Restore Your Buick’s Smooth, Reliable Shifting
Is your 2006-2009 Buick Allure suffering from jerky shifts, delayed gear engagement, or a frustrating check engine light? These are classic signs of a failing Transmission Control Module (TCM), disrupting your car’s smooth, comfortable ride. This genuine GM T42 TCM is the direct-fit, plug-and-play solution to restore your transmission’s factory performance and your confidence on the road. It arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for an expensive trip to the dealership for programming.
Common Symptoms & Your Solution
A faulty TCM can cause a cascade of frustrating issues that make your vehicle feel unreliable. If you’re experiencing any of the following, this module is the definitive solution:
- Harsh or Erratic Shifting: Abrupt, jerky gear changes or a feeling of the transmission slipping between gears.
- Limp Mode Activation: The vehicle gets stuck in a single gear (usually 2nd or 3rd) to prevent further damage.
- Delayed Engagement: A noticeable pause when shifting from Park into Drive or Reverse.
- Warning Lights: A persistent Check Engine Light or Transmission Warning Light on your dashboard, often with Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults.
- Poor Performance: A sudden drop in fuel efficiency, failure to upshift or downshift correctly, or signs of the transmission overheating.
Installing this precisely calibrated Buick Allure transmission control module resolves these problems by restoring proper communication between your engine and transmission, ensuring seamless operation.
Features & Benefits
- ✔ 100% Plug-and-Play Installation: This module is expertly programmed to your vehicle’s VIN number. Simply install it, and you’re ready to go—no additional dealership flashing or expensive tools required.
- ✔ Restores Factory Performance: By managing shift points, torque converter lockup, and line pressure with the latest GM software updates, it brings back the smooth, responsive feel your Allure had when it was new.
- ✔ Eliminates Common DTCs: Specifically engineered to correct the root cause of transmission codes like P0700 and related solenoid faults, helping you pass emissions tests and turn off that check engine light for good.
- ✔ Built to OEM Standards: Manufactured to strict General Motors specifications for perfect fitment and long-lasting durability, ensuring reliable performance for years to come.
- ✔ Complete Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles like your Buick Allure, the TCM doesn’t just manage the transmission—it communicates constantly with the Engine Control Module (ECM) and other vehicle systems. A generic, non-programmed module can cause communication conflicts, leading to persistent performance issues or even new error codes. Our VIN-specific programming ensures the TCM has the exact software and calibration your car’s unique configuration requires. This guarantees seamless integration, optimal fuel economy, and the most reliable shifting performance possible, saving you from the diagnostic headaches and costs of a mismatched part.
Don’t let a faulty TCM compromise your vehicle’s comfort and safety. By choosing the correct, pre-programmed Buick Allure transmission control module, you are making a smart investment in your car’s longevity and your own peace of mind. Installation is straightforward for a competent DIY mechanic and is typically located under the lower air cleaner housing.
Frequently Asked Questions
What does a VIN-programmed TCM actually do?
VIN programming loads your vehicle’s specific software and operational parameters onto the module before it ships. This ensures it works perfectly with your engine, axle ratio, and tire size right out of the box, just like the original part from the factory, without requiring any dealer intervention.
Is this a difficult part to install on my Allure?
For someone with basic mechanical skills, the installation is straightforward. On the 2006-2009 Allure, the TCM is typically found under the lower air cleaner housing. The process involves disconnecting the battery, removing the air cleaner assembly for access, unplugging the electrical connectors, and unbolting the old module. The entire job usually takes less than an hour.
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. Often, the root cause is the TCM itself. Replacing a failing Buick Allure transmission control module is a very common and effective way to resolve a P0700 code and related transmission faults.
Do I need to send my old part back?
No. We do not require a core return for this part. You can keep your old module, which saves you the time, cost, and hassle of shipping it back.
How can I be sure this is the right part for my car?
This T42 TCM is the correct fit for 2006-2009 Buick Allure models. It is also a direct replacement for multiple service numbers, including 24252114, 24234503, and 24235340. Providing your VIN at checkout guarantees we program it perfectly for your specific vehicle.