Restore Your Buick’s Signature Smooth Ride
Is your 2006-2011 Buick Lucerne suffering from harsh, erratic shifting, or getting stuck in gear? A failing transmission control module (TCM) can disrupt the comfortable, quiet ride you expect, turning every drive into a source of stress. This professionally VIN-programmed T42 Transmission Control Module is the definitive solution, engineered to restore your vehicle’s original performance and reliability without a costly trip to the dealership for programming.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty TCM is the likely culprit. This module is designed to be the direct fix for:
- Abrupt, jerky, or delayed gear shifts
- The vehicle entering “limp mode,” often stuck in 2nd or 3rd gear
- An illuminated Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- A complete failure to shift up or down, leading to poor acceleration and fuel economy
Installing our pre-programmed 2006-2011 Buick Lucerne transmission control module resolves these issues by re-establishing precise electronic control over your automatic transmission, ensuring every shift is smooth and perfectly timed.
Features & Tangible Benefits
- ✔ Ready to Install: This module arrives pre-programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership programming, making for a true plug-and-play installation.
- ✔ Restored Performance: By managing shift points, torque converter lockup, and line pressure with precision, this TCM brings back the seamless and responsive feel your Lucerne had when it was new.
- ✔ Lasting Reliability: Built to stringent OEM specifications, this component is designed to withstand the demands of daily driving, preventing future shifting problems and diagnostic headaches.
- ✔ Clear Communication: Ensures flawless communication between your transmission and the rest of your vehicle’s electronic systems, resolving persistent error codes.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Brains Behind the Brawn
Your Buick’s automatic transmission is a complex mechanical system, but it’s the TCM that acts as its brain. When this electronic component fails, it sends incorrect signals, causing perfectly good mechanical parts to behave erratically. Many drivers mistakenly fear a complete transmission rebuild is needed. However, replacing the faulty TCM with a properly programmed unit like this one is often the precise, cost-effective repair that solves the problem and restores total harmony to your drivetrain. This is the most common and effective fix for the electronic issues plaguing these platforms.
By choosing this expertly prepared 2006-2011 Buick Lucerne transmission control module, you’re not just buying a part; you’re investing in a reliable, long-term solution that restores the comfort and confidence you deserve in your vehicle. Installation is straightforward for those with basic mechanical skills, as the module is conveniently located in the LH engine compartment on the Lucerne. Get your Buick driving perfectly again with this essential component.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This module is delivered fully programmed to your vehicle’s VIN. It is ready for installation right out of the box, saving you time and the high cost of dealership programming services.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module will resolve the issue if the TCM itself is the source of the fault, it’s always best to have the specific secondary codes read by a scanner to confirm the diagnosis.
Where is the TCM located on my 2006-2011 Buick Lucerne?
On the Buick Lucerne for these model years, the transmission control module is typically found in the engine compartment on the left-hand (driver’s) side.
Is this part difficult to install myself?
For someone with basic automotive repair experience and tools, the installation is straightforward. It involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. The entire process usually takes less than 30 minutes.
Does this part require a core charge?
No, there is no core charge for this part. You can keep your old module without any hassle or need to return it.
What if my original part number doesn’t match 24256960 exactly?
This module is an interchange for many different service numbers, including 24252114, 24234503, 24242391, and others listed in the product details. As long as your vehicle is listed as compatible, this programmed module will function correctly.