Restore Peak Performance to Your Buick Allure’s Transmission
Is your 2006-2009 Buick Allure suffering from harsh shifting, delayed gear engagement, or a persistent check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating shift points, managing torque converter lockup, and ensuring smooth, efficient operation. When it fails, it can lead to poor drivability, decreased fuel economy, and even leave you stranded in limp mode.
This OEM-quality GM T42 TCM, service number 24234503, is the definitive solution for restoring your vehicle’s transmission to factory standards. It arrives at your door pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership visits for programming. This plug-and-play module is designed for a direct fit, making the replacement process straightforward for both professional technicians and skilled DIYers.
Expert Pro Tip
Before beginning the installation, always disconnect the negative terminal of your vehicle’s battery. This not only ensures your safety but also helps reset the vehicle’s electronic systems. After installing the new TCM and reconnecting the battery, use a standard OBD-II scan tool to clear any stored Diagnostic Trouble Codes (DTCs) to ensure a clean slate for the new module.
Common Symptoms of a Faulty Allure Transmission Control Module
- ✔ Harsh, erratic, or delayed shifting between gears.
- ✔ The vehicle gets stuck in a single gear (limp mode), often 2nd or 3rd.
- ✔ Illumination of the Check Engine Light or Transmission Warning Light.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔ Complete loss of upshifting or downshifting capabilities.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission may seem to slip or fail to engage properly from a stop.
Why Choose Our Pre-Programmed 2006-2009 Allure Transmission Control Module?
This isn’t just a replacement part; it’s a comprehensive repair solution. We take the guesswork and hassle out of the process. By programming the module with the latest GM software updates specific to your VIN, we ensure optimal performance and compatibility right out of the box. This module directly controls critical transmission functions, resolving common software-related glitches and ensuring reliable, smooth operation for years to come. Built to strict OEM specifications and backed by a one-year warranty, it provides peace of mind and dependable performance.
This unit is a direct interchange for a wide range of part numbers, including: 24252114, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, 24240400, 24256960, and YNXS.
Frequently Asked Questions
What does this Transmission Control Module do?
The TCM acts as the central computer for your automatic transmission. It receives data from various sensors on the engine and transmission to control shift solenoids, regulate hydraulic pressure, and manage the torque converter, ensuring smooth and timely gear changes.
Is this part truly plug-and-play?
Yes. Because we pre-program the module to your vehicle’s specific VIN number before shipping, it is ready for installation immediately upon arrival. No additional programming or trips to the dealership are required.
Where is the TCM located on a 2006-2009 Buick Allure?
On the Buick Allure and similar models like the LaCrosse and Impala, the T42 TCM is typically found attached to the lower air cleaner housing in the engine compartment. Always consult a vehicle-specific repair manual to confirm the exact location before starting work.
Will this module fix transmission error code P0700?
A P0700 code is a general fault code indicating the TCM has detected a problem and has requested the check engine light be turned on. While a faulty TCM can cause a P0700 code, it’s often accompanied by more specific codes. Replacing a defective TCM is a very common fix for these related issues.
Do I need to return my old TCM (core charge)?
No, there is no core charge for this part. You can keep your old module without any additional fees or hassle, simplifying your repair process.