Is your 2006-2009 Chevrolet Uplander experiencing frustrating and unpredictable transmission problems? If you’re dealing with harsh bangs into gear, getting stuck in limp mode, or seeing a persistent Check Engine light, a failing Transmission Control Module (TCM) is the most likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty TCM can make a perfectly good vehicle feel unreliable. This T42 series TCM, part number 24241806, is the definitive, hassle-free solution to restore your minivan’s smooth and dependable performance.
We take the guesswork and extra cost out of the repair by pre-programming this module directly to your Uplander’s Vehicle Identification Number (VIN). This means it arrives ready for a true plug-and-play installation, eliminating the need for an expensive trip to the dealership for programming. It’s designed to be a direct-fit replacement, restoring communication between the engine and transmission to ensure precise shift points, proper torque converter lockup, and improved fuel economy.
Case Study: The Uplander That Wouldn’t Shift
A customer brought in a 2008 Uplander that was stuck in 3rd gear—a classic limp mode symptom. They were told by another shop they needed a full transmission rebuild, a quote that ran into the thousands. After pulling the codes, I saw a P0700 (Transmission Control System Malfunction) and a few solenoid communication errors. Instead of jumping to the worst-case scenario, I inspected the TCM. After swapping it with a known-good unit, the van shifted perfectly. This pre-programmed module provided the exact same fix, saving the customer a massive amount of money and stress. It’s often the brain, not the brawn, of the transmission that fails.
Is Your Uplander Showing These Transmission Warning Signs?
- ✔️ Harsh, delayed, or erratic gear shifts that feel like a jolt or bang.
- ✔️ The vehicle is stuck in a single gear (limp mode) and won’t shift up or down.
- ✔️ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔️ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related faults.
- ✔️ A noticeable decrease in fuel efficiency.
- ✔️ The transmission seems to slip out of gear or struggles to engage Drive or Reverse.
DIY-Friendly Installation Guide for Your Uplander
Replacing the 2006-2009 Uplander TCM is a straightforward job that most DIYers can complete in under 30 minutes with basic hand tools. This will get your family’s vehicle back on the road safely and quickly.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and help reset the system.
- Locate the Module: On the 2006-2009 Uplander, the TCM is conveniently located on the driver’s side of the engine bay, mounted to the LH strut tower.
- Disconnect and Remove: Carefully unclip the electrical connectors from the old module. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Mount your new, VIN-programmed TCM onto the bracket and securely re-fasten the bolts. Reconnect the electrical harnesses, ensuring they click into place.
- Final Steps: Reconnect the negative battery terminal. While the module is plug-and-play, it’s always a good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory.
Verified Compatibility for Your Vehicle
This module is a guaranteed fit for the 2006-2009 Chevrolet Uplander. It is also a direct replacement for a wide range of other General Motors vehicles that use the T42-style TCM, ensuring OEM-level function and reliability across many platforms. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24240400, and more. Please verify your model in the fitment list below.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM acts as the computer for your automatic transmission. It receives data from various sensors on the engine and vehicle to control exactly when the transmission shifts gears, ensuring smooth operation and optimal fuel economy.
Do I need to get this module programmed by a dealer?
No. The key benefit of this part is that we pre-program it to your vehicle’s specific VIN before shipping. This makes it a true plug-and-play solution, saving you the time, cost, and hassle of a dealership visit.
Will this fix a P0700 trouble code?
Yes, in many cases. The P0700 code is a general fault code indicating the TCM has detected a problem. If the TCM itself is the source of the failure, replacing it with this module will resolve the root cause and allow the code to be cleared.
Is this a difficult part to install myself?
Not at all. For a 2006-2009 Uplander, the TCM is easily accessible on the driver’s side strut tower in the engine bay. With basic tools, most people can swap it out in under half an hour. No complex procedures are required.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part or dispose of it without the need to send it back, simplifying your repair process.