If you’re dealing with a transmission that seems to have a mind of its own, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen countless GM trucks sidelined by faulty electronics. This T42 Transmission Control Module (TCM), part number 24235753, is the definitive solution for your 2007 Silverado 2500 TCM issues, restoring the crisp, predictable shifting you depend on. The TCM is the brain of your automatic transmission, controlling everything from shift points to torque converter clutch engagement. When it fails, it can cause a cascade of problems that feel like a major mechanical failure.
The biggest advantage we offer is that this module arrives at your door pre-programmed to your truck’s specific Vehicle Identification Number (VIN). This eliminates the need for expensive dealership visits and specialized scan tools for programming. It’s a true plug-and-play fix designed for both professional installers and dedicated DIYers. Simply install the module, and you’re ready to get back to work.
Is Your Truck’s Transmission Acting Up?
A failing TCM can manifest in ways that are often misdiagnosed. Before you condemn the entire transmission, check if you’re experiencing any of these classic symptoms. In my shop, nine times out of ten, these signs point directly to a bad module.
- ✔ Harsh, banging shifts or delayed gear engagement.
- ✔ The truck is stuck in “limp mode,” usually in 2nd or 3rd gear.
- ✔ Your Check Engine Light is on with transmission-related Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-specific codes.
- ✔ A complete refusal to upshift or downshift, leading to terrible fuel mileage.
- ✔ Unpredictable electrical behavior or a transmission that seems to work fine when cold but fails once it warms up.
- ✔ Communication loss with the transmission module (U-codes).
A Technician’s Notebook: The Intermittent Shifting Ghost
A customer brought in a 2007 Silverado 2500 with a frustrating problem: it would shift perfectly for days, then suddenly start slamming into gear and get stuck in 3rd. No codes were stored. After checking fluid levels and wiring, I suspected the TCM. These modules often fail due to internal circuit board cracks that only separate when the unit heats up. On a long test drive, the symptoms appeared. We swapped in a VIN-programmed TCM, and the problem was solved instantly. This is a classic heat-related failure that a simple code scan can miss, making this pre-programmed module a powerful diagnostic and repair tool.
A Straightforward Guide to Installation
Replacing your 2007 Silverado 2500 TCM is a simple job that typically takes less than 30 minutes with basic hand tools. This module is located in the engine compartment, usually 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 Module: Find the TCM mounted near the battery on the driver’s side of the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Bolt the new, VIN-programmed module into place. Reconnect the electrical harnesses, ensuring they click securely into place.
- Final Steps: Reconnect the battery terminal. Start the truck and let it idle for a few minutes. If you have a basic scan tool, it’s good practice to clear any lingering fault codes from the computer’s memory.
Will This Fit My Vehicle?
This T42 TCM is a direct replacement for a wide range of General Motors vehicles and is interchangeable with part numbers including 24252114, 24234503, 24235753, 24240449, and others. It is guaranteed to fit the following models and configurations:
ALLURE 06-09 Transmission; (lower air cleaner housing)
AVALANCHE 1500 07-08 Transmission; (next to battery)
CANYON 08-12 Transmission; (RH rear engine compartment)
COBALT 06-10 Transmission; (LH strut tower)
COLORADO 08-12 Transmission; (RH rear engine compartment)
DTS 06-11 Transmission; (RH front engine compartment)
ENVOY 06-07 Transmission; (LH engine compartment), (8 cylinder)
ENVOY 08-09 Transmission; (LH engine compartment)
ENVOY XL 06 Transmission; (LH engine compartment), (8 cylinder)
EXPRESS 1500 VAN 06-14 Transmission; (RH engine compartment)
EXPRESS 2500 VAN 06-14 Transmission; (RH engine compartment)
EXPRESS 3500 VAN 06-14 Transmission; (RH engine compartment)
G5 07-10 Transmission; (LH strut tower)
G6 06-10 Transmission; (LH strut tower)
GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
HHR 06-11 Transmission; (LH engine compartment)
HUMMER H3 08-10 Transmission; (RH rear engine compartment)
IMPALA 06-11 Transmission; (lower air cleaner housing)
ION 06-07 Transmission; (behind LH strut tower)
LACROSSE 06-09 Transmission; (lower air cleaner housing)
LUCERNE 06-07 Transmission; (4.6L), (LH engine compartment)
LUCERNE 08-11 Transmission; (LH engine compartment)
MALIBU 06-10 Transmission; (LH frame rail)
MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
MONTANA 06-09 Transmission; (LH strut tower)
PURSUIT 06 Transmission; (LH strut tower)
RAINIER 06-07 Transmission
RENDEZVOUS 06-07 Transmission; (air cleaner box)
SAAB 9-7X 06-09 Transmission; (LH engine compartment)
SAVANA 1500 VAN 06-14 Transmission; (RH engine compartment)
SAVANA 2500 VAN 06-14 Transmission; (RH engine compartment)
SAVANA 3500 VAN 06-14 Transmission; (RH engine compartment)
SIERRA 1500 PICKUP 07 Transmission; (new style, smooth door skin), (next to battery)
SIERRA 1500 PICKUP 08 Transmission; (next to battery)
SIERRA 1500 PICKUP 09-13 Transmission; (next to battery), w/o hybrid option
SIERRA 2500 PICKUP 07 Transmission; new style (smooth door skin), 6.0L, (next to battery)
SILVERADO 1500 PICKUP 07 Transmission; (new style, smooth door skin), (next to battery)
SILVERADO 1500 PICKUP 08 Transmission; (next to battery)
SILVERADO 1500 PICKUP 09-13 Transmission; (next to battery), w/o hybrid option
SILVERADO 2500 PICKUP 07 Transmission; new style (smooth door skin), 6.0L, (next to battery)
SSR 05-06 Transmission; (front LH frame)
SUBURBAN 1500 07-08 Transmission; (next to battery)
TAHOE 07 Transmission; (next to battery)
TAHOE 08-09 Transmission; (next to battery), w/o auxiliary oil cooler pump
TERRAZA 06-07 Transmission; (LH strut tower)
TRAILBLAZER 06-07 Transmission; (LH engine compartment), (8 cylinder)
TRAILBLAZER 08-09 Transmission; (LH engine compartment)
TRAILBLAZER EXT 06 Transmission; (LH engine compartment), (8 cylinder)
UPLANDER 06-09 Transmission; (LH strut tower)
VUE 07-08 Transmission; 2.4L, (LH front engine compartment)
VUE 09 Transmission; 2.4L, w/hybrid, LH side front engine compartment, (shift control)
VUE 09 Transmission; 2.4L, w/o hybrid; (LH front engine compartment)
VUE 10 Transmission
YUKON 07 Transmission; (next to battery)
YUKON 08 Transmission; (next to battery), w/o auxiliary oil cooler control
YUKON 09 Transmission; (next to battery), w/o auxiliary oil cooler pump
YUKON XL 1500 07-08 Transmission; (next to battery)
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready for installation with no additional programming required, saving you time and money.
Is this a difficult part to install myself?
Not at all. For most vehicles like the 2007 Silverado 2500, the TCM is easily accessible in the engine bay. With basic hand tools, most people can complete the replacement in under 30 minutes.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the main engine computer (ECM). While this module often resolves the underlying issue causing the P0700 code (like a solenoid circuit fault), you should always diagnose any other specific codes that are present.
What is a core charge? Do I need to send my old part back?
There is no core charge for this part. You can keep your old module without any extra fees or hassle.
What kind of warranty is included?
This transmission control module comes with a one-year warranty, giving you confidence and peace of mind in your repair.