If your 2006-2007 Buick Rendezvous is suffering from unpredictable shifting, getting stuck in gear, or has the check engine light glaring at you, a failing Transmission Control Module (TCM) is the likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty TCM can make a reliable vehicle feel unsafe and frustrating to drive. This isn’t just an inconvenience; it’s a core performance issue that affects drivability and fuel economy. This direct-replacement T42 TCM, part number 24235340, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play fix.
Case Study: The Limp-Mode Rendezvous
A customer brought in their ’07 Rendezvous, explaining it would suddenly refuse to shift past 2nd gear—a classic limp mode symptom. They were quoted a fortune at the dealership for diagnostics and a new module. A quick scan on my end showed a P0700 (Transmission Control System Malfunction) code and erratic solenoid data. The original TCM was failing internally. Instead of a complex and costly dealer repair, we installed one of our VIN-programmed modules. In under an hour, the codes were cleared, the vehicle was shifting smoothly through all gears, and the customer drove away confident, having saved hundreds of dollars. This is the exact fix we provide.
Common Signs of a Failing 2006-2007 Rendezvous TCM
A bad TCM doesn’t heal itself; it only gets worse. If you’re noticing any of these issues, it’s time for a replacement. Ignoring them can lead to more significant transmission damage down the road.
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ Vehicle is stuck in a single gear (limp mode) and won’t upshift or downshift.
- ✔ Check Engine Light is on with transmission-related Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, or other solenoid circuit faults.
- ✔ A noticeable drop in fuel efficiency.
- ✔ The transmission seems to slip out of gear unexpectedly.
- ✔ Complete loss of communication with the module, preventing the vehicle from starting or shifting out of Park.
A Straightforward Guide to Installation
For the 2006-2007 Buick Rendezvous, this is a repair most DIYers can handle with basic tools. The key is our VIN programming, which eliminates the need for expensive scan tools or a trip to the dealership. It’s ready to install right out of the box.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electronic component replacement.
- Locate the Module: On the Rendezvous, the TCM is conveniently located inside the air cleaner box in the engine compartment.
- Remove the Old Unit: Unplug the electrical connectors by releasing their locking tabs. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Mount the new module securely, reconnect the electrical harnesses, and reassemble the air cleaner box.
- Final Steps: Reconnect the battery. While the module is plug-and-play, it’s good practice to use a basic code reader to clear any stored fault codes from the ECU. Start the vehicle and test drive to confirm smooth shifting.
Verified Vehicle Compatibility
This T42 Transmission Control Module is a guaranteed fit for the following vehicle:
- 2006-2007 Buick Rendezvous (Located inside the air cleaner box)
This module is also compatible with a wide range of other 2006-2014 General Motors vehicles equipped with 4-speed automatic transmissions (like the 4L60E, 4L65E, and 4L70E). It is a direct replacement for part numbers 24235340, 24242391, 24234503, 24252114, and others listed in the interchange data.
Frequently Asked Questions
What exactly is VIN programming and why does it matter?
VIN programming means we load your vehicle’s unique 17-digit Vehicle Identification Number and the latest GM software onto the module before we ship it. This ensures the TCM communicates perfectly with your Rendezvous’s engine computer and other systems, just like the original part. It eliminates the need for a dealership to perform a costly and time-consuming programming procedure.
Do I need to return my old TCM (core charge)?
No, there is absolutely no core charge. You can keep your old part or dispose of it yourself, saving you the hassle and cost of return shipping.
Is this a difficult part for a DIYer to install?
Not at all. For the Rendezvous, the location in the air cleaner box is very accessible. With basic hand tools and our installation guide, most people can complete the job in 30-45 minutes. The plug-and-play nature of the part makes it one of the easier electronic fixes.
Will this part fix my specific transmission problem?
If your vehicle is exhibiting the symptoms listed above (erratic shifting, limp mode, specific TCM-related codes), this module is the most common and effective solution. It is designed to resolve these exact electronic failures within the transmission control system.