Restore Dependable Shifting to Your Chevy Express Van
If your 2006-2014 Chevrolet Express 1500 work van is sidelined with transmission problems like harsh shifting, getting stuck in gear, or an illuminated check engine light, a faulty Transmission Control Module (TCM) is the most likely culprit. As a mechanic with over two decades of experience, I’ve seen firsthand how a failing T42 TCM can bring a reliable workhorse to a halt. This isn’t just an inconvenience; it’s lost time and money. This replacement TCM, part number 24235732, is the definitive solution to get your van back in service quickly and reliably.
This isn’t just a part; it’s a complete, ready-to-install fix. We pre-program each module to your van’s specific Vehicle Identification Number (VIN) before it ships. This crucial step eliminates the need for expensive trips to the dealership for programming. You get a component loaded with the latest GM software updates, ensuring it communicates perfectly with your vehicle’s systems right out of the box. It’s designed to resolve those persistent diagnostic trouble codes (DTCs) and restore the smooth, predictable performance your 4L60E or 4L80E transmission was built for.
Case Study: The Intermittent Shifting Nightmare
A local contractor brought in his ’09 Express 1500. The complaint was baffling: some days it shifted perfectly, other days it would slam into gear or refuse to upshift past 2nd. He’d already replaced a shift solenoid with no luck. After scanning it, I found a generic P0700 code but nothing specific pointing to a single solenoid. Experience told me this intermittent electrical behavior was a classic sign of internal TCM failure. The circuit board develops micro-fractures from heat cycles, causing unpredictable communication. We installed one of our VIN-programmed T42 modules, and the van was back on the road, shifting flawlessly, within the hour. It’s a common story for these reliable but hard-working vehicles.
Is Your Express Van Showing These Telltale Signs?
- ✔ Unpredictable, harsh, or delayed gear shifts that make driving feel unsafe.
- ✔ The vehicle is stuck in “limp mode,” usually in 2nd or 3rd gear, with limited power.
- ✔ Your dashboard is lit up with a Check Engine Light or Transmission Warning Light.
- ✔ Scan tool reveals DTCs like P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid errors), or other communication codes.
- ✔ A noticeable drop in fuel economy as the transmission isn’t operating efficiently.
- ✔ Complete failure to shift, either up or down, or delayed engagement from Park to Drive.
A Straightforward Guide to Installation
Replacing the 2006-2014 Express 1500 TCM is a job most DIYers can handle in their own driveway. The module is conveniently located and easily accessible.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the onboard systems.
- Locate the Module: On Chevrolet Express and GMC Savana vans, the TCM is typically found in the engine compartment on the right-hand (passenger) side.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly to avoid damaging them. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a ‘click’ as they lock in.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. While our programming clears most codes, it’s good practice to use a basic scan tool to clear any remaining stored DTCs. No core charge means you can simply discard your old part.
Verified Vehicle Compatibility
While this is the primary solution for the 2006-2014 Express 1500 TCM, this versatile T42 module also fits a wide range of other General Motors vehicles. Please verify your model and the location notes below. This part is interchangeable with service numbers including 24252114, 24234503, 24230461, 24235753, and others.
- Chevrolet Express / GMC Savana 1500/2500/3500 (2006-2014): Transmission; (RH engine compartment)
- Chevrolet Silverado / GMC Sierra 1500/2500 (2007-2013): Transmission; (next to battery)
- Chevrolet Tahoe / GMC Yukon (2007-2009): Transmission; (next to battery)
- Chevrolet Impala (2006-2011): Transmission; (lower air cleaner housing)
- Chevrolet Cobalt / HHR / Pontiac G5 / Saturn Ion (2006-2011): Transmission; (LH strut tower or engine compartment)
- Cadillac DTS (2006-2011): Transmission; (RH front engine compartment)
- Buick LaCrosse / Lucerne (2006-2011): Transmission; (lower air cleaner housing or LH engine compartment)
- Hummer H3 (2008-2010): Transmission; (RH rear engine compartment)
- And many more GM models. Please check the full fitment list or contact us with your VIN.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before we ship the part. Just provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
Is this a new or used part?
This is a high-quality, OEM-standard replacement part, fully tested and programmed with the latest software. It is backed by our one-year warranty for your peace of mind.
Where is the TCM located on my Express Van?
On the 2006-2014 Express and Savana vans, the Transmission Control Module is located in the engine bay, on the right-hand (passenger) side.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases where the TCM itself has failed, replacing it with this programmed module will resolve the P0700 code and any related solenoid codes.
What is the warranty on this module?
This part comes with a comprehensive one-year, hassle-free warranty. We stand by the quality and reliability of our programmed electronics.