Restore Your Buick’s Shifting Performance
If your 2006-2011 Buick Lucerne is suffering from harsh shifting, delayed gear engagement, or has a persistent check engine light, a faulty Transmission Control Module (TCM) is the likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for managing shift points, torque converter lockup, and fluid pressure. When it fails, it can leave your vehicle stuck in ‘limp mode’ or make driving unpredictable and unsafe. This replacement GM T42 TCM, part number 24235732, is the definitive solution to restore your vehicle’s original performance and drivability.
Expert Pro Tip
Before installing your new TCM, always disconnect the vehicle’s battery for at least 15 minutes. This not only ensures your safety but also helps reset the vehicle’s main computer (ECU), allowing it to properly recognize and communicate with the new module upon startup. After installation, use a quality OBD2 scan tool to clear any stored Diagnostic Trouble Codes (DTCs) for a clean slate.
Is Your Lucerne TCM Failing?
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ Vehicle is stuck in a single gear (limp mode), typically 2nd or 3rd.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related faults.
- ✔ The transmission refuses to upshift or downshift correctly.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔ Intermittent electrical problems or a complete loss of transmission function.
Why Choose Our Programmed 2006-2011 Lucerne Transmission Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. Each module is pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN) using the latest official GM software. This critical step ensures that the TCM has the correct shift strategies and operational parameters for your exact Lucerne model, eliminating the need for an expensive trip to the dealership for programming. It’s a true plug-and-play fix that resolves common DTCs and restores the smooth, reliable operation you expect from your vehicle.
Built to strict OEM specifications, this T42 module ensures long-lasting reliability and performance. It is a direct replacement for a wide range of original part numbers, including 24252114, 24234503, 24230461, and 24235732. Installation is straightforward for a DIY mechanic or professional technician, typically located in the engine compartment on the LH side for the Lucerne. With no core charge required, you can complete the repair without the hassle of returning your old part.
Frequently Asked Questions
What does a VIN-programmed TCM mean?
It means the module arrives pre-loaded with the specific software and calibrations for your vehicle’s VIN. This allows for a simple plug-and-play installation without requiring any additional programming from a dealership, saving you time and money.
Do I need to take my car to a dealer after installation?
No. Because this 2006-2011 Lucerne Transmission Module is already programmed to your VIN, no dealership visit is necessary. Simply install the part, reconnect the battery, and clear any old codes with a scan tool.
Where is the TCM located on a 2006-2011 Buick Lucerne?
On the Buick Lucerne from 2006 to 2011, the Transmission Control Module is typically found in the engine compartment, on the left-hand (driver’s) side.
Will this part fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While replacing a faulty TCM will often resolve the P0700 and related codes, it’s always best to diagnose the specific codes the TCM has stored (e.g., solenoid circuit faults) to confirm the module itself is the issue.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, which simplifies the repair process for you.