Is Your Buick Allure Experiencing Transmission Problems?
If your vehicle is suffering from harsh shifting, delayed gear engagement, or has entered a frustrating “limp mode,” a failing Transmission Control Module (TCM) is the most likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, it can cause a cascade of performance issues, from poor fuel economy to a complete inability to shift gears, often triggering the check engine light with codes like P0700.
This genuine OEM-quality T42 Transmission Control Module, part number 24239926, is the definitive solution for restoring your vehicle’s transmission to factory performance. The most critical feature of this module is that it arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This means no expensive trips to the dealership for programming are required. It’s a true plug-and-play solution designed to get you back on the road quickly and affordably.
Expert Pro Tip
Before installing your new TCM, take a moment to inspect the wiring harness connectors for any signs of corrosion, dirt, or bent pins. A poor connection can mimic the symptoms of a failed module. Cleaning the connectors with a dedicated electronics cleaner can ensure a solid connection and prevent future issues.
Symptoms of a Failing Buick Allure TCM
- ✔ Harsh, erratic, or delayed shifting between gears.
- ✔ Vehicle gets stuck in a single gear (limp mode), often 2nd or 3rd.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are present.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission feels like it’s slipping or failing to engage properly.
- ✔ Complete loss of communication with the transmission module.
Guaranteed Compatibility and Performance
This T42 TCM is a direct replacement for a wide range of General Motors vehicles from 2006-2014 equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. By providing your VIN during checkout, we ensure the module is loaded with the latest GM software updates specific to your vehicle, guaranteeing optimal shift patterns, torque converter lockup, and overall transmission health. This module is interchangeable with numerous part numbers, including 24252114, 24234503, 24230461, and 24239224, making it a versatile and reliable choice for your repair.
Frequently Asked Questions
What does this Transmission Control Module do?
The TCM acts as the central computer for your automatic transmission. It receives data from various sensors on the engine and vehicle, and uses this information to control shift solenoids, regulate hydraulic pressure, and manage torque converter lockup for smooth, efficient operation.
Is this module truly plug-and-play?
Yes. Because we program the module to your vehicle’s VIN before shipping, it is ready for installation right out of the box. Simply disconnect the old module, connect the new one, and you’re done. No further programming or dealership visits are necessary.
Where is the TCM located on my vehicle?
The location varies by model. Common locations include the engine compartment on the driver or passenger side, near the strut tower, next to the battery, or under the air cleaner box. The provided fitment list gives specific locations for many compatible vehicles.
How can I be sure my TCM is the problem?
Common symptoms like erratic shifting, limp mode, and specific transmission-related trouble codes (like P0700) are strong indicators of a failing TCM. While a professional diagnosis is always recommended, these symptoms very often point directly to a faulty module.
Do I need to return my old part (core)?
No, there is no core charge for this part. You can keep your old module, which saves you the time and hassle of a return shipment.