Restore Smooth Shifting to Your 2008-2012 GMC Canyon
If your GMC Canyon is suffering from erratic shifting, getting stuck in gear, or throwing transmission codes, the culprit is often a failing Transmission Control Module (TCM). As a seasoned technician with over two decades of experience, I’ve seen firsthand how a faulty TCM can sideline an otherwise reliable truck. This T42 TCM, part number 24241806, is the definitive solution, arriving pre-programmed to your truck’s specific VIN for a true plug-and-play repair that gets you back on the road without a costly trip to the dealership.
The TCM is the electronic brain of your automatic transmission, controlling everything from shift points and line pressure to torque converter lockup. When it fails, communication breaks down, leading to the frustrating and potentially damaging symptoms you’re experiencing. Our module restores that critical communication, ensuring your transmission operates precisely as the manufacturer intended.
A Technician’s Notebook: The Limp Mode Canyon
A customer brought in a 2011 Canyon, stuck in what he called ‘crawler gear’—what we know as limp mode (stuck in 3rd). His scanner showed a P0752 (Shift Solenoid A Stuck On) code, but after testing the solenoid and wiring, everything checked out. The problem was intermittent and frustrating. My experience pointed directly to the TCM. The internal drivers that control the solenoids were failing under heat. We installed one of our VIN-programmed T42 modules, cleared the codes, and the truck was shifting perfectly on the test drive. It’s a classic failure, and this part is the surefire fix.
Is Your GMC Canyon Exhibiting These Transmission Problems?
A failing TCM will give you clear warning signs. Ignoring them can lead to more severe transmission damage. If you’re noticing any of the following, it’s time for a replacement:
- ✔ Harsh, delayed, or unpredictable gear shifts.
- ✔ The truck refuses to shift out of a low gear (Limp Mode).
- ✔ Check Engine Light is on with transmission-related Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0751, or other solenoid circuit faults.
- ✔ A sudden drop in fuel economy.
- ✔ The transmission seems to slip between gears.
- ✔ Complete loss of communication with the module (no gear indicator on the dash).
A Straightforward Guide to Your Canyon TCM Installation
One of the best features of this module is its ease of installation. For the 2008-2012 Canyon TCM, the process is simple enough for a confident DIYer to complete in their own driveway in under 30 minutes.
- Safety First: Always disconnect the negative terminal from your truck’s battery to prevent any electrical shorts and to help reset the vehicle’s adaptive memory.
- Locate the Module: On the 2008-2012 GMC Canyon, the TCM is conveniently located in the engine bay, on the right-hand (passenger) side at the rear of the compartment.
- Disconnect and Remove: Carefully unclip the electrical connectors. Use a small flathead screwdriver to gently release the locking tabs if necessary. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Mount the new, VIN-programmed module in place and securely fasten the bolts. Reconnect the electrical connectors, ensuring they click firmly into place.
- Final Steps: Reconnect the battery terminal. Start the truck and let it idle for a few minutes. It’s a good practice to use a basic OBD2 scanner to clear any stored fault codes to ensure a clean slate.
Verified Vehicle Compatibility
This T42 TCM is a direct-fit replacement for a wide range of General Motors vehicles. While this listing is focused on the GMC Canyon, it is also compatible with the following models. Always verify your part number (24241806) or contact us with your VIN.
- ✔ GMC Canyon: 2008, 2009, 2010, 2011, 2012 (RH rear engine compartment)
- ✔ Chevrolet Colorado: 2008-2012 (RH rear engine compartment)
- ✔ Hummer H3: 2008-2010 (RH rear engine compartment)
- ✔ Chevrolet Silverado & GMC Sierra: 2007-2013 (various locations, typically next to battery)
- ✔ Chevrolet Tahoe/Suburban & GMC Yukon: 2007-2009 (next to battery)
- ✔ And many more GM cars, trucks, and SUVs from 2006-2014.
This module interchanges with part numbers: 24252114, 24234503, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, 24239926, 24240400, 24243901, 24243921, 24255280, 24256960, and others.
Do I need to program this 2008-2012 Canyon TCM?
Do I need to program this 2008-2012 Canyon TCM?
No! That’s the key benefit. We program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, saving you the time and expense of a dealership visit.
What tools are required for installation?
Basic hand tools are all you need. Typically, a socket wrench set (for the mounting bolts and battery terminal) and possibly a small flathead screwdriver (to help with the connector clips) are sufficient.
Is a core charge required?
No, there is no core charge. You can keep your old part, so you don’t have to worry about the hassle and cost of shipping it back.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code, meaning the TCM has requested the check engine light to be turned on. Often, a failing TCM is the root cause. Replacing the module will typically resolve the P0700 code along with the more specific codes (like solenoid faults) that triggered it.
What kind of warranty is included?
This module is backed by our comprehensive one-year warranty, giving you peace of mind and confidence in your repair.