Restore Your Impala’s Shifting Performance
Is your 2006-2011 Chevrolet Impala suffering from harsh shifting, delayed gear engagement, or getting stuck in limp mode? These are classic signs of a failing Transmission Control Module (TCM). 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 lead to poor performance, decreased fuel economy, and potentially catastrophic transmission damage. This OEM-quality T42 TCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
From the Diagnostic Bay
We recently had a 2009 Impala come into the shop with a classic complaint: it would shift hard from 1st to 2nd gear but was fine otherwise. The check engine light was on, and a scan revealed a P0752 code for ‘Shift Solenoid A Stuck On’. After testing the solenoid and wiring, which checked out fine, we turned our attention to the TCM. The internal drivers on these modules can weaken over time, sending incorrect signals. We installed one of our VIN-programmed T42 modules, cleared the codes, and the car shifted like it just rolled off the factory floor. It’s a common issue that a new module solves instantly.
Symptoms of a Failing 2006-2011 Impala TCM
- ✔ Harsh, erratic, or delayed gear shifts.
- ✔ Vehicle is stuck in a single gear (limp mode).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0751, or other solenoid-related codes are present.
- ✔ A sudden drop in fuel efficiency.
- ✔ Failure to shift into or out of gear.
- ✔ Intermittent loss of communication with the transmission module.
The Plug-and-Play Advantage
Forget expensive trips to the dealership for programming. Our key advantage is the complimentary VIN programming service. When you order, you provide your vehicle’s VIN, and we flash the module with the latest GM software specific to your Impala. This ensures that all factory shift strategies and operational parameters are correctly loaded, making installation as simple as swapping the part. This process eliminates compatibility issues and allows you to get your car back on the road quickly and affordably.
This module is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with numerous service numbers, including 24242391, 24234503, 24252114, and 24243901, guaranteeing a perfect fit for your repair needs.
Installation and Setup
For the 2006-2011 Impala, the TCM is typically located under the air cleaner housing, making it accessible for a straightforward DIY installation. The process usually takes less than 30 minutes. Always disconnect the vehicle’s battery before starting the repair to prevent electrical damage and help reset the system. After installing the new module and reconnecting the battery, use a standard OBD2 scan tool to clear any stored transmission codes. With no core charge, you can keep your old part without the hassle of returns.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. This module comes pre-programmed to your vehicle’s VIN number. It is ready to install right out of the box, requiring no additional programming or dealership visits.
Where is the TCM located on my 2008 Impala?
On most 2006-2011 Chevrolet Impala models, the Transmission Control Module is found bolted to the lower air cleaner housing in the engine bay. You will need to remove the air intake assembly to access it.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While a faulty TCM can cause this code, it’s important to scan for other specific transmission codes (like P07xx) to pinpoint the exact issue. This module often resolves the root cause of the P0700 code.
Is this compatible with other GM vehicles?
Yes, this T42 TCM is compatible with a wide array of 2006-2014 GM vehicles, including models like the Chevrolet Tahoe, Silverado, Cobalt, GMC Sierra, Buick LaCrosse, and Pontiac G6. Always verify the part number or consult our fitment guide to ensure compatibility.
What is the warranty on this part?
This transmission control module is backed by a one-year warranty, ensuring reliability and peace of mind for your repair.