Restore Smooth, Reliable Shifting to Your Buick Rendezvous
If you’re dealing with the frustration of a Buick Rendezvous that shifts harshly, gets stuck in gear, or has a persistent transmission warning light, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen how a failing Transmission Control Module (TCM) can mimic a catastrophic transmission failure, causing unnecessary stress and diagnostic headaches. This T42 TCM, part number 24243921, is the definitive solution, pre-programmed to your vehicle’s specific VIN to restore the crisp, predictable performance you expect.
Is Your Rendezvous Showing These Telltale Signs?
A faulty TCM sends out clear distress signals. If you’re experiencing any of the following, a replacement is likely the answer. Over the years, I’ve found that these symptoms almost always point to an electronic failure, not a mechanical one.
- ✔ Harsh, slamming shifts or erratic gear changes.
- ✔ The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on with codes like P0700 (Transmission Control System Malfunction), P0750, or other solenoid-related faults.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ A sudden drop in fuel economy or a transmission overheating warning.
A Technician’s Notebook: The Misleading Fault Code
I remember a 2007 Rendezvous that came into my shop. The owner was convinced the transmission was shot. It was stuck in third gear, and the scanner showed a generic P0700 code. Instead of immediately quoting a costly transmission rebuild, we checked the basics. The fluid was fine, but the TCM wasn’t communicating properly. We swapped in a VIN-programmed module, and in less than an hour, the vehicle was shifting perfectly. It’s a classic case where this simple, targeted repair saved the customer thousands and solved the root cause of the problem.
The Solution: A True Plug-and-Play 2006-2007 Rendezvous TCM
This isn’t just a replacement part; it’s a complete repair solution. The most critical feature is our VIN programming service. When you order, we flash the module with the latest GM software calibrated specifically for your Rendezvous. This eliminates the need for expensive dealership tools or programming fees, making it a straightforward job for a DIYer or any independent repair shop. It arrives at your door ready to install, directly addressing the electronic faults that cause poor drivability.
A Straightforward Guide to Installation
You don’t need a lift or specialized equipment for this job. For the 2006-2007 Buick Rendezvous, the TCM is conveniently located, making for a quick swap.
- Safety First: Always disconnect the negative terminal on your vehicle’s battery before starting any electronic work.
- Locate the Module: On your Rendezvous, the TCM is found inside the air cleaner box assembly in the engine compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the tab locations to avoid damage. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Mount the new module in place and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Final Steps: Reconnect the battery. While our programming handles the critical setup, it’s always good practice to use a basic scan tool to clear any stored fault codes from the vehicle’s memory.
Guaranteed Vehicle Compatibility
This T42 TCM is the correct fit for the following vehicles and configurations. Please verify your model and year to ensure a perfect match.
- RENDEZVOUS 06-07 Transmission; (air cleaner box)
- ALLURE 06-09 Transmission; (lower air cleaner housing)
- AVALANCHE 1500 07-08 Transmission; (next to battery)
- CANYON 08-12 Transmission; (RH rear engine compartment)
- COBALT 06-10 Transmission; (LH strut tower)
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- DTS 06-11 Transmission; (RH front engine compartment)
- ENVOY 06-09 Transmission; (LH engine compartment)
- EXPRESS & SAVANA VANS 06-14 Transmission; (RH engine compartment)
- G6 06-10 Transmission; (LH strut tower)
- GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
- HHR 06-11 Transmission; (LH engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- IMPALA 06-11 Transmission; (lower air cleaner housing)
- LACROSSE 06-09 Transmission; (lower air cleaner housing)
- LUCERNE 06-11 Transmission; (LH engine compartment)
- MALIBU 06-10 Transmission; (LH frame rail)
- MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
- SIERRA & SILVERADO (1500/2500) 07-13 Transmission; (next to battery)
- TAHOE & YUKON 07-09 Transmission; (next to battery)
- TRAILBLAZER 06-09 Transmission; (LH engine compartment)
- And more GM models.
Frequently Asked Questions
What does ‘VIN-programmed’ actually mean for me?
It means the module arrives ready for installation with no extra steps. We load the specific software for your Buick Rendezvous onto the module before shipping, so it communicates correctly with your vehicle’s engine and other systems right out of the box.
Do I need to take my car to a dealer after installing this part?
No. Our VIN programming service completely eliminates the need for a trip to the dealership for software flashing, saving you time and significant expense.
Where is the TCM on a 2007 Buick Rendezvous?
The Transmission Control Module on the 2006-2007 Rendezvous is located inside the air cleaner box assembly in the engine bay, making it one of the more accessible TCM locations.
Will this part fix a P0700 diagnostic trouble code?
Yes, in many cases. The P0700 code is a general fault indicating the TCM has detected a problem. If the TCM itself is the source of the failure, replacing it with this pre-programmed unit will resolve the code and the underlying issue.
Is there a core charge? Do I have to send my old part back?
There is absolutely no core charge on this module. You can keep your old part or recycle it locally without the hassle of return shipping.