Is Your Buick Rendezvous Shifting Erratically or Stuck in Gear?
If you’re dealing with the frustration of a transmission that won’t shift correctly, bangs into gear, or has put your 2006-2007 Buick Rendezvous into a failsafe “limp mode,” you’re not alone. Over my 20+ years as a diagnostician, I’ve seen countless GM vehicles exhibit these exact symptoms, and the culprit is almost always a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, and when it starts to fail, it can make your reliable SUV feel unpredictable and unsafe to drive.
From the Shop Floor: A Real-World Scenario
“Just last month, a customer brought in their 2006 Rendezvous. The check engine light was on, it was shifting hard from 1st to 2nd, and occasionally it wouldn’t shift out of 3rd gear at all. They had already replaced a shift solenoid with no change. After a quick scan, we saw the tell-tale P0700 code (Transmission Control System Malfunction). We knew right away the issue was likely the TCM itself. A faulty module can send incorrect signals, making you think it’s a mechanical part when it’s really the computer. Replacing the TCM with a pre-programmed unit like this one had them back on the road with smooth shifting in under an hour.”
The Permanent Fix: A VIN-Programmed Replacement TCM
Forget expensive diagnostic fees and programming charges at the dealership. This T42 Transmission Control Module is the definitive solution for your vehicle. We take the hassle out of the repair by pre-programming the module to your Rendezvous’s specific Vehicle Identification Number (VIN) before it ships. This ensures it communicates perfectly with your vehicle’s Engine Control Module (ECM) and other systems right out of the box. It arrives ready for a straightforward, plug-and-play installation.
Common Symptoms of a Failing 2006-2007 Rendezvous Transmission Control Module:
- โ Harsh, delayed, or unpredictable gear shifts.
- โ Transmission warning light or Check Engine Light is illuminated.
- โ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- โ Vehicle is stuck in one gear (limp mode), often 2nd or 3rd.
- โ Complete loss of communication with the transmission.
- โ Poor fuel economy and a feeling of lost power.
Plug-and-Play Installation: No Dealer Visit Required
This is a repair many of our customers confidently perform themselves. For the 2006-2007 Buick Rendezvous, the TCM is conveniently located under the air cleaner box, making it accessible in your own garage.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the onboard systems.
- Locate the Module: Remove the engine air cleaner assembly to access the TCM mounted below it.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the locking tabs to avoid damage. Then, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place, reconnect the electrical harnesses securely, and reinstall the air cleaner box.
- Final Steps: Reconnect the battery terminal. While the module is programmed, it’s always a good practice to use a basic OBD2 scan tool to clear any stored fault codes after the installation is complete.
Guaranteed Compatibility and Reliability
This module is built to meet or exceed original equipment standards for a long service life. It is a direct replacement for part number 24235753 and is also interchangeable with a wide range of other GM service numbers, including 24242391, 24234503, and 24252114. We stand behind our programming and product quality with a one-year warranty, giving you peace of mind with every purchase.