Is Your Buick Allure Shifting Harshly or Stuck in Gear?
Experiencing erratic shifting, a check engine light, or the dreaded “limp mode” in your Buick Allure can be incredibly frustrating. These are classic signs of a failing Transmission Control Module (TCM), the electronic brain of your automatic transmission. Ignoring these symptoms can lead to more significant transmission damage and costly repairs. This VIN-programmed T42 TCM is the definitive, reliable solution to restore the smooth, predictable performance your vehicle had when it was new.
Common Symptoms & Your Solution
If your vehicle is displaying any of the following issues, a failing TCM is the most likely cause. This module is engineered to resolve these problems directly:
- Harsh, delayed, or unpredictable gear shifts
- The vehicle is stuck in one gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes are present
- Failure to upshift or downshift correctly
- Poor fuel economy and a feeling of sluggishness
Installing this pre-programmed 2006-2009 Buick Allure T42 TCM is the most effective way to permanently fix these issues and avoid the high costs and hassle of a dealership visit.
Key Features & Tangible Benefits
- ✔ 100% Plug-and-Play: This module arrives pre-programmed to your car’s specific Vehicle Identification Number (VIN). Simply install it, and you’re ready to go—no expensive trips to the dealer for programming are necessary.
- ✔ Restores Smooth Operation: By precisely managing shift points, torque converter lockup, and line pressure, this TCM eliminates harsh engagement and gear slipping, restoring your Allure’s comfortable ride.
- ✔ Built to OEM Standards: Engineered to meet or exceed original equipment specifications, ensuring long-term reliability and seamless communication with your vehicle’s other electronic systems.
- ✔ No Core Charge: Keep your old part without any extra fees or the hassle of returning a core. The price you see is the price you pay.
- ✔ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
An Expert’s Perspective on VIN Programming
“As a technician with over two decades of experience, I’ve seen countless transmission issues caused by faulty electronics. The single biggest advantage of a VIN-programmed module is that it ensures perfect harmony between the new TCM and your vehicle’s existing systems, like the Engine Control Module (ECM) and Body Control Module (BCM). A generic, non-programmed part can often create new communication errors and shifting problems. When you install a specifically programmed 2006-2009 Buick Allure T42 TCM, you’re not just replacing a part; you’re restoring the original factory logic that makes your transmission operate flawlessly.”
Don’t let a faulty TCM compromise the comfort and reliability of your car. This is the straightforward, professional-grade solution to get your vehicle back on the road with confidence. For a complete repair, ensure you are using the correct 2006-2009 Buick Allure T42 TCM by matching your part number (24234274) or vehicle details.
Frequently Asked Questions
Is this TCM really 100% plug-and-play?
Yes. We program the module to your vehicle’s VIN before it ships. This ensures it has the correct software and calibrations for your specific Allure, allowing for a direct installation without any need for further dealer programming.
Where is the TCM located on my 2006-2009 Buick Allure?
On the Buick Allure, the T42 TCM is typically located inside or underneath the lower air cleaner housing in the engine compartment. Always disconnect the vehicle’s battery before starting the replacement process.
Do I need to return my old, faulty TCM?
No. We do not require you to return your original part. There is no core charge associated with this purchase, saving you time and money.
How can I be sure the TCM is the problem?
The symptoms listed above, especially when combined with diagnostic codes like P0700 (Transmission Control System Malfunction), are strong indicators of a failed TCM. While other issues can cause similar problems, a faulty TCM is the most common culprit for these electronic transmission failures.
What if I install it and still have issues?
Our modules are rigorously tested. If you still experience problems after installation, it may indicate another issue within the transmission, such as a faulty solenoid or wiring harness. This unit is backed by our one-year replacement warranty, and our expert support team is here to help you diagnose the situation.