Restore Your Truck’s Shifting Performance
If you’re dealing with a 2007-2013 Silverado 1500 that’s shifting harshly, getting stuck in gear, or throwing transmission codes, a failing Transmission Control Module (TCM) is a very common culprit. As a technician, I’ve seen these T42 modules cause countless headaches for truck owners. This isn’t just an annoyance; it’s a critical failure that impacts your truck’s drivability, fuel economy, and safety. This replacement Transmission Control Module, part number 24243901, is the definitive solution to get your truck’s transmission operating like new again.
The biggest advantage here is that we handle the programming for you. Before we ship it, we flash the module with your truck’s specific Vehicle Identification Number (VIN) and the latest GM software. This means no expensive trips to the dealership for programming. It arrives at your door ready for a true plug-and-play installation, making it a perfect job for a DIY mechanic or a time-saving solution for a professional shop. By replacing your faulty module, you’re not just fixing a symptom; you’re restoring the precise electronic control your 4L60E, 4L65E, or 4L70E transmission needs for smooth, reliable performance.
Case Study: A Tricky Diagnosis
A customer brought in a 2011 Silverado 1500 with an intermittent but severe problem: it would occasionally slam into gear and then get stuck in 3rd (limp mode). He had already replaced two shift solenoids with no luck. When I hooked up my scan tool, I saw the P0700 code, but the solenoid codes were inconsistent. After monitoring live data, I noticed the voltage readings to the solenoids would flicker and drop right before a harsh shift. This pointed directly to the brain—the TCM. The internal circuitry was failing under load. We installed a VIN-programmed 2007-2013 Silverado 1500 TCM, cleared the codes, and the truck has been shifting perfectly ever since. It’s a classic example of how symptoms can be misleading, but a failing module is often the root cause.
Is Your Silverado Showing These Telltale Signs?
- ✔ Harsh, banging shifts or delayed gear engagement.
- ✔ The truck is stuck in “limp mode” and won’t shift out of 2nd or 3rd gear.
- ✔ Your Check Engine Light is on with transmission-related Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, P0758, or other solenoid circuit faults.
- ✔ Inability to upshift or downshift, leading to poor acceleration and terrible fuel mileage.
- ✔ The transmission feels like it’s slipping between gears.
- ✔ Complete loss of communication with the transmission module.
A Straightforward Guide to Installation
For the 2007-2013 Silverado 1500 TCM, the replacement is surprisingly simple and can be done in your driveway in under 30 minutes. The module is typically located in the engine compartment, right next to the battery.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts and to help reset the system.
- Locate the Old TCM: Find the module next to the battery. It will have several large electrical connectors attached to it.
- Disconnect and Remove: Carefully unplug the wiring harnesses. They have locking tabs that need to be pressed or lifted. Once unplugged, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely plug in the wiring harnesses, making sure they click and lock into position.
- Final Steps: Reconnect the negative battery terminal. Start the truck and let it idle for a few minutes. While the module is pre-programmed, it’s always best practice to use a basic OBD2 scan tool to clear any stored fault codes from the ECU.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles equipped with 4-speed automatic transmissions. While this page focuses on the Silverado, it is also compatible with the following models. Please verify your part number (24243901 or an interchange number) for a guaranteed fit.
- Chevrolet: Silverado 1500 (07-13), Tahoe (07-09), Suburban 1500 (07-08), Avalanche 1500 (07-08), Express Van (06-14), Colorado (08-12), Impala (06-11), Cobalt (06-10), HHR (06-11), Monte Carlo (06-07), SSR (05-06)
- GMC: Sierra 1500 (07-13), Yukon / Yukon XL (07-09), Savana Van (06-14), Canyon (08-12), Envoy (06-09)
- Cadillac: DTS (06-11)
- Buick: LaCrosse (06-09), Lucerne (06-11), Rainier (06-07)
- Pontiac: G5 (07-10), G6 (06-10), Grand Prix (06-08)
- Saturn: Vue (07-10), Aura (07-09), Ion (06-07)
- Hummer: H3 (08-10)
- Saab: 9-7X (06-09)
Frequently Asked Questions
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means we load your vehicle’s unique VIN and the latest GM software onto the module before shipping. This ensures it communicates perfectly with your truck’s engine computer and other systems right out of the box, eliminating the need for a dealership visit.
Do I need any special tools for this installation?
No special tools are required. Basic hand tools like a socket set to remove the mounting bolts and disconnect the battery are all you’ll need. The entire process is designed to be straightforward for a DIYer.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause (like internal shorts causing solenoid codes), you should confirm if other specific codes (e.g., P0753) are present. A failing TCM is a very common reason for a P0700 code.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module or recycle it locally without the hassle of shipping it back to us.
How can I be sure this is the correct part for my truck?
The best way is to match the part number from your existing module to 24243901 or one of the listed interchange numbers. You can also use our vehicle selector tool or contact our expert support with your VIN, and we’ll verify the fitment for you.