Is your 2007-2013 Chevrolet Silverado 1500 experiencing frustrating transmission issues like harsh shifting, getting stuck in gear, or a persistent check engine light? You’re not alone. These are classic signs of a failing Transmission Control Module (TCM), the electronic brain of your automatic transmission. A faulty TCM can make your reliable truck feel unpredictable and unsafe. This is the direct, no-hassle solution to restore your truck’s performance and peace of mind.
This OEM-quality T42 Transmission Control Module, corresponding to part number 24239224, arrives at your door fully pre-programmed to your truck’s specific Vehicle Identification Number (VIN). This critical step eliminates the need for expensive trips to the dealership for programming. It’s a true plug-and-play fix designed for both professional mechanics and DIY enthusiasts who want to get the job done right, the first time. It directly communicates with the 4L60E, 4L65E, and 4L70E transmissions in your Silverado, ensuring flawless communication and restoring the smooth, reliable shifting you depend on.
A Technician’s Notebook
I had a 2011 Silverado 1500 in the bay last month that was a real head-scratcher for the owner. He’d been chasing an intermittent P0700 code and a nasty 2-3 gear shift that would slam so hard it felt like he’d been rear-ended. He’d already replaced a shift solenoid with no luck. After connecting my scan tool, I saw erratic data coming from the TCM. It wasn’t consistently commanding the solenoids correctly. We installed one of these pre-programmed T42 modules. The difference was immediate. The shifts were crisp and smooth, the code vanished, and the customer drove away with a truck that felt brand new. It’s a reminder that sometimes the problem isn’t mechanical, but the computer controlling it.
Is Your Silverado Exhibiting These Transmission Problems?
A failing TCM can manifest in several ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement. Over my 20+ years in the shop, these are the most common complaints I’ve linked directly to a bad 2007-2013 Silverado 1500 TCM.
- ✔ Harsh, delayed, or erratic gear shifts that make driving uncomfortable.
- ✔ The truck is stuck in “limp mode,” usually in 2nd or 3rd gear, with no ability to upshift or downshift.
- ✔ The Check Engine Light or Transmission Warning Light is on, with Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, or other solenoid-related faults.
- ✔ A sudden drop in fuel economy (MPG) as the transmission operates inefficiently.
- ✔ The torque converter fails to lock up at highway speeds, causing higher RPMs.
- ✔ Complete loss of communication with the TCM, leading to a no-start or no-shift condition.
Your Straightforward 30-Minute Installation Guide
One of the best features of this part is its ease of installation. You don’t need a vehicle lift or specialized equipment. For most 2007-2013 Silverado 1500 models, the TCM is conveniently located in the engine bay.
- Safety First: Before you begin, disconnect the negative terminal from your truck’s battery to prevent any electrical shorts and help reset the vehicle’s computer systems.
- Locate the Old TCM: On your Silverado, you’ll typically find the module mounted right next to the battery under the hood. It’s a small silver box with a few electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket. Basic hand tools like a small socket set are all you’ll need.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely plug the electrical connectors back in, ensuring they click to confirm a solid connection.
- Final Steps: Reconnect the negative battery terminal. Start the truck 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 the smooth shifting performance.
Verified Fitment For Your GM Truck or SUV
While this is the perfect solution for the 2007-2013 Silverado 1500, this versatile T42 TCM is also compatible with a wide range of other General Motors vehicles. Please verify your model and options below.
- ✔ Chevrolet Silverado 1500 Pickup (2007-2013): New style ’07, located next to battery. 2009-2013 models without hybrid option.
- ✔ Chevrolet Tahoe/Suburban/Avalanche (2007-2009): Located next to battery.
- ✔ GMC Sierra 1500 Pickup (2007-2013): New style ’07, located next to battery. 2009-2013 models without hybrid option.
- ✔ GMC Yukon / Yukon XL (2007-2009): Located next to battery.
- ✔ Chevrolet Express / GMC Savana Vans (2006-2014): Located in RH engine compartment.
- ✔ And many other GM cars, trucks, and SUVs from 2006-2014. Please see the full compatibility list for details on models like the Impala, HHR, Colorado, Canyon, and more.
Frequently Asked Questions
Do I need to program this module after I receive it?
No. This is the key benefit. We program the module to your vehicle’s VIN before shipping. It is ready for plug-and-play installation right out of the box, saving you from a costly dealership visit.
Where is the TCM located on my 2011 Silverado 1500?
On most 2007-2013 Silverado and Sierra 1500 trucks, the Transmission Control Module is conveniently located in the engine bay, mounted on a bracket right next to the battery.
Will this part fix a P0700 trouble code?
Yes, very often. A P0700 code is a general fault request from the TCM to the main engine computer. A failing TCM is one of the most common root causes for this code, and replacing it with this programmed unit is a reliable fix.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part or dispose of it without the hassle of needing to ship it back to us.