Restore Your Truck’s Shifting Performance
If your 2008-2012 GMC Canyon is suffering from erratic shifting, getting stuck in gear, or throwing transmission codes, you’ve likely pinpointed the culprit: a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen this exact issue hundreds of times. The original T42 TCM can develop internal faults, leading to frustrating and unpredictable driving behavior. This replacement module, part number 24235753, is the definitive, hassle-free solution to get your truck operating smoothly again.
The biggest hurdle in this repair is typically the programming. Dealerships charge a premium for this service, and it requires special equipment. We eliminate that step entirely. By providing your vehicle’s VIN at checkout, we program the module specifically for your truck. This means it arrives at your door ready for a true plug-and-play installation, restoring communication and precise control over your 4L60E automatic transmission. This isn’t just a part; it’s a complete repair solution for your 2008-2012 Canyon TCM.
Case Study: The Misleading Solenoid Code
A customer brought in his 2011 Canyon, complaining it was stuck in 3rd gear (limp mode) and the check engine light was on. His local shop had quoted him for a full solenoid pack replacement based on a P0756 code (2-3 Shift Solenoid Performance). From experience, I know that T42 modules often fail in a way that causes false solenoid codes. We first checked the wiring and found no issues. Instead of a costly internal transmission repair, we installed a VIN-programmed TCM. After a 15-minute swap and clearing the codes, the truck shifted perfectly. The root cause wasn’t the solenoid at all, but the module controlling it. This saved the customer over $800 and significant vehicle downtime.
Is Your GMC Canyon Showing These Telltale Signs?
- ✔ Unpredictable, harsh, or delayed gear shifts.
- ✔ The truck is stuck in “limp mode” and will not shift out of 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0751, P0756, or other solenoid-related faults.
- ✔ A noticeable drop in fuel economy due to inefficient shifting.
- ✔ Complete loss of communication with the transmission module.
A Straightforward Guide to Your TCM Replacement
Replacing the 2008-2012 Canyon TCM is a job most DIYers can handle in their own driveway in under 30 minutes. No specialized tools are needed.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: On the 2008-2012 Canyon, the TCM is typically found in the engine bay, on the right-hand (passenger) side towards the rear of the compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into place.
- Final Steps: Reconnect the battery terminal. Start the truck and allow it to idle for a few moments. While the module is pre-programmed, it’s always good practice to use a basic OBD2 scanner to clear any stored fault codes from the ECU.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following vehicles, solving common transmission issues. It is cross-compatible with numerous part numbers including 24242391, 24234503, and 24252114.
- GMC Canyon: 2008, 2009, 2010, 2011, 2012 (Transmission; RH rear engine compartment)
- Chevrolet Colorado: 2008, 2009, 2010, 2011, 2012 (Transmission; RH rear engine compartment)
- Hummer H3: 2008, 2009, 2010 (Transmission; RH rear engine compartment)
- Note: This T42 module also fits a wide range of other 2006-2014 GM vehicles. Please verify your part number or contact us for fitment confirmation.
Frequently Asked Questions
What exactly does the Transmission Control Module do?
The TCM acts as the brain for your automatic transmission. It receives data from various vehicle sensors to control shift points, torque converter lockup, and line pressure, ensuring smooth and efficient operation.
Why is VIN programming so important for this part?
VIN programming loads your truck’s specific software and calibrations onto the module. Without it, the TCM won’t communicate correctly with your vehicle’s other computers, leading to continued shifting problems or a no-start condition. Our service saves you a mandatory and costly trip to the dealership.
Will this fix my P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, replacing a faulty 2008-2012 Canyon TCM will resolve the root cause, allowing this and other related codes to be cleared permanently.
Is this installation difficult for a beginner?
Not at all. Thanks to the pre-programming, this is a simple unbolt-and-replace job. With basic hand tools and our instructions, most people can complete the swap in under half an hour.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module or dispose of it without the hassle of returning it.
What kind of warranty is included?
This module is backed by our one-year warranty, giving you peace of mind and confidence in your repair.