Restore Smooth, Reliable Shifting to Your Chevrolet Impala
If your 2006-2011 Chevrolet Impala is suffering from harsh shifts, getting stuck in gear, or has an illuminated check engine light with transmission codes, you’ve likely pinpointed the culprit: a failing Transmission Control Module (TCM). As a seasoned technician, I’ve seen countless Impalas exhibit these exact issues, often leading drivers to fear a costly transmission rebuild. The good news is that the fix is often much simpler and more affordable. This direct-fit T42 TCM, part number 24235753, is the solution you need to restore your vehicle’s performance and your peace of mind.
The core of the problem with these modules is often internal circuit failure caused by years of heat cycles and vibration. This failure disrupts communication between the engine and transmission, leading to the erratic behavior you’re experiencing. Our replacement 2006-2011 Impala TCM is built to meet or exceed original equipment standards and, most importantly, comes pre-programmed to your vehicle’s specific VIN. This means you can skip the expensive trip to the dealership for programming—it’s a true plug-and-play solution designed for both professional installers and determined DIYers.
Case Study: A Tricky Diagnosis
A customer brought in a 2009 Impala with an intermittent problem: sometimes it would shift perfectly, other times it would slam into gear or refuse to shift past 2nd. No specific solenoid codes were present, just a general P0700 (Transmission Control System Malfunction). After checking fluid levels and wiring, we suspected the TCM. The intermittent nature of the fault is a classic sign of an internal electronic failure within the module. We installed a VIN-programmed TCM, and the problem was solved instantly. The customer was back on the road in under an hour, avoiding what they thought would be a multi-day, thousand-dollar repair.
Is Your Impala Showing These Telltale Signs?
A faulty TCM can manifest in several ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement:
- ✔ Hard, slamming shifts or jerky gear engagement.
- ✔ The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on with codes like P0700, P0750, or other solenoid-related DTCs.
- ✔ Delayed shifting or failure to upshift or downshift correctly.
- ✔ A sudden drop in fuel economy.
- ✔ Complete loss of communication with the transmission.
A Straightforward Installation Guide for Your Impala
Replacing the 2006-2011 Impala TCM is a job most people can handle in their own driveway. For this specific model, the TCM is conveniently located under the lower air cleaner housing.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Access the Module: Locate and remove the air cleaner assembly. This will give you clear access to the TCM mounted below it.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into place.
- Reassemble and Test: Reinstall the air cleaner assembly and reconnect the battery terminal. Start the vehicle and take it for a test drive to confirm that shifting performance is restored. While not always necessary, using a scan tool to clear any stored codes is good practice.
Verified Fitment for Your Vehicle
This module is a guaranteed fit for the following vehicles, but this list is not exhaustive. It is an interchangeable replacement for numerous part numbers, ensuring wide compatibility across the GM lineup.
- Chevrolet Impala: 2006, 2007, 2008, 2009, 2010, 2011 (Transmission; located in lower air cleaner housing)
- Chevrolet Monte Carlo: 2006-2007 (Transmission; lower air cleaner housing)
- Buick Allure / LaCrosse: 2006-2009 (Transmission; lower air cleaner housing)
- Pontiac Grand Prix: 2006-2008 (Transmission; lower air cleaner housing)
- …and many other GM models including the Cobalt, HHR, G6, Malibu, and more. Please verify your part number or contact us for fitment confirmation.
Frequently Asked Questions
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. We pre-program this module to your car’s VIN before shipping. It arrives ready for installation, with no additional programming or setup required.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part, so there’s no need to worry about return shipping or waiting for a refund.
What warranty is included with this 2006-2011 Impala TCM?
This part comes with a comprehensive one-year warranty, giving you confidence in the quality and reliability of your repair.
How do I provide my VIN for programming?
You can enter your vehicle’s 17-digit VIN during the checkout process. This ensures we program the module with the correct software for your specific vehicle.
Will this fix a P0700 trouble code?
A P0700 code is a general code indicating a fault in the transmission control system. While a failing TCM is a very common cause, you should ensure other potential issues (like wiring or sensors) have been ruled out. In the vast majority of cases I’ve diagnosed, replacing the TCM resolves this code.