD / AWD 6-speed — 6T70 / 6T75 / 6T80 (Hydra-Matic)
- 6T70 — Malibu, Equinox, Terrain, Impala, LaCrosse, Regal, Captiva Sport
- 6T70 — Saturn Aura / Vue, Pontiac G6 late applications
- 6T75 — Traverse, Acadia, Enclave, Outlook, Impala 3.6, LaCrosse 3.6, Malibu 3.6
- 6T80 — heavier FWD / AWD applications: Traverse, Acadia, Enclave, Impala 3.6
- Equinox, Terrain and related crossovers (verify by VIN)
- Roughly 2007-2019 depending on platform
Best for
- Replacing a failed valve body / solenoid pack (the TEHCM goes with it)
- Internal mode switch or solenoid performance codes with a "Service Transmission" message
- Used TEHCM installed and the truck is stuck in limp / failsafe mode
- Avoiding a dealer or shop SPS programming charge on a module you already sourced
NOT this listing — verify first
- 8-speed 8L45 / 8L90 T87A — our separate GM T87A clone / unlock service
- 10-speed 10L80 / 10L90 controllers — contact us to verify before ordering
- Global B (T93) transmission controllers — no bench clone path, excluded
- 4L60E / 4L80E four-speeds — the TCM function lives in the PCM, see our GM ECM/PCM cloning service
- Mechanical valve-body, clutch, or pump wear — that is a transmission repair, not a module job
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- Valve body / solenoid pack replaced and the transmission won't shift right until the module is programmed
- "Service Transmission" or wrench light with internal mode switch or solenoid performance codes
- Used TEHCM installed and the vehicle is stuck in limp / failsafe (single-gear) mode
- Harsh, delayed, or no shifts after a solenoid-pack swap on a 6L or 6T six-speed
- New AC Delco solenoid-pack TEHCM that needs your VIN and calibration before install
- You want to avoid a dealer SPS programming trip for a module you already have
Won't fix:
- Does not include the donor solenoid pack / TEHCM — you source a matching used or new unit (we verify the part number first)
- Does not repair mechanical valve-body wear, worn clutches, or a failing pump — that is a transmission mechanical repair, separate from the module
- Does not replace the shift-adaptation relearn drive cycle done at the car after install — the transmission relearns fast-idle and shift pressures on the road
- Does not cover the 8-speed T87A Global A TCM — that is our separate GM T87A clone / unlock service
- Does not cover the 10-speed 10L80 / 10L90 or Global B (T93) controllers under this listing — contact us to verify yours
- Does not fix codes caused by a low or contaminated fluid level, wiring, connectors, or a failing internal harness
- Does not bypass proof of ownership
Before you order
You diagnose, we service the module.
We don't have your car and we don't diagnose it. Order once you or your mechanic have confirmed this module is the cause. If the work is completed and the car still has the same symptom because of another fault, the work is still done — a bench re-test under warranty is free.
A clone copies what is in your module.
We transfer the data as we read it. If another shop or tool already worked on the module — an unfinished clone, a tune, a delete — that data can come across too. Tell us before you ship.
What "plug-and-play" means.
No dealer programming should be needed when your original data is intact, the donor matches your module (same type, hardware and software family) and the rest of the car works. It isn't a promise that the car will start or run.
The TCM lives inside the solenoid pack — replace one and you replace both
On GM's 6L and 6T six-speeds the transmission control module is not a separate computer bolted to the case — the TEHCM is built into the valve body / solenoid pack. So when a mode-switch or solenoid fault forces a solenoid-pack replacement, the module goes with it, and the new pack carries no VIN, no calibration, and none of your transmission's learned adaptation. The dealer answer is an SPS session on GM's servers. The bench answer is this clone: we copy your original TEHCM's identity onto the donor so the car accepts it as its own. Remember this is data, not mechanics — the donor pack must match your part number, and the transmission still needs its shift-adaptation relearn drive cycle after install.
Shipping Instructions
These details are also emailed to you the moment your payment clears.
Verify first: text or email us your VIN plus a clear photo of your original TEHCM / solenoid-pack part-number label (and the donor's, if you have it) — a technician confirms the family and part number are a compatible match before you ship. Then send both units (your original TEHCM for the clone, plus the donor) to PO Box 120241, Arlington TX 76012 if you ship USPS — or 1009 Oakwood Ln # 120241, Arlington TX 76012 if you ship UPS or FedEx (UPS and FedEx cannot deliver to a PO Box). We clone the data on the bench, test communication, and ship both back via the return option you pick at checkout (Standard $29.95, UPS 2-Day $54.95, or UPS overnight $94.95).
What to include in your box
- Your original TEHCM / solenoid pack (for the clone) AND the donor solenoid-pack TEHCM
- Year, make, model, engine, and transmission (e.g. 2015 Silverado 1500 5.3L 6L80)
- VIN of the vehicle
- GM part number off BOTH module / solenoid-pack labels — we pre-verify the match
- What is wrong now: mode-switch code, solenoid performance code, limp mode, cranks-shifts-wrong after swap, etc.
- Whether the transmission is otherwise mechanically healthy (fluid level, no slipping) so we can flag mechanical vs module issues
- Proof of ownership (title, registration, or bill of sale)
- Your name, return address, and phone number
Ship to
Auto Module Lab
If shipping USPS
PO Box 120241
Arlington, TX 76012
If shipping UPS or FedEx
1009 Oakwood Ln # 120241
Arlington, TX 76012
Your prepaid inbound label (already addressed) arrives by email the moment you order; the return label is bought when your module reaches the bench and ships on the speed you chose at checkout.
Need to perform this job remotely?
Get an Auto Module Lab Remote Programming Kit and have our technicians program supported vehicles from your shop — the car stays on your lift and nothing gets posted.
Buy the interface once — program with us anytime. Supported procedures vary by vehicle, module, OEM software and security requirements.
Frequently Asked
Still have a question? Text us — replies in minutes.
What is a TEHCM and why does replacing the solenoid pack need programming?
Which GM transmissions does this cover?
Is this the same as the 8-speed T87A service?
Will the cloned module be plug-and-play?
Do you supply the donor solenoid pack?
My transmission slips or shudders mechanically — will this fix it?
What is the shift-adaptation relearn, and do I have to do it?
How much is it and how does the mail-in work?
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Where we serve GM TEHCM Solenoid-Pack TCM Clone
Mail-in means nationwide — we accept modules from all 50 states and DC from our Arlington, Texas lab. See your state, metro, or specific vehicle:
All 50 states + DC
Ready to ship?
$250 flat, fast turnaround. Pay now, get the shipping address by email, drop it in the mail. Your module is typically back on your bench within a week.