Restore Your Minivan’s Reliability
As a seasoned technician, I understand the frustration when your family vehicle, like a 2006-2009 Chevrolet Uplander, starts acting up. Unpredictable, harsh shifting or the dreaded “limp mode” can turn a simple trip to the grocery store into a stressful ordeal. The transmission control module (TCM) is the brain of your automatic transmission, and when it fails, it can mimic a catastrophic transmission failure. Before you consider an expensive and time-consuming transmission rebuild, consider the source of the commands: this direct-fit T42 Transmission Control Module, part number 24240449.
This isn’t just a replacement part; it’s a complete solution. We pre-program each module to your Uplander’s specific Vehicle Identification Number (VIN), ensuring it communicates flawlessly with your vehicle’s computer systems right out of the box. This eliminates the need for expensive dealership programming, saving you both time and money. By replacing a faulty module, you can resolve common issues like erratic gear changes, poor fuel economy, and persistent transmission-related diagnostic trouble codes (DTCs).
Case Study: The Uplander That Didn’t Need a New Transmission
I recall a customer bringing in their ’07 Uplander. The van was stuck in 3rd gear, the check engine light was on, and they had been quoted over $3,000 for a transmission rebuild at another shop. After plugging in my scan tool, I saw a P0700 code, which is a general transmission fault request, but more specifically, I found codes related to solenoid circuit malfunctions and lost communication with the TCM. Instead of tearing down the transmission, I inspected the module at the LH strut tower. After swapping in a VIN-programmed TCM, all the codes cleared, and the van shifted perfectly. The customer saved thousands and was back on the road in under an hour. It’s a classic example of why diagnosing the electronics first is critical.
Is Your Uplander Showing These Transmission Troubles?
- ✔ Harsh, slamming, or delayed gear shifts during acceleration.
- ✔ The vehicle is stuck in one gear (often called “limp mode”) and will not shift up or down.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔ Your scan tool shows DTCs such as P0700, P0750, P0753, P0758, or other solenoid-related codes.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission seems to slip out of gear unexpectedly.
DIY-Friendly Installation Guide
Replacing the 2006-2009 UPLANDER TCM is a straightforward job that most DIY mechanics can complete in their driveway. For the Uplander, the module is conveniently located and easy to access.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s computer systems.
- Locate the TCM: On the 2006-2009 Uplander, you will find the transmission control module mounted to the driver’s side (LH) strut tower in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the electrical harnesses, ensuring they click securely into position.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and let it idle for a few minutes. While the module is plug-and-play, it’s good practice to use a basic OBD2 scan tool to clear any stored fault codes.
Will This Fit My Vehicle?
This T42 TCM is a guaranteed fit for the 2006-2009 Chevrolet Uplander. It also serves as a direct replacement for a wide range of other General Motors vehicles that use the same T42 platform. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24240400, and 24239224. If you own one of the following vehicles and are experiencing transmission issues, this module is the reliable solution you need:
- Chevrolet Uplander (2006-2009) – Located at LH strut tower
- Pontiac Montana SV6, Buick Terraza, Saturn Relay (2006-2009) – Located at LH strut tower
- Chevrolet Cobalt & Pontiac G5/Pursuit (2006-2010) – Located at LH strut tower
- Chevrolet HHR (2006-2011) – Located in LH engine compartment
- And many other GM cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for a plug-and-play installation, saving you a trip to the dealership.
Is this a new or used part?
This is a high-quality, OEM-spec replacement part that has been expertly tested and prepared with the latest software for your vehicle. It is backed by our one-year warranty.
What is the location of the TCM on my 2008 Uplander?
For the 2006-2009 Uplander, the TCM is located in the engine compartment, mounted on the driver’s side (LH) strut tower, making it very accessible for replacement.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause (like a faulty solenoid driver or internal short), you should confirm with a scanner if other specific codes (like P0753) are present, which strongly point to a bad TCM.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part, eliminating the hassle and expense of shipping it back.