Restore Your Buick’s Smooth Ride
If your 2006-2007 Buick Rendezvous is suffering from jarring shifts, getting stuck in gear, or throwing transmission codes, the culprit is often a failing Transmission Control Module (TCM). As a seasoned technician, I’ve seen firsthand how a faulty TCM can make a reliable vehicle feel unpredictable and unsafe. This isn’t just an annoyance; it’s a critical failure that impacts performance, fuel economy, and your peace of mind. This replacement T42 TCM, part number 24239926, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Case Study: A Tricky Diagnosis
A customer brought in their ’07 Rendezvous with a complaint of intermittent, hard 1-2 shifts and occasional failure to shift into overdrive, but no consistent check engine light. Diagnostics were tricky; the codes would appear and clear on their own. After checking the fluid and solenoids, which were fine, we focused on the TCM. Located under the air cleaner box, these modules are subjected to constant heat cycles. Over years, this thermal stress can cause internal solder joints to fail, leading to the exact intermittent electrical faults the customer described. Installing a VIN-programmed 2006-2007 Rendezvous TCM immediately resolved all shifting issues, restoring the vehicle’s factory performance without a costly trip to the dealership for programming.
Is Your Buick Rendezvous Showing These Signs?
A failing TCM will give you clear warnings. If you’re experiencing any of the following, it’s time for a replacement. Ignoring these symptoms can lead to more severe transmission damage.
- ✔ Harsh, erratic, or delayed gear shifts.
- ✔ Vehicle enters “limp mode,” often stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid errors), or other transmission-related faults.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission seems to slip between gears or fails to engage properly from a stop.
A Straightforward Guide to Installation
You don’t need to be a professional mechanic to install this part. With basic hand tools, you can have your 2006-2007 Rendezvous TCM replaced in under 30 minutes, right in your driveway.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: On your Rendezvous, the module is conveniently located under the air cleaner box. You will need to remove the air cleaner assembly to access it.
- 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 and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Final Steps: Reinstall the air cleaner assembly and reconnect the battery terminal. Use a standard OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the vehicle and take it for a test drive to confirm smooth shifting.
Verified Fitment for Your Vehicle
This module is a direct-fit replacement for the specified models. While it is compatible with a wide range of GM vehicles, this listing is guaranteed to fit the following configuration:
- ✔ Buick Rendezvous: 2006-2007 (Located under the air cleaner box)
This part is also an interchangeable replacement for several part numbers, including 24252114, 24234503, and 24239926. By ordering from us, you get a reliable part that works right out of the box, backed by our expertise and a one-year warranty.
Frequently Asked Questions
Do I need to program this module?
No. This is the biggest benefit of our service. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for immediate installation, saving you time and the high cost of dealership programming.
What tools are required for installation?
You’ll only need basic hand tools, such as a socket set and screwdrivers, to remove the air cleaner box and unbolt the old module. No specialized equipment is necessary.
Will this fix my P0700 transmission code?
A P0700 code indicates a general fault request from the TCM. If the TCM itself is the source of the problem, then replacing it with this new module will resolve the code and the underlying issue.
Is there a core charge?
No, we do not require a core charge. You can keep your old part, eliminating the hassle and expense of shipping it back.