Restore Your Truck’s Shifting with a Programmed Transmission Module
If your 2008-2012 Chevrolet Colorado is suffering from erratic shifting, getting stuck in gear, or throwing transmission codes, a failing Transmission Control Module (TCM) is the most likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty TCM can make a perfectly good truck feel unreliable. This T42 Transmission Control Module, part number 24235753, 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.
Common Symptoms of a Failing Colorado TCM
A bad TCM can manifest in several ways that are often misdiagnosed as internal transmission failure. Before you consider an expensive rebuild, check if your truck is showing these signs. In my shop, nine times out of ten, these symptoms on a Colorado point directly to the module.
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ The truck is stuck in “limp mode,” usually in 2nd or 3rd gear.
- ✔ Check Engine Light is on with Diagnostic Trouble Codes (DTCs) like P0700 (Transmission Control System Malfunction) or various solenoid codes (P0750-P0758).
- ✔ Inability to upshift or downshift, leading to poor acceleration and terrible fuel economy.
- ✔ Intermittent loss of communication with the module, causing unpredictable performance.
Case Study: The Colorado That Wouldn’t Shift
A customer brought in his 2010 Colorado, frustrated that it wouldn’t shift out of 2nd gear. Another shop had quoted him for a full transmission replacement, suspecting a mechanical failure. After plugging in my scan tool, I saw a P0700 code and a specific code for a shift solenoid circuit. Instead of immediately pulling the pan, I checked the TCM connectors and wiring first—all good. Knowing these T42 modules are a common failure point, we swapped in a VIN-programmed unit. The codes cleared, and the truck shifted perfectly on the test drive. We saved the customer thousands of dollars and hours of unnecessary labor by correctly diagnosing the 2008-2012 Colorado TCM as the root cause.
A Straightforward Guide to Installation
One of the best parts about this module is that it’s designed for an easy swap. For the Chevy Colorado and its sibling, the GMC Canyon, the TCM is located in the right-hand rear of the engine compartment, making it accessible for any DIYer with basic tools. The entire job should take less than 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 computer systems.
- Locate the Module: Find the TCM on the right-hand (passenger side) rear of the engine bay. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unclip the wiring harnesses. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Bolt the new, pre-programmed module into place and securely reconnect the wiring harnesses. You should hear a ‘click’ as they lock in.
- Final Steps: Reconnect the battery terminal. Start the truck and let it idle for a few minutes. While our programming resolves most codes, it’s good practice to use a basic scan tool to clear any stored DTCs.
Why This is the Smart Fix for Your 2008-2012 Colorado TCM
This isn’t just a replacement part; it’s a complete, hassle-free solution. The core benefit is our VIN-programming service. We flash the module with the latest GM software calibrated specifically to your truck. This ensures perfect communication between the engine and transmission, restoring precise shift points, proper torque converter lockup, and reliable performance. Built to meet or exceed OEM specifications, this module is backed by a one-year warranty, giving you confidence in your repair.
Will This Fit My Vehicle?
This module is a direct replacement for a wide range of GM vehicles equipped with the T42 TCM. While it is the correct part for the 2008-2012 Colorado, please verify compatibility with the list below.
This part will fit these makes and models with these options:
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- CANYON 08-12 Transmission; (RH rear engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- And many other GM cars, trucks, and SUVs from 2006-2014. Please check the full compatibility list or contact us with your VIN.
Frequently Asked Questions
Is any additional programming required after installation?
No. This module comes fully programmed to your vehicle’s VIN. It is ready for installation right out of the box, with no need for a scan tool or a visit to the dealer for programming.
What is a core charge? Do I need to send my old part back?
There is no core charge for this part. You can keep your old module, saving you the time and expense of shipping it back.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, a faulty TCM is the cause of the P0700 itself. Replacing it with this programmed unit will often resolve the code and any related solenoid codes.
How do I provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. This is crucial for us to program the module correctly for your specific vehicle.
What is the warranty on this part?
This transmission control module is backed by our comprehensive one-year, hassle-free warranty, giving you peace of mind with your purchase.