Restore Smooth Shifting to Your 2006-2007 Buick Rendezvous
If you’re experiencing frustrating and unpredictable transmission behavior in your Buick Rendezvous, you’re not alone. As a technician with over two decades of experience, I’ve seen countless GM vehicles sidelined by a failing Transmission Control Module (TCM). Symptoms like harsh gear changes, getting stuck in limp mode, or an illuminated check engine light can make your reliable crossover feel unsafe and unpredictable. This isn’t just an annoyance—it’s a critical failure in the component that acts as the brain for your automatic transmission.
This T42 TCM, corresponding to part number 24235732, is the definitive solution. It arrives expertly programmed to your vehicle’s specific VIN, eliminating the need for expensive and time-consuming dealership visits. By managing everything from shift solenoid commands to torque converter lockup, this module restores the crisp, reliable performance your Rendezvous was designed to deliver.
From the Diagnostic Bay: A Common Rendezvous Case
A customer brought in their ’07 Rendezvous, complaining it wouldn’t shift past 2nd gear and the check engine light was on. They were worried about a complete transmission failure, which would be a multi-thousand dollar repair. A quick scan revealed a P0700 (Transmission Control System Malfunction) and a few solenoid-specific codes. Instead of jumping to a rebuild, we checked the TCM. In my shop, I’ve seen hundreds of these T42 modules fail due to heat cycles and internal circuit board issues. We installed a VIN-programmed module, and in less than an hour, the vehicle was shifting perfectly, all codes were cleared, and the customer saved a fortune. This is often the simple fix that’s needed.
Is Your Rendezvous Exhibiting These Telltale Signs?
A faulty TCM can manifest in several ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement:
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ Vehicle is stuck in a single gear (often called “limp mode”).
- ✔ The check engine light or transmission warning light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, P0753, P0758, or other solenoid-related faults.
- ✔ Poor acceleration and a noticeable drop in fuel economy.
- ✔ Complete loss of communication with the transmission, leading to a no-shift condition.
DIY-Friendly Installation Guide
For the 2006-2007 Buick Rendezvous, this is a straightforward job that most DIYers can complete in their driveway. The TCM 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 Module: On the Rendezvous, the TCM is typically found mounted to the air cleaner box in the engine compartment.
- Disconnect and Remove: Carefully unclip the electrical connectors from the old module. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- 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 allow it to run for a few minutes. While our programming clears most faults, it’s good practice to use a basic OBD-II scanner to clear any remaining stored codes.
Verified Vehicle Compatibility
While this part is a direct-fit solution for the 2006-2007 Buick Rendezvous, this versatile T42 module is also compatible with a wide range of other General Motors vehicles. Please verify your part number and model below.
- ALLURE 06-09 (lower air cleaner housing)
- AURA 07-09 (LH frame rail front)
- AVALANCHE 1500 07-08 (next to battery)
- CANYON 08-12 (RH rear engine compartment)
- COBALT 06-10 (LH strut tower)
- COLORADO 08-12 (RH rear engine compartment)
- DTS 06-11 (RH front engine compartment)
- ENVOY 06-09 (LH engine compartment)
- EXPRESS VANS 06-14 (RH engine compartment)
- G5 07-10 (LH strut tower)
- G6 06-10 (LH strut tower)
- GRAND PRIX 06-08 (lower air cleaner housing)
- HHR 06-11 (LH engine compartment)
- HUMMER H3 08-10 (RH rear engine compartment)
- IMPALA 06-11 (lower air cleaner housing)
- ION 06-07 (behind LH strut tower)
- LACROSSE 06-09 (lower air cleaner housing)
- LUCERNE 06-11 (LH engine compartment)
- MALIBU 06-10 (LH frame rail)
- MONTE CARLO 06-07 (lower air cleaner housing)
- MONTANA 06-09 (LH strut tower)
- PURSUIT 06 (LH strut tower)
- RAINIER 06-07
- RENDEZVOUS 06-07 (air cleaner box)
- SAAB 9-7X 06-09 (LH engine compartment)
- SAVANA VANS 06-14 (RH engine compartment)
- SIERRA PICKUPS 07-13 (next to battery)
- SILVERADO PICKUPS 07-13 (next to battery)
- SSR 05-06 (front LH frame)
- SUBURBAN 1500 07-08 (next to battery)
- TAHOE 07-09 (next to battery)
- TERRAZA 06-07 (LH strut tower)
- TRAILBLAZER 06-09 (LH engine compartment)
- UPLANDER 06-09 (LH strut tower)
- VUE 07-10 (engine compartment)
- YUKON & YUKON XL 07-09 (next to battery)
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready for plug-and-play installation, saving you hundreds in dealership fees.
Is this a new or used part?
This is a high-quality, OEM-spec replacement part, inspected and programmed to ensure reliability and performance. It is backed by our one-year warranty.
What tools do I need for the installation?
For a Buick Rendezvous, you will typically only need a basic socket set to remove the bolts holding the module and possibly a flathead screwdriver to help with the connector clips. No special tools are required.
Will this fix a P0700 code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a failing TCM is a very common cause, this code can also be triggered by other transmission issues. However, if you also have solenoid or communication codes, replacing the TCM is the most likely solution.
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.