Restore Smooth, Reliable Shifting to Your Minivan
If your 2006-2007 Terraza is struggling with delayed gear engagement, harsh shifting, or is stuck in limp mode, the problem is very often a faulty Transmission Control Module (TCM). As the electronic brain of your automatic transmission, a failing TCM can cause a host of frustrating and potentially unsafe driving conditions. This replacement T42 TCM, part number 24235753, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair that gets your family’s vehicle back to performing as it should.
Case Study: A Tricky Diagnosis
I recently had a 2007 Terraza in my bay with a classic complaint: the check engine light was on, and the van would barely shift out of 2nd gear. The owner was worried about a costly transmission rebuild. We pulled the codes and found a P0700 (Transmission Control System Malfunction) and a P0752 (Shift Solenoid ‘A’ Stuck On). While the solenoid code points to a specific part, my experience with these GM platforms immediately made me suspect the TCM. After verifying the solenoid’s circuit was intact, we swapped in a VIN-programmed TCM. The difference was immediate. The codes cleared, the transmission shifted perfectly through all gears, and the customer avoided a much more expensive repair. This is a common failure, and this module is the reliable fix.
Is Your Terraza Exhibiting These Transmission Issues?
- ✔ Unpredictable or jarring shifts between gears.
- ✔ The vehicle feels stuck in one gear (often 2nd or 3rd), a condition known as ‘limp mode’.
- ✔ 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 economy or a transmission that seems to be overheating.
- ✔ Complete loss of communication with the transmission, preventing it from shifting at all.
The Smart Solution: A Pre-Programmed 2006-2007 Terraza TCM
The biggest hurdle in replacing a modern vehicle module is the need for expensive dealership programming. We eliminate that step entirely. By providing us with your vehicle’s VIN during checkout, we flash the module with the latest GM-certified software specific to your Terraza. This ensures all shift points, torque converter lockup strategies, and diagnostic parameters are perfectly calibrated right out of the box. You get a part that works correctly the first time, saving you hundreds in programming fees and valuable time.
DIY-Friendly Installation: A 30-Minute Fix
- ✔ 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 the 2006-2007 Terraza, the TCM is conveniently located at the driver’s side (LH) strut tower in the engine bay.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Then, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical connectors. Ensure they click into place.
- ✔ Final Steps: Reconnect the negative battery terminal. While the system may reset, it’s best practice to use a basic OBD-II scan tool to clear any stored transmission codes. Start the vehicle and test drive to confirm smooth operation.
Verified Fitment for Your Vehicle
This module is a direct replacement for part number 24235753 and other interchangeable numbers. It is guaranteed to fit the following models and configurations:
- TERRAZA 06-07 Transmission; (LH strut tower)
- UPLANDER 06-09 Transmission; (LH strut tower)
- MONTANA 06-09 Transmission; (LH strut tower)
- RENDEZVOUS 06-07 Transmission; (air cleaner box)
- And many other GM vehicles from 2006-2014. Please verify your part number before ordering.
Frequently Asked Questions
Do I need to have this module programmed by a dealership?
No. This module arrives 100% plug-and-play, pre-programmed to your vehicle’s VIN. You can install it yourself and skip the expensive trip to the dealer.
Where is the TCM located on my 2006 Terraza?
You’ll find the Transmission Control Module in the engine compartment, mounted on the driver’s side (LH) strut tower.
Will this part fix check engine light codes like P0700?
Yes, if the TCM itself is the source of the fault, this replacement module is the correct fix for P0700 and related transmission codes. It resolves the internal electronic failure causing the code.
What tools are required for installation?
Installation typically only requires basic hand tools, such as a socket set to unbolt the module. A scan tool is recommended to clear codes after installation, but is not always necessary.
Is there a core charge for my old part?
No, there is no core charge. You can keep or recycle your old part without the hassle of returning it.