Restore Smooth, Reliable Shifting to Your Chevrolet Uplander
Is your 2006-2009 Chevrolet Uplander suffering from erratic shifting, getting stuck in gear, or showing a check engine light? A faulty Transmission Control Module (TCM) is often the culprit behind these frustrating and concerning issues. As a technician with over two decades of experience, I’ve seen how a failing TCM can sideline a perfectly good family vehicle. This replacement T42 TCM, part number 24252114, is the definitive solution to restore your minivan’s transmission performance and your peace of mind.
This isn’t just a generic part. We pre-program it to your Uplander’s specific Vehicle Identification Number (VIN) before shipping. This critical step ensures it communicates flawlessly with your vehicle’s systems right out of the box. You get to skip the expensive and time-consuming trip to the dealership for programming, making this a smart, cost-effective repair you can trust.
Case Study: A Tricky Diagnosis
A customer brought in their ’08 Uplander with the transmission stuck in 3rd gear (limp mode) and a P0700 code on the scanner. They were worried about a complete transmission failure. After confirming power and ground to the module, we suspected the TCM itself. In my shop, internal circuit failure on these T42 modules, especially from heat cycles over the years, is a common sight. We installed one of our VIN-programmed modules, cleared the codes, and the van was shifting perfectly on the test drive. The pre-programming saved the customer hours of vehicle downtime and the extra cost of a dealer visit.
Is Your Minivan Showing These Transmission Warning Signs?
- ✔️ Harsh, slamming shifts or sudden, jerky gear changes.
- ✔️ The vehicle feels stuck in one gear, often called “limp mode.”
- ✔️ Check Engine Light or Transmission Warning Light is on.
- ✔️ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related faults.
- ✔️ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔️ A noticeable drop in fuel economy due to inefficient shifting.
A Straightforward Guide to Installation
Replacing the 2006-2009 Uplander 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.
- Locate the Module: On the 2006-2009 Uplander, the TCM is typically found mounted to the driver’s side (LH) strut tower in the engine bay.
- Disconnect and Remove: Carefully unclip the electrical connectors. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed TCM in the same location. Securely reconnect the electrical harnesses.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic scan tool to clear any stored fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the 2006-2009 Uplander TCM and is also compatible with a wide range of other GM vehicles. It interchanges with part numbers 24234503, 24230461, 24252114, and more. While this page is focused on the Uplander, this T42 module also fits:
- Chevrolet Cobalt (2006-2010)
- Pontiac G6 (2006-2010)
- Chevrolet HHR (2006-2011)
- Saturn Vue (2007-2010)
- Chevrolet Impala (2006-2011)
- Buick LaCrosse (2006-2009)
- And many more models listed in our full fitment data.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation, saving you time and money.
Is this a difficult part to replace myself?
Not at all. For the Chevy Uplander, the TCM is located on the driver’s side strut tower, making it very accessible. With basic hand tools, most people can complete the replacement in under 30 minutes.
What is a core charge?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item, so you can keep your old module without any hassle or extra steps.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the main computer. While this module often resolves the underlying issue causing the P0700 (like a bad solenoid driver), you should always diagnose any other accompanying codes to ensure there aren’t other problems.