Is your 2006-2009 Buick Allure suffering from unpredictable and harsh shifting, getting stuck in gear, or displaying a persistent check engine light? These frustrating symptoms often point directly to a failing Transmission Control Module (TCM). Restore the smooth, reliable performance your vehicle was built for with our pre-programmed T42 TCM, engineered as a direct-fit, plug-and-play solution to get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty TCM can turn your daily drive into a stressful ordeal. If you’re experiencing any of the following issues, this module is the definitive fix you need. It is specifically designed to resolve problems associated with a failing original unit, making it the ideal replacement Buick Allure transmission control module for a lasting repair.
- Harsh, erratic, or delayed gear shifts
- Vehicle stuck in a single gear (limp mode)
- Illuminated Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Noticeable decrease in fuel economy
- Complete loss of transmission communication
Key Features & Tangible Benefits
- ✔ 100% Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This critical step ensures perfect communication between the TCM and your vehicle’s other systems, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Restored Drivability: By precisely managing shift points, torque converter clutch engagement, and line pressure, this module restores the smooth and responsive driving experience you expect from your Buick.
- ✔ Engineered for Reliability: Built to meet or exceed strict OEM specifications, our T42 TCM provides a dependable, long-term solution to common transmission electronic failures.
- ✔ No Core Charge Required: Keep your old part without any extra hassle or hidden fees. The price you see is the price you pay.
- ✔ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of Proper Programming
From over 20 years of hands-on diagnostics, I can tell you that improper or missing programming is the #1 reason for a failed TCM replacement. A generic, non-programmed module simply cannot function correctly. Our process uses the latest GM software updates tied directly to your VIN, ensuring the Buick Allure transmission control module operates with the correct shift strategies and calibrations from the moment it’s installed. This isn’t just a convenience—it’s essential for the health and longevity of your transmission.
This module is the correct component for a wide range of GM vehicles and is a direct replacement for service numbers 24252114, 24234503, 24238856, and more. By installing this expertly prepared Buick Allure transmission control module, you are not just replacing a part; you are restoring your vehicle’s integrity and your confidence behind the wheel.
Frequently Asked Questions
Do I need to program this module after I receive it?
No. This Transmission Control Module comes fully pre-programmed to your vehicle’s VIN. It is ready for installation right out of the box, with no need for additional programming or dealership visits.
Where is the TCM located on my 2006-2009 Buick Allure?
On the Buick Allure for these model years, the TCM is typically found inside or attached to the lower air cleaner housing in the engine compartment. Always disconnect the vehicle’s battery before starting the replacement.
Will this part fix a P0700 trouble code?
A P0700 code is a general fault code indicating that the TCM has detected a problem and has requested the check engine light be turned on. While this module often resolves the underlying issue causing the P0700, it’s always best to have the specific transmission codes (e.g., P07xx) read to confirm the diagnosis.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the installation is straightforward. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. The entire process can usually be completed in under 30 minutes.
What if my part number isn’t listed?
The provided list of interchangeable part numbers is extensive but may not be exhaustive. If your module looks identical and your vehicle is listed as compatible, this part will likely work. Please contact our support team with your VIN to confirm a perfect match.