Restore Peak Transmission Performance in Your Buick Rendezvous
Are you experiencing frustrating and unpredictable shifting issues with your 2006-2007 Buick Rendezvous? Symptoms like harsh gear changes, delayed engagement, or the vehicle getting stuck in ‘limp mode’ are often direct indicators of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, drivability suffers, fuel economy drops, and you may see a check engine light on your dash. This replacement GM T42 TCM, part number 24240400, is the definitive solution to restore your vehicle’s factory performance and reliability.
From the Diagnostic Bay
We had a 2007 Rendezvous come into the shop with classic transmission failure symptoms: banging into gear and a P0700 trouble code. The owner had already spent a significant amount of money replacing two shift solenoids based on a generic code reader’s suggestion, but the problem persisted. After a quick scan with our professional equipment, we saw communication errors pointing directly to the TCM. The internal logic had failed, sending erratic signals to perfectly good solenoids. We installed a VIN-programmed T42 module, cleared the codes, and the vehicle shifted like new. It’s a powerful reminder that diagnosing the root cause is key—often, the module itself is the culprit, not the mechanical parts it controls.
Common Symptoms of a Failing Rendezvous TCM
- ✔ Harsh, erratic, or delayed gear shifting.
- ✔ Vehicle is stuck in a single gear (limp mode) and will not upshift or downshift.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes are present.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission seems to slip out of gear or struggles to engage Drive or Reverse.
- ✔ Complete loss of communication with the transmission module during a diagnostic scan.
The Plug-and-Play Solution: VIN Programmed for Your Vehicle
Dealerships often require you to buy the part and then pay for hours of labor to program it to your vehicle. Our process eliminates that hassle and expense. We pre-program this module with your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that the unit is loaded with the latest GM software updates and is perfectly calibrated for your Rendezvous’s specific transmission and engine combination. The result is a simple, plug-and-play installation. There is no need for additional trips to a mechanic or dealership for programming—just install the part, and you’re ready to drive.
Why Choose Our 2006-2007 Rendezvous Transmission Module?
This isn’t just a replacement part; it’s a comprehensive repair solution. Built to strict OEM specifications, this module ensures dependable, long-lasting performance. By managing shift points, torque converter lockup, and fluid pressure with renewed accuracy, it not only fixes your immediate problems but also helps protect your transmission from the premature wear and tear that a faulty module can cause. Each unit is backed by our one-year warranty for your peace of mind. This module is a direct interchange for a wide range of GM part numbers, including 24252114, 24234503, 24230461, 24240400, and more, making it a versatile solution for many GM vehicles.
Easy Installation
For the 2006-2007 Buick Rendezvous, the TCM is typically located under the air cleaner box in the engine compartment. The installation can be completed in under 30 minutes with basic hand tools. Simply disconnect the battery, remove the air cleaner assembly for access, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Reconnect everything, and you’re done. We recommend using a scan tool to clear any stored DTCs after installation is complete. Best of all, there is no core charge, so you don’t have to worry about the cost or hassle of sending your old part back.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This Transmission Control Module comes pre-programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you time and money on dealership programming fees.
Where is the TCM located on my 2006-2007 Buick Rendezvous?
On the 2006-2007 Rendezvous, the TCM is typically found in the engine compartment, located under the air cleaner box assembly. You will need to remove the airbox to gain access to the module.
Will this fix a P0700 diagnostic trouble code?
A P0700 code is a general transmission fault code, indicating that the TCM has detected a problem. While a faulty TCM itself is a very common cause, this code can also be triggered by other transmission issues. Replacing a known-bad TCM is often the correct fix for a P0700 code.
Is there a core charge for this part?
No, we do not require a core charge. You can keep your old part without any additional fees or the need to return it.
What is the warranty on this transmission module?
This part comes with a one-year replacement warranty, ensuring it is free from defects in materials and workmanship under normal use and service.