Restore Smooth Shifting to Your Buick Rendezvous
If your 2006-2007 Buick Rendezvous is suffering from jarring shifts, getting stuck in gear, or throwing transmission codes, the problem often points directly to a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen how a faulty TCM—the transmission’s brain—can turn a reliable vehicle into a source of daily frustration. This T42 TCM, part number 24235754, is the definitive solution, arriving at your door fully programmed to your vehicle’s VIN for a true plug-and-play repair.
Forget about expensive dealership visits and the hassle of post-installation programming. We handle the complex part for you. By programming the module with the latest GM software updates specific to your Rendezvous, we ensure it communicates flawlessly with your vehicle’s engine computer and transmission components right out of the box. This restores the precise, smooth shifting and reliable performance you expect, resolving common issues and getting you back on the road with confidence.
Case Study: A Tricky Diagnosis
A customer brought in their ’07 Rendezvous with a complaint that stumped a couple of other shops: intermittent, violent downshifts when coming to a stop, but no consistent trouble codes. After a test drive, I suspected the TCM was failing under specific thermal conditions. We swapped in one of our pre-programmed T42 modules. The problem vanished instantly. The original module’s internal logic was breaking down when hot, a classic failure I’ve diagnosed hundreds of times. This simple replacement saved the customer from a potential transmission rebuild and got their family vehicle running safely again.
Is Your Rendezvous Exhibiting These Telltale Signs?
A failing TCM doesn’t heal itself; it only gets worse. If you notice any of the following symptoms, it’s a strong indicator that your 2006-2007 Rendezvous TCM needs replacement.
- âś” Harsh, banging shifts or delayed gear engagement.
- âś” Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- âś” The Check Engine Light or a dedicated transmission warning light is on.
- âś” Diagnostic Trouble Codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction) or various solenoid codes (P0750-P0774).
- âś” Inability to upshift or downshift properly, leading to poor acceleration and fuel economy.
- âś” Complete loss of communication with the scan tool or total transmission failure.
Your Straightforward TCM Installation Guide
For the 2006-2007 Buick Rendezvous, this is a job most DIYers can handle in their own driveway in under an hour. The TCM is conveniently located for 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 Module: On your Rendezvous, you will find the TCM mounted on or inside the air cleaner box assembly in the engine bay.
- Disconnect and Remove: Carefully unclip the wiring harness connectors. Be gentle with the plastic tabs. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Mount your new, pre-programmed module in place of the old one and securely fasten the bolts. Reconnect the wiring harnesses, ensuring they click into place.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. While our programming resolves most issues, it’s good practice to use a basic OBD2 scanner to clear any stored historical codes.
Verified Vehicle Compatibility List
This T42 module is a direct replacement for part number 24235754 and is interchangeable with many other GM service numbers. While this page is focused on the Rendezvous, this module also fits a wide range of other GM vehicles. Please confirm your specific model below.
This part fits the following:
- Buick Rendezvous: 2006-2007 (Located at the air cleaner box)
- Buick Allure / LaCrosse: 2006-2009 (Lower air cleaner housing)
- Buick Lucerne: 2006-2011 (LH engine compartment)
- Chevrolet Cobalt / HHR / Impala / Monte Carlo: 2006-2011
- Chevrolet Silverado / Tahoe / Suburban / Avalanche: 2007-2013
- GMC Sierra / Yukon: 2007-2013
- Pontiac G6 / Grand Prix: 2006-2010
- …and many other GM models listed in the original fitment data.
Do I need to take my car to the dealer after installation?
Do I need to take my car to the dealer after installation?
No. This Transmission Control Module comes fully programmed to your vehicle’s specific VIN. It is a plug-and-play solution that requires no additional dealership programming, saving you time and money.
Is this a difficult part to install myself?
For a 2006-2007 Rendezvous, the installation is very straightforward. The TCM is located with the air cleaner box and is accessible with basic hand tools. Most DIY mechanics can complete the job in under an hour.
How do I provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure perfect programming.
What if my part number is slightly different?
This T42 module replaces numerous GM part numbers, including 24252114, 24234503, 24242391, and others. As long as your vehicle is on the compatibility list, this module will function as a direct replacement, programmed with the correct software for your application.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without the hassle of returning it, making the repair process simpler and faster.