Get Your Silverado Shifting Smoothly Again
If you’re dealing with the frustration of a transmission that slams into gear, refuses to shift, or has your truck stuck in limp mode, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen countless GM trucks, especially the 2007-2013 Silverado 1500, sidelined by a faulty Transmission Control Module (TCM). This isn’t just an inconvenience; it affects your truck’s performance, fuel economy, and safety. This T42 series TCM, part number 24255280, is the direct-fit, reliable solution that gets you back on the road without a costly trip to the dealership.
From the Diagnostic Bay: A Common Silverado Story
A customer brought in his ’09 Silverado 1500, a work truck he depends on daily. The complaint was classic: it would shift hard from 1st to 2nd, and occasionally get stuck in 3rd gear with the check engine light on. He’d already replaced a shift solenoid with no luck. A quick scan showed a P0700 (Transmission Control System Malfunction) and an intermittent solenoid circuit code. Experience pointed straight to the TCM. These modules are notorious for internal circuit board failures after years of heat cycles in the engine bay. We installed one of our VIN-programmed T42 modules, cleared the codes, and had him back on the road in less than an hour. The pre-programming saved him hundreds in dealership fees and got his business running again the same day.
Is Your Truck Showing These Symptoms?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution for your 2007-2013 Silverado 1500 TCM issues.
- âś” Harsh, erratic, or delayed gear shifts.
- âś” Vehicle is stuck in one gear (often called “limp mode”).
- âś” Check Engine Light or Transmission Warning Light is illuminated.
- âś” Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, P0751, P0756, or other solenoid-related codes.
- âś” Poor acceleration and a noticeable drop in fuel efficiency.
- âś” The torque converter fails to lock up, leading to higher RPMs at cruising speed.
- âś” Intermittent loss of communication with the module.
A Straightforward Guide to Installation
One of the best features of this part is its simple, DIY-friendly installation. No specialized tools are needed, and you can have the job done in your own driveway.
- 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 most 2007-2013 Silverado 1500 models, the TCM is conveniently located in the engine compartment, right next to the battery.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, VIN-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Reconnect and Verify: Reattach the negative battery terminal. Start the vehicle and let it idle for a few minutes. Use a basic OBD2 scanner to confirm there are no active transmission codes and take it for a test drive.
Verified Vehicle Compatibility
While this is the correct part for a 2007-2013 Silverado 1500 TCM replacement, it also fits a wide range of other General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. Please verify your model and options below. This part is a direct replacement for service numbers including 24252114, 24234503, 24242391, and 24255280.
- Chevrolet Silverado 1500 Pickup (2007-2013): Transmission; (next to battery), w/o hybrid option
- Chevrolet Tahoe (2007-2009): Transmission; (next to battery)
- GMC Sierra 1500 Pickup (2007-2013): Transmission; (next to battery), w/o hybrid option
- GMC Yukon (2007-2009): Transmission; (next to battery)
- Chevrolet Avalanche 1500 (2007-2008): Transmission; (next to battery)
- Chevrolet Suburban 1500 (2007-2008): Transmission; (next to battery)
- Chevrolet Express / GMC Savana Vans (2006-2014): Transmission; (RH engine compartment)
- Cadillac DTS (2006-2011): Transmission; (RH front engine compartment)
- Buick Lucerne (2006-2011): Transmission; (LH engine compartment)
- Hummer H3 (2008-2010): Transmission; (RH rear engine compartment)
- …and many other GM cars, trucks, and SUVs from 2006-2014. Please check the full fitment list.
Frequently Asked Questions
Do I need to have this programmed by a dealer?
No. We program the module to your vehicle’s specific VIN before shipping. It arrives ready for plug-and-play installation, saving you time and money.
How do I provide my VIN?
You can enter your vehicle’s 17-digit VIN during the checkout process. This ensures we load the correct factory software for your specific vehicle configuration.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part or recycle it locally without the hassle of shipping it back.
What if this doesn’t fix my problem?
This module is a reliable fix for the symptoms and codes listed. However, if your issue persists, it may indicate a mechanical problem within the transmission itself. This part is backed by our one-year warranty against defects.
Will this fix a P0700 code?
A P0700 is a general code indicating the TCM has detected a fault. Often, replacing a faulty TCM will resolve the P0700 and any other related transmission codes.