Is Your Buick Rendezvous Shifting Erratically?
If you’re experiencing sudden, harsh shifts, a transmission that seems to have a mind of its own, or a check engine light that points to transmission trouble, you’re not alone. Over my 20 years in the shop, I’ve seen countless GM vehicles, including the Buick Rendezvous, come in with these exact issues. More often than not, the culprit is a failing Transmission Control Module (TCM). This module is the brain of your automatic transmission, and when it starts to fail, it can make your daily drive frustrating and unreliable.
Expert Pro Tip: A Common Misdiagnosis
A customer’s 2007 Rendezvous came in last week stuck in 3rd gear (limp mode) with a P0752 code for Shift Solenoid ‘A’ Stuck On. The previous shop wanted to replace the solenoid, an expensive internal transmission repair. However, after seeing this pattern hundreds of times, I checked the TCM connectors first. A quick visual inspection revealed no corrosion, but a scan tool showed erratic data from the module itself. We swapped in a programmed TCM, and the problem was solved instantly. Always consider the TCM as a primary suspect for solenoid codes, as it can save you hundreds in unnecessary labor.
Symptoms of a Failing 2006-2007 Rendezvous Transmission Control Module
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:
- โ Unpredictable or slamming gear changes.
- โ The vehicle gets stuck in a single gear, often called “limp mode.”
- โ Delayed engagement when shifting from Park to Drive or Reverse.
- โ Active Check Engine Light or Transmission Warning Light on the dash.
- โ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- โ A noticeable drop in fuel economy due to inefficient shifting.
The Direct-Fit Solution: A VIN-Programmed T42 TCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The single biggest advantage of our T42 TCM is the pre-programming service. We flash the module with your vehicle’s specific VIN and the latest GM software updates before it even ships. This eliminates the need for an expensive trip to the dealership for programming, making the repair faster and more affordable.
- โ Plug-and-Play Installation: Because it’s programmed to your VIN, it works right out of the box.
- โ Restored Performance: Regain the smooth, decisive shifting your Rendezvous had when it was new.
- โ OEM-Standard Quality: Built to meet or exceed original equipment specifications for long-lasting reliability.
- โ No Core Charge: Keep your old part. No need to worry about returns or extra fees.
Plug-and-Play Installation: No Dealer Visit Required
For the 2006-2007 Buick Rendezvous, the installation is straightforward. You can have this done in your driveway in under 30 minutes with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the TCM: On your Rendezvous, the TCM is conveniently located right under the air cleaner box in the engine compartment.
- Remove the Old Module: Unplug the electrical connectors (press the release tabs firmly) and unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a click.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s always a good practice to use a basic scan tool to clear any stored transmission codes to ensure a clean slate for the new part.
This module, part number 24235340, is also a direct replacement for a wide range of other service numbers, including: 24252114, 24234503, 24230461, 24234274, 24235754, 24238856, and more. Restore your vehicle’s transmission performance and drive with confidence. Order today!