Tired of Unpredictable Shifting in Your GMC Canyon?
If your 2008-2012 GMC Canyon is suffering from harsh shifts, getting stuck in gear, or throwing transmission codes, you’re not just dealing with an annoyance—you’re facing a common failure point: the Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen countless GM trucks sidelined by faulty electronics. The TCM is the brain of your automatic transmission, and when it fails, it can mimic a major mechanical problem, causing erratic behavior and poor performance. This VIN-programmed T42 TCM is the definitive solution, designed to restore the crisp, reliable shifting your truck had from the factory.
From the Diagnostic Bay: The Intermittent Canyon
A customer brought in his ’09 Canyon complaining of random, hard 1-2 shifts and occasionally getting stuck in 3rd gear (limp mode), but only after driving for 20+ minutes. The check engine light was on with a general P0700 code. My initial scan showed no specific solenoid faults, making diagnosis tricky. We checked fluid levels and wiring, which were all fine. From experience, I know that heat soak is a classic trigger for electronic failure in these modules. The components on the circuit board break down under thermal stress, causing intermittent faults that don’t always set a specific code. We replaced his old unit with a VIN-programmed 2008-2012 Canyon TCM, and the problem was solved instantly. It’s a textbook case I’ve seen hundreds of times on these GM platforms.
Is Your GMC Canyon Exhibiting These Telltale Symptoms?
- ✔ Abrupt, jerky, or delayed gear changes.
- ✔ Transmission is stuck in a single gear (often called “limp mode”).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, especially P0700, P0750, or other solenoid-related faults.
- ✔ The truck refuses to upshift or downshift as expected.
- ✔ A noticeable drop in fuel economy.
- ✔ Complete loss of communication with the transmission module.
DIY Installation: Get Your Truck Shifting Smoothly in Minutes
One of the best features of this module is that it’s a direct-fit, plug-and-play part. No trip to the dealership is required for expensive programming. For the 2008-2012 GMC Canyon, the process is incredibly straightforward.
- Safety First: Always disconnect the negative terminal from your truck’s battery to prevent electrical shorts and help reset the vehicle’s computer systems.
- Locate the Module: On your Canyon, the TCM is typically found in the engine bay, mounted on the right-hand (passenger) side, towards the rear of the compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors. Use a socket wrench to remove the mounting bolts holding the old module in place.
- Install the New TCM: Mount the new module securely with the bolts and plug in the electrical connectors until they click firmly into place.
- Reconnect and Verify: Reconnect the battery terminal. Start the engine and allow it to idle for a few minutes. If you have a basic scan tool, it’s good practice to clear any stored DTCs. Take a test drive to confirm smooth shifting has been restored.
Verified Fitment For Your Vehicle
This module is a guaranteed fit for the following vehicles and configurations. It also serves as a direct replacement for a wide range of other GM cars, trucks, and SUVs, making it a versatile and reliable part for any professional or DIY mechanic’s toolkit.
- CANYON 08-12 Transmission; (RH rear engine compartment)
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- And many more GM models from 2006-2014. This part is interchangeable with service numbers such as 24252114, 24234503, 24239926, and others.
Do I need to program this 2008-2012 Canyon TCM?
Do I need to program this 2008-2012 Canyon TCM?
No. This module comes pre-programmed to your vehicle’s specific VIN. Just provide your VIN at checkout, and the module will arrive ready for immediate installation, saving you hundreds in dealership programming fees.
Where is the TCM located on my 2010 GMC Canyon?
On the 2008-2012 GMC Canyon and its sibling, the Chevrolet Colorado, the TCM is located in the engine bay. You’ll find it mounted on the right-hand (passenger) side, near the rear of the engine compartment.
Will this part fix a P0700 trouble code?
A P0700 code is a general fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While this module often resolves the root cause of a P0700, it’s essential to scan for more specific transmission codes (e.g., P0751, P0756) to confirm the TCM is the faulty component.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep or dispose of your old module without the hassle of returning it.
What kind of warranty is included?
This transmission control module is backed by our one-year, hassle-free warranty, giving you peace of mind and confidence in your repair.