Restore Flawless Shifting to Your Buick Lucerne
If your 2006-2011 Buick Lucerne is suffering from erratic shifting, delayed gear engagement, or has entered a frustrating ‘limp mode,’ a failing Transmission Control Module (TCM) is the most likely culprit. This critical component is the brain of your automatic transmission, managing every gear change and ensuring smooth, efficient operation. When it fails, it can cause a cascade of problems that significantly impact your vehicle’s drivability and safety. This genuine GM T42 TCM, part number 24235754, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
The Brains Behind the Brawn: What Does the TCM Do?
The TCM in your Lucerne continuously processes data from various sensors, including vehicle speed, engine load, and throttle position. It uses this information to command the transmission’s hydraulic solenoids, ensuring gears are selected at the precise moment for optimal performance and fuel economy. A faulty module can misinterpret this data, leading to the harsh shifts, slipping, and warning lights you may be experiencing. Ignoring these signs can lead to premature wear and catastrophic damage to your transmission’s mechanical components.
We had a 2008 Buick Lucerne come into the shop with a check engine light and a P0752 code, indicating a ‘Shift Solenoid A Stuck On’ condition. The customer had already replaced the solenoid twice with no success. Our technician immediately suspected the driver circuit within the TCM. After connecting a scope, we confirmed the TCM was commanding the solenoid to stay open erratically. Instead of a costly internal transmission repair, the fix was this exact VIN-programmed Lucerne Transmission Module. The new module corrected the solenoid command, cleared the code, and had the car shifting perfectly in under an hour.
Your Direct-Fit 2006-2011 Lucerne Transmission Module Solution
Don’t let a faulty computer sideline your vehicle or force you into an expensive dealership visit. Our T42 TCM arrives fully programmed to your car’s VIN. This critical step ensures that all software and calibrations match your vehicle’s original factory specifications, eliminating the need for additional programming tools or services. This process integrates the module seamlessly with your car’s powertrain, restoring its intended performance and reliability. It’s a hassle-free solution designed for both professional technicians and savvy DIYers.
Common Symptoms of a Failing Buick TCM
- ✔️ Harsh, jerky, or unpredictable gear shifts.
- ✔️ The vehicle gets stuck in one gear (limp mode).
- ✔️ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔️ Illuminated Check Engine Light or Transmission Warning Light.
- ✔️ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔️ A noticeable decrease in fuel efficiency.
- ✔️ Complete failure to shift gears.
Simple Installation, Lasting Results
Replacing the Lucerne Transmission Module is a straightforward process. On most 2006-2011 Lucerne models, it is located in the engine compartment on the driver’s side, often near the strut tower or under the air cleaner housing. Simply disconnect the negative battery terminal, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once reconnected, the pre-programmed module will communicate with your vehicle’s systems immediately. We recommend using a basic scan tool to clear any stored fault codes after installation to complete the process. This part is a direct replacement for numerous service numbers, including 24242391, 24234503, and 24252114, ensuring broad compatibility.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means this module is ready for installation right out of the box. We flash it with the latest GM software specific to your vehicle’s Vehicle Identification Number (VIN) before shipping. This eliminates the need for expensive dealership programming and ensures perfect compatibility and performance.
Do I need any special tools to install this TCM?
No special tools are required. Basic hand tools like a socket set are all that’s needed to unbolt the old module and install the new one. The most important step is disconnecting the vehicle’s battery before you begin.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While this module often resolves the underlying issue causing the P0700, it’s essential to scan for other specific transmission codes (e.g., P07xx) to confirm the diagnosis.
Is there a core charge for my old module?
No, there is no core charge associated with this part. You can keep your old module or dispose of it at your convenience without the hassle of returning it.
How can I be sure this fits my vehicle?
This T42 TCM is designed for 2006-2011 Buick Lucerne models. It also fits a wide variety of other GM vehicles from 2006-2014. Providing your VIN during checkout guarantees we program it correctly for your specific make and model, ensuring a perfect fit and function.