Restore Your Buick’s Smooth Ride
If your 2006-2007 Buick Rendezvous is suffering from harsh shifting, getting stuck in gear, or throwing transmission codes, you’re not just dealing with an annoyance—you’re facing a critical failure that compromises your vehicle’s reliability. As a technician with over two decades of experience, I’ve seen countless GM vehicles sidelined by a faulty Transmission Control Module (TCM). The T42 module, specifically, is the electronic brain of your automatic transmission, and when it fails, the symptoms can range from poor fuel economy to a complete inability to shift. This isn’t a problem you can ignore.
This is a direct-replacement, OEM-quality T42 TCM, part number 24235732, that arrives at your door fully programmed to your Rendezvous’s unique Vehicle Identification Number (VIN). This crucial step means you can skip the expensive trip to the dealership for programming. You get a part that is ready for a true plug-and-play installation, designed to restore the precise, smooth shifting you expect from your Buick. It’s the definitive solution for getting your vehicle back on the road safely and affordably.
From the Diagnostic Bay
I remember a 2007 Rendezvous that came into my shop stuck in limp mode—third gear only. The owner was worried about a complete transmission rebuild. After connecting my scan tool, I saw the classic P0700 (Transmission Control System Malfunction) and a handful of solenoid circuit codes. Instead of jumping to the worst-case scenario, I checked the TCM. Sure enough, the module had failed internally, a common issue due to heat cycles and electronic wear. We replaced it with a VIN-programmed unit like this one. In less than an hour, all codes were cleared, and the car was shifting perfectly. It’s often the brain, not the brawn, of the transmission that fails.
Is Your Rendezvous Showing These Telltale Signs?
- ✔ Abrupt, harsh, or jerky gear shifts.
- ✔ The vehicle is stuck in a single gear (limp mode).
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ Check Engine Light is on with codes like P0700, P0750, P0753, or other transmission-related DTCs.
- ✔ The transmission seems to slip between gears.
- ✔ A noticeable drop in fuel efficiency.
- ✔ Complete failure to shift up or down.
DIY Installation: A 30-Minute Fix
Replacing the 2006-2007 Rendezvous TCM is a straightforward job that most DIYers can handle with basic tools. The module is conveniently located for easy 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 TCM: On the 2006-2007 Buick Rendezvous, the transmission control module is located right under the air cleaner box in the engine compartment.
- 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 and remove it.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it run for a few minutes. While our programming handles the heavy lifting, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes from the ECU.
Confirmed Vehicle Compatibility
This T42 TCM is a guaranteed fit for the 2006-2007 Buick Rendezvous. It is also a direct replacement for a wide range of other General Motors vehicles and interchanges with part numbers including 24252114, 24234503, 24230461, 24235753, and 24240449. Please verify your part number or contact us with your VIN to ensure perfect fitment.
Frequently Asked Questions
Why is VIN programming so important?
VIN programming loads your vehicle’s specific software, including shift points, sensor calibrations, and communication protocols. Without it, a new TCM won’t work correctly, leading to the same shifting problems or even worse. Our pre-programming makes this a plug-and-play part, saving you hundreds in dealership fees.
Do I need any special tools for this installation?
No special tools are required. A basic socket set to remove the air cleaner box and the module’s mounting bolts, along with a flathead screwdriver to help with connector tabs, is typically all you need.
Will this fix a P0700 check engine light code?
Yes, in most cases. A 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 permanently.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module or dispose of it without the hassle of shipping it back to us.
How can I be sure the TCM is the problem?
Common symptoms like erratic shifting, limp mode, and specific transmission codes strongly point to the TCM. If you’ve checked the transmission fluid level and condition and find no mechanical issues, the TCM is the most likely culprit. This is especially true for the issues seen in the 2006-2007 Rendezvous TCM.