End Your Silverado’s Transmission Troubles for Good
If you’re dealing with a 2007-2013 Silverado 1500 that’s shifting harshly, getting stuck in gear, or throwing transmission codes, you know how frustrating it can be. As a technician with over two decades of experience, I’ve seen countless truck owners worry they need a full transmission rebuild when the real culprit is a faulty Transmission Control Module (TCM). This VIN-programmed T42 TCM, part number 24235340, is the direct, reliable solution to restore your truck’s performance and get you back on the road with confidence.
The TCM is the brain of your automatic transmission, controlling everything from shift points to torque converter lockup. When it fails, communication breaks down, leading to the unpredictable and often unsafe driving conditions you’re likely experiencing. Our module is meticulously programmed to your truck’s specific VIN, ensuring it works perfectly right out of the box—no expensive trips to the dealership for programming are required. This is the definitive fix for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E.
A Technician’s Notebook
I remember a 2011 Silverado 1500 that came into the shop stuck in 3rd gear (limp mode) with a P0700 code. The owner had already replaced two shift solenoids based on a generic code reader’s suggestion, with no success. After a quick diagnostic, we confirmed the TCM was the issue. The internal circuits had failed, causing intermittent signal loss to the solenoids. We installed one of our VIN-programmed modules, and in less than an hour, the truck was shifting as smoothly as the day it left the factory. It’s a classic case where targeting the brain, not just the symptoms, provides the real, lasting repair.
Is Your Silverado Showing These Telltale Signs?
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. Addressing it promptly can prevent further damage to your transmission’s mechanical components.
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ The vehicle is stuck in a single gear, often called “limp mode,” to protect the transmission.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on your dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid errors), or other communication codes.
- ✔ A sudden drop in fuel economy as the transmission isn’t operating efficiently.
- ✔ The transmission seems to slip out of gear or fails to downshift when you slow down.
DIY-Friendly Installation in Under 30 Minutes
One of the best features of this module is its simple, plug-and-play installation. You don’t need to be a master mechanic to get this job done in your own driveway. For most 2007-2013 Silverado 1500 TCM replacements, the unit is located right next to the battery in the engine compartment.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: On your Silverado, it’s typically a silver box mounted in a bracket next to the battery.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, VIN-programmed TCM into place and securely reconnect the wiring harnesses. You should hear a click as they lock in.
- Final Steps: Reconnect the battery terminal. While the module is pre-programmed, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory.
Verified Fitment for Your GM Vehicle
While this is the perfect solution for the 2007-2013 Silverado 1500 TCM, this versatile T42 module is also compatible with a huge range of other GM cars, trucks, and SUVs. It is a direct replacement for multiple part numbers including 24242391, 24234503, 24252114, 24230461, 24234274, and more. Please verify your vehicle in the list below.
- Chevrolet: Silverado 1500/2500 (2007-2013), Tahoe (2007-2009), Suburban 1500 (2007-2008), Avalanche 1500 (2007-2008), Express/Savana Vans (2006-2014), Cobalt (2006-2010), HHR (2006-2011), Impala (2006-2011)
- GMC: Sierra 1500/2500 (2007-2013), Yukon / Yukon XL (2007-2009), Envoy (2006-2009), Canyon (2008-2012)
- Cadillac: DTS (2006-2011)
- Buick: LaCrosse (2006-2009), Lucerne (2006-2011), Rainier (2006-2007)
- Pontiac: G6 (2006-2010), Grand Prix (2006-2008)
- And many more GM models.