Restore Your Buick’s Smooth, Reliable Performance
Is your 2006-2009 Buick Allure suffering from jerky shifts, delayed gear engagement, or a concerning check engine light? A faulty transmission control module (TCM) can disrupt your daily drive, turning a smooth ride into a source of constant stress. This VIN-Programmed T42 Transmission Control Module is the definitive solution to restore your vehicle’s crisp, reliable performance and give you back your confidence on the road. Specifically flashed to your vehicle’s unique VIN, it arrives ready for a true plug-and-play installation, eliminating the need for an expensive trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to be the direct-fit solution for these common problems:
- Harsh, erratic, or delayed gear shifting
- The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0755, or other solenoid-related codes are present
- Failure to upshift or downshift, leading to poor acceleration and fuel economy
- Complete loss of transmission communication or function
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module is pre-programmed to your vehicle’s specific VIN using the latest GM software updates. This critical step ensures perfect communication between the TCM and your car’s other systems, requiring no additional programming. Just install it and drive.
- ✔ Restores Flawless Shifting: By precisely managing shift points, torque converter lockup, and line pressure, this TCM eliminates harsh engagement and gear slipping, restoring the smooth, predictable operation you expect from your Buick.
- ✔ Broad GM Compatibility: While perfect for your 2006-2009 Buick Allure transmission control module, this T42 unit also fits a wide range of GM vehicles, including many Chevrolet, GMC, Pontiac, and Cadillac models. It is a direct replacement for service numbers 24252114, 24234503, 24230461, 24235732, and more.
- ✔ No Core Charge Required: Keep your old part without the hassle or expense of a core return. The price you see is the price you pay.
- ✔ Guaranteed Quality: Built to meet or exceed strict OEM standards for durability and performance. This unit is backed by our one-year replacement warranty.
A Technician’s Insight: The Power of Proper Programming
As a technician with over two decades of experience, I’ve seen countless drivers waste time and money on generic or improperly programmed modules. The T42 TCM is the brain of your 4L60E/4L65E transmission, and communication is key. Our VIN-specific programming ensures the module speaks the exact ‘language’ of your Buick Allure’s powertrain from the moment you plug it in. This isn’t just about convenience; it’s about precision, preventing communication errors that can mimic the very problems you’re trying to solve. This is the key to a lasting, reliable repair.
Frequently Asked Questions
What does a VIN-programmed TCM actually do?
VIN programming loads your vehicle’s specific software, including shift strategies, engine parameters, and tire size, directly onto the module before it ships. This makes it a true plug-and-play part, as it’s already tailored to your exact 2006-2009 Buick Allure, eliminating the need for dealership tools.
Is this a difficult part to install myself?
For most DIYers with basic tools, this is a straightforward installation. On the Buick Allure, the TCM is typically located in the lower air cleaner housing. The process usually takes under 30 minutes. Simply disconnect the battery, unplug the old module, install the new one, and reconnect the battery.
Will this TCM fix a P0700 trouble code?
A P0700 code is a general transmission fault code, meaning the TCM has detected a problem. While this module often resolves the root cause (like a faulty solenoid circuit inside the TCM itself), you should always diagnose any other codes that appear alongside P0700. In many cases, replacing a faulty TCM will clear the code and fix the issue.
Do I need to send my old TCM back?
No. We do not require a core charge for this part. You can keep your old module without any extra fees or hassle.
How do I confirm this fits my vehicle if it’s not a Buick Allure?
This T42 TCM fits a vast range of GM vehicles from 2006-2014. Please check the detailed fitment list on this page or cross-reference your original part number with the interchange numbers we’ve provided to ensure perfect compatibility.