Restore Smooth Shifting to Your Buick Rendezvous
If your 2006-2007 Buick Rendezvous is suffering from erratic shifting, getting stuck in gear, or has the dreaded check engine light on with transmission codes, you’ve likely pinpointed the culprit: a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen how a faulty TCM can make an otherwise reliable vehicle feel unpredictable and unsafe. This T42 TCM, part number 24240449, 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 ’06 Rendezvous with a classic complaint: intermittent harsh shifting and a P0700 code that would come and go. They’d already replaced a shift solenoid with no luck. After connecting my scan tool, I saw erratic data from the TCM and confirmed it was failing internally, likely due to heat cycles and vibration. Instead of a costly dealership visit for diagnostics and programming, we installed one of our VIN-programmed modules. The entire job took less than an hour, the codes were cleared, and the vehicle shifted perfectly on the test drive. This is the exact fix that saves time, money, and frustration.
The Reliable Fix for Your 2006-2007 Rendezvous TCM
This module is the brain of your automatic transmission, controlling everything from gear changes to torque converter lockup. When it fails, performance suffers dramatically. Our module restores the precise, factory-intended operation of your transmission, ensuring longevity and driver confidence. Because it’s programmed with the latest GM software updates for your VIN, it resolves many common software-related diagnostic trouble codes (DTCs) right out of the box.
Is Your Rendezvous Exhibiting These Issues?
- ✔ Harsh, jerky, or delayed gear shifts.
- ✔ Vehicle is stuck in ‘limp mode’ (often 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Stored DTCs such as P0700 (Transmission Control System Malfunction) or P0750-series solenoid codes.
- ✔ Inability to upshift or downshift, leading to poor acceleration.
- ✔ Decreased fuel economy and potential transmission overheating.
DIY Installation: A 30-Minute Fix
Replacing the TCM on your Rendezvous is a straightforward job perfect for a DIYer. No specialized tools are needed, and the process is simple. For the 2006-2007 Rendezvous, the TCM is located under the air cleaner box, making it easily accessible.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and reset the system.
- Access the Module: Remove the air cleaner housing to expose the Transmission Control Module.
- 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 harnesses.
- Final Steps: Reinstall the air cleaner box and reconnect the battery terminal. While the system may reset, it’s best practice to use a basic OBD2 scanner to clear any lingering fault codes.
Verified Compatibility for Your Vehicle
This T42 TCM is guaranteed to be a direct-fit replacement for the following vehicle, and is also compatible with a wide range of other GM vehicles listed below:
- Buick Rendezvous: 2006-2007 (Located under the air cleaner box)
This part is also a compatible replacement for models including the Chevrolet Silverado, Tahoe, Impala; GMC Sierra, Yukon; Cadillac DTS; Pontiac G6, and many more from 2006-2014 requiring part number 24240449 or its interchanges.
Frequently Asked Questions
What does “VIN Programmed” mean for me?
This means the module arrives ready for installation. We flash it with your vehicle’s specific VIN and the latest GM software before shipping. This eliminates the need for an expensive trip to the dealership for programming, making it a true plug-and-play solution.
Do I need to return my old TCM?
No, there is no core charge for this part. You can keep, discard, or recycle your old module without any hassle or extra fees.
Will this fix a P0700 trouble code?
Yes, a faulty TCM is one of the most common causes of a P0700 code. This code is a general fault indicator from the TCM to the main engine computer (ECU). Replacing a failing TCM with our pre-programmed unit is the direct solution for this issue.
Is this part difficult to install myself?
For most individuals with basic mechanical skills, this is an easy installation. On the 2006-2007 Rendezvous, it’s located under the air cleaner box and typically takes less than 30 minutes to swap out with basic hand tools.
What if I have questions during installation?
We pride ourselves on expert support. If you have any questions, our team of experienced technicians is here to help guide you through the process.