Is Your 2006-2011 Impala Shifting Erratically?
If your Chevrolet Impala is experiencing harsh shifts, delayed gear engagement, or has the check engine light illuminated with transmission-related codes, a failing Transmission Control Module (TCM) is the most likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for managing shift points, torque converter clutch engagement, and fluid pressure. When it fails, it can mimic the symptoms of a catastrophic transmission failure, leading to costly and unnecessary repairs. This genuine OEM-quality T42 TCM, service number 24256960, is the definitive solution to restore your vehicle’s performance and drivability.
From the Diagnostic Bay
We had a 2009 Impala come into the shop with the classic complaint: “My transmission is shot.” The owner was convinced he needed a full rebuild. It was slamming into gear and sometimes wouldn’t shift past 2nd. We pulled the codes and saw a P0700 (Transmission Control System Malfunction) and a few solenoid circuit codes. Instead of jumping to conclusions, we checked the TCM connectors for corrosion and then tested the module itself. The internal circuits were failing intermittently. We installed one of our VIN-programmed T42 modules, cleared the codes, and the car drove like it just left the showroom. A 30-minute fix saved the customer thousands of dollars and a week without their car.
Symptoms of a Failing Impala TCM
- ✔ Unpredictable or harsh gear shifts that slam or jerk the vehicle.
- ✔ The transmission feels like it’s slipping or failing to engage a gear properly.
- ✔ Your Impala is stuck in “limp mode,” often locked in 2nd or 3rd gear, with limited power.
- ✔ The Check Engine Light or a dedicated transmission warning light is on.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0755, or other solenoid-related faults are stored.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting and torque converter operation.
- ✔ Complete loss of communication with the transmission, resulting in a no-shift condition.
The Plug-and-Play Solution: A Pre-Programmed 2006-2011 Impala Transmission Module
Replacing the TCM on these vehicles used to require a trip to the dealership for expensive programming. Our modules eliminate that step entirely. We pre-program this 2006-2011 Impala Transmission Module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that all factory settings, shift strategies, and software updates from GM are loaded and ready to go. The result is a simple, plug-and-play installation that you can perform in your own driveway. No special tools, no dealership appointments, and no core charges. You get a reliable part that communicates flawlessly with your Impala’s engine computer and other systems, restoring the smooth, efficient performance you expect.
Easy Installation Guide
For the 2006-2011 Chevrolet Impala, the TCM is typically located under the hood, mounted inside the lower air cleaner housing. The process is straightforward:
- Safety First: Disconnect the negative terminal of your vehicle’s battery to prevent electrical shorts and reset the onboard computers.
- Locate the Module: Open the hood and find the air cleaner box. You will need to remove the top portion of the air cleaner assembly to access the TCM mounted below it.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old TCM. Press the release tabs firmly to avoid damaging the clips. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Final Steps: Reassemble the air cleaner housing and reconnect the battery terminal. Start the vehicle. While our programming handles the critical setup, it’s always a good practice to use a basic OBD2 scan tool to clear any lingering fault codes from the system’s memory.
This module is a direct replacement for numerous part numbers, including 24252114, 24234503, 24230461, 24242391, and many others, ensuring broad compatibility across the GM platform.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This is the key benefit of our product. We program the module to your car’s exact VIN before shipping. It arrives ready for immediate installation without any need for dealer tools or software.
Where is the TCM located on my 2008 Impala?
On the 2006-2011 Impala, as well as similar models like the Monte Carlo and LaCrosse, the TCM is found inside the lower section of the engine’s air cleaner housing. Access requires removing the top of the air filter box.
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 often resolves the root cause of the P0700 and its related specific codes (like solenoid faults), you should always confirm the diagnosis. However, a faulty module is the most common cause of these errors.
What is the warranty on this part?
This transmission control module comes with a comprehensive one-year warranty, giving you peace of mind and protection against defects.
Is this a new or used part?
This is a high-quality, OEM-standard component that has been thoroughly inspected and prepared to meet or exceed original factory performance specifications, ensuring long-term reliability for your vehicle.