Restore Smooth, Reliable Shifting to Your Chevrolet Uplander
If your 2006-2009 Chevrolet Uplander is suffering from erratic shifting, getting stuck in gear, or has an illuminated check engine light, a failing Transmission Control Module (TCM) is the most likely culprit. As a seasoned technician, I’ve seen firsthand how a faulty TCM can make a reliable family minivan feel unpredictable and unsafe. This isn’t just an annoyance; it’s a critical failure that affects drivability and fuel economy. This direct-fit T42 TCM, corresponding to part number 24238856, is the definitive solution to restore your vehicle’s transmission performance and your peace of mind.
The biggest hurdle with electronic module replacement has always been the expensive and time-consuming trip to the dealership for programming. We eliminate that step entirely. By providing your vehicle’s VIN at checkout, we program the module specifically for your Uplander. It arrives at your door ready for a true plug-and-play installation, loaded with the latest GM software updates to ensure optimal communication between your engine and transmission.
From the Diagnostic Bay
I recall a 2008 Uplander that came into the shop with a classic complaint: “It shifts hard sometimes, and yesterday it wouldn’t shift out of 2nd gear.” The owner was worried about a costly transmission rebuild. After hooking up the scan tool, I saw a P0700 (Transmission Control System Malfunction) and a few intermittent solenoid circuit codes. Instead of jumping to conclusions, we checked the wiring and found no issues. The problem was the TCM itself, which was failing intermittently due to heat and vibration. Replacing it with a pre-programmed unit like this one solved all the issues in under 30 minutes, saving the customer hundreds, if not thousands, over a transmission replacement.
Is Your Minivan Showing These Telltale Signs?
A failing TCM will give you clear warnings. If you’re experiencing any of the following, it’s time to consider a replacement 2006-2009 Uplander TCM to prevent further damage.
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are present.
- ✔ Inability to upshift or downshift correctly, leading to poor acceleration.
- ✔ A noticeable decrease in fuel efficiency.
Get Your Uplander Shifting Smoothly: A 30-Minute Fix
This is a repair you can confidently handle in your own driveway. For the 2006-2009 Uplander, the TCM 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 system.
- Locate the Module: On your Uplander, the TCM is typically found mounted to the driver’s side (LH) strut tower in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the locking tabs to avoid damage. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Mount the new, pre-programmed module in place and securely fasten the bolts. Reconnect the electrical harnesses until they click.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, it’s good practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the engine and enjoy smooth shifting!
Verified Fitment for Your General Motors Vehicle
While this page focuses on the 2006-2009 Uplander TCM, this module (interchangeable with numbers like 24252114, 24234503, 24239224, etc.) fits a wide range of GM vehicles. Please verify your specific model below.
This part will fit these makes and models with these options
UPLANDER 06-09 Transmission; (LH strut tower)
ALLURE 06-09 Transmission; (lower air cleaner housing)
AURA 07-09 Transmission; (LH frame rail front)
AVALANCHE 1500 07-08 Transmission; (next to battery)
CANYON 08-12 Transmission; (RH rear engine compartment)
COBALT 06-10 Transmission; (LH strut tower)
COLORADO 08-12 Transmission; (RH rear engine compartment)
DTS 06-11 Transmission; (RH front engine compartment)
ENVOY 06-09 Transmission; (LH engine compartment)
EXPRESS VANS 06-14 Transmission; (RH engine compartment)
G5 07-10 Transmission; (LH strut tower)
G6 06-10 Transmission; (LH strut tower)
GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
HHR 06-11 Transmission; (LH engine compartment)
HUMMER H3 08-10 Transmission; (RH rear engine compartment)
IMPALA 06-11 Transmission; (lower air cleaner housing)
ION 06-07 Transmission; (behind LH strut tower)
LACROSSE 06-09 Transmission; (lower air cleaner housing)
LUCERNE 06-11 Transmission; (LH engine compartment)
MALIBU 06-10 Transmission; (LH frame rail)
MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
MONTANA 06-09 Transmission; (LH strut tower)
RAINIER 06-07 Transmission
RENDEZVOUS 06-07 Transmission; (air cleaner box)
SAAB 9-7X 06-09 Transmission; (LH engine compartment)
SAVANA VANS 06-14 Transmission; (RH engine compartment)
SIERRA PICKUPS 07-13 Transmission; (next to battery)
SILVERADO PICKUPS 07-13 Transmission; (next to battery)
SSR 05-06 Transmission; (front LH frame)
SUBURBAN 1500 07-08 Transmission; (next to battery)
TAHOE 07-09 Transmission; (next to battery)
TERRAZA 06-07 Transmission; (LH strut tower)
TRAILBLAZER 06-09 Transmission; (LH engine compartment)
VUE 07-10 Transmission; (engine compartment)
YUKON 07-09 Transmission; (next to battery)
YUKON XL 1500 07-08 Transmission; (next to battery)
What does VIN programming mean for me?
What does VIN programming mean for me?
It means this module arrives ready to install right out of the box. We flash it with your vehicle’s specific information and the latest GM software, so it works perfectly without requiring an expensive programming service from a dealership. It’s a true plug-and-play solution.
Will this part fix my transmission warning light?
Yes, if the warning light and trouble codes (like P0700) are being caused by a faulty TCM, this replacement part will resolve the issue once installed and old codes are cleared from the system’s memory.
Where is the TCM on my 2007 Uplander?
On the 2006-2009 Chevrolet Uplander, the Transmission Control Module is located in the engine compartment, mounted on the driver’s side (LH) strut tower, making it very accessible for replacement.
Do I need any special tools for this installation?
No special tools are required. Basic hand tools like a socket set to remove the mounting bolts are all you need. An OBD2 scanner is recommended to clear codes, but not required for the physical installation.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, saving you time and return shipping costs.