Restore the Smooth, Confident Ride to Your Buick Lucerne
Is your Buick Lucerne’s refined driving experience being ruined by harsh, unpredictable shifting, warning lights on the dash, or a frustrating “limp mode”? These are classic signs of a failing Transmission Control Module (TCM). Your vehicle’s computer is struggling to manage gear changes, leading to poor performance and potential damage. This pre-programmed T42 Transmission Control Module is the definitive solution, designed to restore the smooth, reliable operation you expect from your car without an expensive and time-consuming trip to the dealership.
Common Symptoms & Your Solution
A faulty TCM can turn a comfortable commute into a stressful ordeal. If you’re experiencing any of the following, it’s time for a replacement:
- Abrupt, harsh, or delayed gear shifts
- The vehicle getting stuck in a single gear (limp mode)
- Check Engine Light or Transmission Warning Light illuminated
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes
- A noticeable decrease in fuel economy
- Complete failure to shift gears
This module is the direct-fit, plug-and-play fix for these issues. As the central command for your transmission, a new, properly programmed 2006-2011 Buick Lucerne transmission control module will resolve these problems, ensuring precise communication between your engine and transmission for optimal performance.
Features & Tangible Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This critical step ensures perfect communication with your car’s other systems, eliminating the need for dealership programming and saving you hundreds of dollars.
- ✔ Restore Smooth Performance: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the seamless, comfortable ride your Buick was designed for.
- ✔ Engineered for Reliability: Built to meet strict OEM standards, this module provides a dependable, long-term solution to common transmission electronic failures.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles like your Lucerne, the TCM doesn’t just change gears; it’s part of a complex network of computers. It constantly communicates with the Engine Control Module (ECM), Anti-lock Brake System (ABS), and more. Our VIN programming service isn’t just a convenience—it’s essential. We flash the module with the latest GM software specific to your car’s exact build. This ensures that it knows every detail, from your engine size to your final drive ratio, for flawless operation, correct shift timing, and optimal fuel efficiency right out of the box.
By replacing your failing unit with this expertly prepared 2006-2011 Buick Lucerne transmission control module, you are not just fixing a part; you are restoring your vehicle’s core performance and your peace of mind on the road. This part is a direct replacement for service numbers including 24242391, 24234503, 24252114, and 24239224.
Frequently Asked Questions
What does a transmission control module do?
The Transmission Control Module (TCM) is a computer that acts as the “brain” of your automatic transmission. It collects data from various sensors in the vehicle and uses that information to control when and how the transmission shifts gears, ensuring smooth operation and efficiency.
Is this 2006-2011 Buick Lucerne transmission control module difficult to install?
For someone with basic mechanical skills, the installation is straightforward. The TCM is typically located in the engine compartment (on the LH side for the Lucerne) and can often be replaced in under 30 minutes. We recommend disconnecting the battery before starting the job.
Do I need to take my car to a dealer after installation?
No. Because we pre-program the module to your car’s VIN, no additional dealership programming or calibration is required. It is a true plug-and-play solution. You may need a basic scan tool to clear any stored fault codes after installation.
How do I know for sure that my TCM is failing?
Common signs include erratic shifting, the vehicle being stuck in one gear, and specific diagnostic trouble codes like P0700. While these symptoms strongly point to a bad TCM, it’s always best to have a qualified mechanic perform a full diagnosis to rule out other potential issues like bad solenoids or wiring.
Will this part fit vehicles other than the Buick Lucerne?
Yes, this T42 TCM is compatible with a wide range of 2006-2014 General Motors vehicles, including many Chevrolet, GMC, Cadillac, Pontiac, and Saturn models. Please check the detailed fitment list on this page to confirm compatibility with your specific vehicle.
What is a “core charge” and do I have to pay one?
A core charge is a deposit that is refunded when you return your old part. We do not require a core charge for this module, so you can keep your old part without any hassle or extra cost.