End Frustrating Shifting Problems in Your Buick Rendezvous
If your 2006-2007 Buick Rendezvous is suffering from harsh shifting, getting stuck in gear, or throwing transmission codes, you’re not just dealing with an annoyance—you’re dealing with a safety and reliability issue. As a technician with over two decades of experience, I’ve seen countless GM vehicles sidelined by a faulty Transmission Control Module (TCM). The TCM is the brain of your automatic transmission, and when it fails, it can make your daily drive unpredictable. This replacement T42 TCM, part number 24243901, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play fix.
From the Diagnostic Bay: The Rendezvous Stuck in Limp Mode
A customer brought in their 2007 Rendezvous, complaining it felt dangerously sluggish and the check engine light was on. It was stuck in what we call ‘limp mode’—third gear only. Pulling out into traffic was a nerve-wracking experience for them. The scanner showed a generic P0700 code, which just means ‘Transmission Control System Malfunction.’ This code can send you chasing ghosts, from solenoids to wiring. But experience pointed me to the TCM, a common failure point. We installed one of our VIN-programmed modules, and in less than an hour, the vehicle was shifting perfectly, the code was gone, and the customer had their safe, reliable crossover back. This part prevents that diagnostic guesswork.
Is Your Rendezvous Exhibiting These Transmission Problems?
A failing TCM doesn’t heal itself; it only gets worse. Ignoring these signs can lead to more significant transmission damage. Check if your vehicle is showing any of these classic symptoms of a bad 2006-2007 Rendezvous TCM.
- ✔ Unpredictable, harsh, or delayed gear shifts.
- ✔ Vehicle is stuck in one gear (limp mode) and won’t shift up or down.
- ✔ Check Engine Light is illuminated with Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, P0758, or other solenoid-related faults.
- ✔ A noticeable drop in fuel economy.
- ✔ The transmission seems to slip out of gear unexpectedly.
- ✔ Complete loss of communication with the module, preventing diagnostics.
DIY Guide: Installing Your Rendezvous TCM in Under 30 Minutes
One of the best features of this module is that it’s designed for straightforward installation, saving you hundreds in labor costs. For the 2006-2007 Buick Rendezvous, the TCM is conveniently located right under the air cleaner box, making it easily accessible.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: Open the hood and find the air cleaner assembly. The TCM is mounted directly underneath it. You will need to remove the air cleaner box to gain access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, VIN-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into place.
- Reassemble and Reconnect: Reinstall the air cleaner box. Reconnect the negative battery terminal.
- Final Steps: Start the vehicle. While our programming resolves most codes, it’s good practice to use a basic OBD2 scanner to clear any stored DTCs from the vehicle’s memory. Test drive to confirm smooth shifting.
Confirmed Vehicle Compatibility
This T42 Transmission Control Module is a direct-fit replacement for your 2006-2007 Rendezvous TCM and is also compatible with a wide range of other General Motors vehicles. We program it specifically for the VIN you provide at checkout.
Primary Fitment:
- Buick Rendezvous: 2006-2007 (Located at air cleaner box)
Also fits select models of:
- Buick: Allure, LaCrosse, Lucerne, Rainier
- Cadillac: DTS
- Chevrolet: Avalanche, Cobalt, Colorado, Express, HHR, Impala, Malibu, Monte Carlo, Silverado, SSR, Suburban, Tahoe, Trailblazer
- GMC: Canyon, Envoy, Savana, Sierra, Yukon
- Hummer: H3
- Pontiac: G5, G6, Grand Prix, Pursuit, Torrent
- Saab: 9-7X
- Saturn: Aura, Ion, Vue
This module replaces part numbers: 24243901, 24252114, 24234503, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, and more.
Frequently Asked Questions
Do I need to take my car to the dealer after installing this?
No. This is the biggest benefit of our service. We pre-program the module to your vehicle’s VIN before shipping. This means it is ready for installation right out of the box, with no additional programming or dealer visits required.
What is a ‘core charge’ and do you require one?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item, so you can keep your old module without any hassle or extra cost.
Will this fix a P0700 trouble code?
Yes, in many cases. The P0700 code is a general fault code indicating the TCM has detected a problem. If the TCM itself is the source of the failure, replacing it with our programmed unit will resolve the code and the underlying issue.
What tools do I need for the installation on my Rendezvous?
For a Buick Rendezvous, the installation is very straightforward. You will typically only need basic hand tools, such as a socket set and a screwdriver, to remove the air cleaner box and unbolt the module.