Is Your Buick Rendezvous Shifting Erratically or Stuck in Gear?
As a technician with over two decades of experience, I’ve seen countless GM vehicles come into the shop with frustrating transmission problems. A common scenario involves a 2006 or 2007 Buick Rendezvous that suddenly starts shifting harshly, refuses to go into gear, or gets stuck in “limp mode.” Owners often fear the worstโa costly transmission rebuild. However, in many of these cases, the actual culprit isn’t the transmission itself, but its electronic brain: the Transmission Control Module (TCM).
This T42 TCM, part number 24235732, is the direct solution to these widespread issues. It’s not just a replacement part; it’s a complete fix that arrives pre-programmed to your vehicle’s specific VIN. This means it communicates flawlessly with your Rendezvous’s engine computer and other systems right out of the box, restoring the smooth, predictable shifting you expect.
Expert Pro Tip: Check for Corrosion First
Before you replace the TCM on your Rendezvous, take a close look at the wiring harness connectors that plug into the module. Since it’s located under the air cleaner box, it can be susceptible to moisture and debris. I’ve seen cases where cleaning corrosion from the connector pins with a small brush and contact cleaner was all that was needed to solve intermittent communication errors. Itโs a 5-minute check that could save you a diagnosis headache.
Symptoms of a Failing 2006-2007 Rendezvous Transmission Module
If you’re experiencing any of the following, a faulty TCM is the likely cause. In my shop, I’ve diagnosed hundreds of T42 module failures that present with these exact signs:
- โ Harsh, slamming shifts or delayed gear engagement.
- โ The vehicle is stuck in a single gear (often 2nd or 3rd) and won’t upshift or downshift.
- โ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- โ Diagnostic trouble codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction) or various solenoid-related codes (P0750, P0751, etc.).
- โ Poor acceleration and a noticeable drop in fuel economy.
- โ Complete loss of communication with the TCM, leading to a no-start or no-shift condition.
Key Features & Benefits
- โ 100% Plug-and-Play: We program the module to your Rendezvous’s VIN before shipping. This critical step ensures it works immediately upon installation, saving you a trip to the dealership and their expensive programming fees.
- โ Restores Performance: Precisely controls shift solenoids and torque converter lockup, eliminating harsh shifts and restoring original drivability.
- โ OEM-Standard Quality: Built to meet or exceed original equipment specifications for reliability and long service life, backed by a one-year warranty.
- โ Broad Interchangeability: This module is a direct replacement for multiple part numbers, including 24252114, 24234503, 24230461, 24235753, and 24240449.
Easy Installation for Your Rendezvous
Replacing the TCM on your 2006-2007 Rendezvous is a straightforward job that most DIY mechanics can complete in under 30 minutes with basic hand tools. No complex procedures are required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On the Buick Rendezvous, the TCM is conveniently located right under the air cleaner box in the engine compartment.
- Remove the Air Box: Unclip and remove the air cleaner assembly to gain clear access to the TCM.
- Swap the Modules: Carefully unplug the electrical connectors from the old module. Unbolt it from its mounting bracket, then install the new module in its place.
- Reconnect Everything: Securely plug the wiring harnesses into your new TCM, reinstall the air cleaner box, and reconnect the battery terminal.
- Final Step: Start the vehicle. The new programming will take effect immediately. We recommend using a basic scan tool to clear any old fault codes stored in other modules.
Don’t let a faulty TCM keep your Buick Rendezvous off the road. Order this pre-programmed module today and get your vehicle shifting smoothly again with a reliable, hassle-free solution.