2006-2011 Lucerne TCM 24235732 VIN Programmed Transmission Control Module

Is Your Buick Lucerne’s Transmission Acting Up?

There’s nothing more frustrating than when your smooth, comfortable Buick Lucerne starts shifting harshly, hesitating between gears, or worse, gets stuck in ‘limp mode.’ You press the gas, and instead of a confident response, you get a jarring clunk or a delayed, sluggish engagement. These aren’t just annoyances; they’re classic signs that the brain of your transmission—the Transmission Control Module (TCM)—is failing. Over my two decades in the garage, I’ve seen this exact scenario play out countless times. A customer’s 2008 Buick Lucerne came in last week with a check engine light and was stuck in 3rd gear. They were worried about a full transmission rebuild, but a quick scan showed a P0752 code (Shift Solenoid A Stuck On). We traced it back to a faulty TCM, not the solenoid itself. Replacing the module had them back on the road in under an hour, saving them thousands.

The Telltale Signs of a Failing Lucerne TCM

Your vehicle’s On-Board Diagnostic (OBD) system is your first line of defense. If you’re experiencing any of the following issues, a failing TCM is the likely culprit. Don’t ignore these warnings, as they can lead to more significant transmission damage over time.

• ✔ Harsh, erratic, or delayed gear shifts.
• ✔ The vehicle is stuck in a single gear (often called limp mode).
• ✔ Check Engine Light or Transmission Warning Light is illuminated.
• ✔ Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0751, or other solenoid-related faults.
• ✔ A sudden drop in fuel economy.
• ✔ The transmission seems to slip out of gear for no reason.

Your Direct Solution: A VIN-Programmed 2006-2011 Lucerne TCM

This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take this OEM-quality T42 Transmission Control Module and program it specifically to your Buick Lucerne’s Vehicle Identification Number (VIN). This critical step ensures the module communicates flawlessly with your vehicle’s engine computer and other systems, just like the original. It arrives loaded with the latest GM software updates, resolving common factory bugs and ensuring optimal shift patterns and performance from day one.

• ✔ Plug & Play Installation: Because it’s pre-programmed to your VIN, you can skip the expensive trip to the dealership for coding. It’s a true direct-fit solution.
• ✔ Restored Performance: Eliminates error codes, restores smooth shifting, and improves transmission response and fuel efficiency.
• ✔ Guaranteed Quality: Built to strict OEM specifications for reliability and backed by our one-year warranty for your peace of mind.
• ✔ Broad Compatibility: This module, part number 24235732, also interchanges with other service numbers such as 24252114, 24234503, and 24240449, ensuring a perfect match.

Simple Installation Guide: Get it Done in Under 30 Minutes

Replacing the TCM on your 2006-2011 Buick Lucerne is a straightforward job that most DIY mechanics can handle with basic tools. The module is conveniently located in the engine bay for easy access.

1. Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
2. Locate the Module: On the Buick Lucerne, the TCM is typically found in the left-hand (driver’s side) of the engine compartment. It may be near the strut tower or under the air cleaner housing.
3. Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt the module from its mounting bracket.
4. Install the New TCM: Bolt the new, VIN-programmed module into place and securely plug in the electrical connectors. You should hear a ‘click’ as they lock.
5. Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and check to ensure the check engine light is off and the transmission shifts smoothly through all gears. While not always necessary, using a basic OBD2 scan tool to clear any stored codes is good practice.