Is Your Chevrolet Uplander Shifting Erratically?
If your 2006, 2007, 2008, or 2009 Chevrolet Uplander is experiencing harsh shifting, getting stuck in gear, or showing transmission-related warning lights, a faulty Transmission Control Module (TCM) is the likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating smooth gear changes, managing torque converter lockup, and ensuring overall drivetrain efficiency. When it fails, it can cause a host of frustrating and potentially damaging issues, turning your reliable family minivan into an unpredictable machine.
From the Diagnostic Bay
We had a 2008 Uplander come into the shop that was driving the owner crazy. It would shift perfectly for a few miles, then suddenly slam into gear or refuse to shift past 2nd. The check engine light was on, but the codes were intermittent solenoid faults that didn’t make sense. After chasing wiring and testing solenoids, we finally focused on the TCM. We swapped in one of our VIN-programmed T42 modules, and the van immediately drove like new. It’s a classic case where the central controller was causing ghost-like issues that seemed to be everywhere else. This module is often the direct fix for those hard-to-diagnose transmission gremlins.
The Ultimate Solution: A VIN-Programmed Uplander Transmission Control Module
This genuine OEM-quality T42 Transmission Control Module, part number 24241806, is the definitive solution for your Uplander’s transmission woes. Unlike generic modules that require expensive and time-consuming trips to the dealership for programming, this unit arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This ensures seamless communication with your vehicle’s other computers, like the Engine Control Module (ECM), for perfect, out-of-the-box performance. We load the latest GM software updates, which often corrects inherent factory shifting logic and improves long-term durability.
Symptoms of a Failing Uplander TCM
- ✔ Harsh, delayed, or unpredictable gear shifts.
- ✔ The vehicle enters “limp mode,” often stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are stored.
- ✔ Failure to upshift or downshift correctly, leading to poor acceleration and fuel economy.
- ✔ A complete loss of transmission function or intermittent electrical behavior.
Installation and Compatibility
Installation is a straightforward process for a DIY mechanic or any professional technician. On the 2006-2009 Chevrolet Uplander, the TCM is typically located on the driver’s side of the engine bay, mounted to the LH strut tower. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Reconnect everything, and you’re ready to go. We recommend using a basic scan tool to clear any old fault codes after installation. Best of all, there is no core charge, so you don’t have to worry about the cost or hassle of sending your old part back.
This module is a direct replacement for a wide range of service numbers, including 24252114, 24234503, 24230461, 24241806, and many more, ensuring broad compatibility across the GM family of vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E.
Frequently Asked Questions
Will this part fit my 2007 Chevrolet Uplander?
Yes, this Transmission Control Module is a guaranteed fit for all 2006, 2007, 2008, and 2009 Chevrolet Uplander models. It is pre-programmed to your specific VIN to ensure perfect compatibility.
Do I need to have this module programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s VIN before we ship it. This makes the installation plug-and-play, saving you the time and expense of a dealership visit.
Where is the TCM located on my Uplander?
On the 2006-2009 Uplander, the TCM is found in the engine compartment, typically mounted on the driver’s side (LH) strut tower. Always disconnect the vehicle’s battery before attempting removal or installation.
Can a bad TCM cause a P0700 trouble code?
Absolutely. A P0700 code is a general transmission fault request from the TCM to the ECM to turn on the check engine light. A failing TCM is a very common cause for this code, often accompanied by more specific transmission codes that can be read with a proper scan tool.
Is there a core charge for this part?
No, we do not require a core charge. You can keep your old part without any additional fees or hassle.