Restore Flawless Shifting to Your Silverado 1500
If your 2007-2013 Chevrolet Silverado 1500 is suffering from harsh shifts, getting stuck in gear, or throwing transmission codes, you’re not alone. These are classic signs of a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen how a faulty TCM can sideline an otherwise perfectly good truck. This OEM-quality T42 TCM, part number 24230461, is the definitive solution to restore your truck’s transmission performance and reliability without the excessive cost and hassle of a dealership visit.
A Technician’s Notebook: The Limp Mode Silverado
A customer brought in his ’11 Silverado 1500, frustrated because it was stuck in what felt like third gear—a classic case of “limp mode.” The check engine light was on, and my scan tool pulled a P0700 (Transmission Control System Malfunction). After verifying the wiring and fluid levels were good, the diagnosis pointed squarely at the TCM. These modules, which live in the harsh environment of the engine bay, can fail from heat cycles and vibration. We replaced his old unit with one of our VIN-programmed modules. The entire job took less than an hour, and he drove away with his truck shifting as smoothly as the day it left the factory. This pre-programmed part is the most efficient and reliable fix for these common GM transmission issues.
Is Your Silverado Exhibiting These Transmission Faults?
A failing TCM will give you clear warning signs. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Erratic and Harsh Shifting: Abrupt, jerky gear changes or a noticeable bang when the transmission shifts.
- ✔ Stuck in Gear / Limp Mode: The transmission refuses to shift out of a single gear (often 2nd or 3rd) to protect itself from further damage.
- ✔ Warning Lights: A persistent Check Engine Light or Transmission Warning Light on your dash. Common trouble codes include P0700, P0750-P0758 (solenoid circuit faults), and other transmission-related DTCs.
- ✔ Delayed Engagement: A long pause after shifting from Park to Drive or Reverse before the gear engages.
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter lockup issues caused by the faulty module can lead to a significant drop in MPG.
Your 30-Minute Path to a Smooth-Shifting Truck
This isn’t a job that requires a full-day commitment or specialized equipment. For most 2007-2013 Silverado 1500 models, the TCM is easily accessible. Follow these simple steps for a successful installation.
- Safety First: 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: On the Silverado 1500, the TCM is typically mounted right next to the battery in the engine compartment. It’s a silver box with large electrical connectors.
- Swap the Part: Carefully unplug the wiring harness connectors. Then, unbolt the old module from its mounting bracket. Secure the new, VIN-programmed module in its place and firmly reconnect the wiring harnesses.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. While our programming resolves most codes, it’s good practice to use a basic OBD2 scan tool to clear any stored DTCs from the previous fault.
Verified Vehicle Compatibility
This T42 TCM is a direct-fit replacement for a wide range of General Motors vehicles. While this page focuses on the 2007-2013 Silverado 1500 TCM, it is also compatible with the following models. Please verify your specific location as noted.
Interchangeable Part Numbers: 24252114, 24234503, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, and more.
- Chevrolet Silverado 1500 Pickup (2007-2013): Located next to the battery. (2007 models must be new body style with smooth door skin).
- Chevrolet Tahoe / Suburban / Avalanche (2007-2009): Located next to the battery.
- GMC Sierra 1500 Pickup (2007-2013): Located next to the battery. (2007 models must be new body style with smooth door skin).
- GMC Yukon / Yukon XL (2007-2009): Located next to the battery.
- Chevrolet Express / GMC Savana Vans (2006-2014): Located in the RH engine compartment.
- …and many other GM cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means this module arrives ready for installation. We flash it with your truck’s specific Vehicle Identification Number and the latest GM software. This ensures it communicates perfectly with your engine and other systems, eliminating the need for an expensive programming session at a dealership.
Do I need any special tools for this job?
No. Basic hand tools, such as a socket set to disconnect the battery and unbolt the module, are all you need. The installation is designed to be straightforward for both DIYers and professional mechanics.
Is there a core charge?
Absolutely not. You are not required to send your old, faulty module back to us. This saves you time, return shipping costs, and the hassle of waiting for a core refund.
Will this fix a P0700 check engine light code?
A P0700 code is a generic code indicating the TCM has detected a fault. In many cases where the TCM itself has failed, replacing it with this programmed unit will resolve the P0700 and any related specific codes (like for solenoids). However, you should always ensure the transmission wiring and components are in good condition.
What is the warranty on this part?
This transmission control module is backed by our comprehensive one-year warranty, giving you peace of mind that you’re installing a quality, reliable part in your vehicle.