Restore Your Impala’s Drivability and Performance
If your 2006-2011 Chevrolet Impala is suffering from erratic shifting, getting stuck in gear, or throwing transmission-related trouble codes, the problem is very likely a failing Transmission Control Module (TCM). As a seasoned technician, I’ve seen countless GM vehicles, especially the Impala, come into the bay with these exact issues. The TCM is the electronic brain of your automatic transmission, and when it fails, it can make your car feel unreliable and unsafe to drive. This replacement T42 TCM, part number 24235754, is the definitive, hassle-free solution to get your car shifting smoothly again.
The biggest challenge with replacing a TCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. We pre-program this module to your car’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives at your door ready for a true plug-and-play installation. You can bypass the dealer, save hundreds of dollars, and get your Impala back on the road in under an hour. This is the same reliable fix I’d perform in my own shop for a customer’s vehicle.
A Technician’s Notebook
I remember a 2009 Impala that came in with a classic complaint: intermittent, hard 1-2 shifts and occasionally getting stuck in 3rd gear (limp mode), but only after it warmed up. The owner had already replaced a shift solenoid with no luck. A quick scan showed a general P0700 code. Instead of chasing ghosts, we went straight to the TCM. Heat soak and vibration are the top enemies of these modules. We installed one of our VIN-programmed units, and the car drove perfectly. The customer was thrilled to have a simple, permanent fix without a massive bill from the dealership.
Is Your Impala Showing These Telltale Signs?
A faulty TCM can manifest in several ways. If you’re experiencing any of the following, it’s time to consider a replacement 2006-2011 Impala TCM:
- ✔ Harsh, slamming, or delayed gear shifts.
- ✔ The vehicle is stuck in a single gear (often called ‘limp mode’).
- ✔ An illuminated Check Engine Light or Transmission Warning Light.
- ✔ Diagnostic Trouble Codes (DTCs) stored, such as the generic P0700 or specific solenoid codes (e.g., P0750, P0753, P0758).
- ✔ A sudden drop in fuel economy.
- ✔ Complete loss of communication with the transmission module.
Your 30-Minute Path to a Smooth Ride
For the 2006-2011 Chevy Impala, this job is straightforward enough for any confident DIYer. No specialized tools are needed.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electronic work.
- Locate the Module: On your Impala, the TCM is typically found bolted to the lower air cleaner housing in the engine bay. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Mount your new, pre-programmed module in the same location and securely plug in the connectors.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s always best practice to use a basic OBD2 scan tool to clear any old fault codes from the vehicle’s memory. Start the car and enjoy the restored performance!
Verified Fitment for Your Vehicle
This module is a direct replacement for your 2006-2011 Impala TCM. While it is guaranteed to fit your Impala, it is also compatible with a wide range of other General Motors vehicles that use the T42 controller, including:
- Chevrolet: Impala (06-11), Monte Carlo (06-07), HHR (06-11), Cobalt (06-10), Malibu (06-10)
- Pontiac: G6 (06-10), Grand Prix (06-08)
- Buick: LaCrosse (06-09), Allure (06-09), Lucerne (06-11)
- Saturn: Aura (07-09), Ion (06-07), Vue (07-10)
- And many more GM trucks, vans, and SUVs. Please verify the part number for your specific application. This part is interchangeable with numbers like 24252114, 24234503, and 24242391.
What does ‘VIN Programmed’ mean for me?
What does ‘VIN Programmed’ mean for me?
It means we flash the module with your vehicle’s specific VIN and the latest GM software before we ship it. This ensures it communicates perfectly with your car’s other computers (like the ECM) right out of the box, just like a part from the dealer, but without the extra cost and hassle of a programming appointment.
Will I need to visit a mechanic or dealer after installing this part?
No. Because the module is pre-programmed, no further security relearn or setup procedures are required. The installation can be completed in your own driveway, saving you time and labor costs.
Where is the TCM located on my 2007 Chevy Impala?
For the 2006-2011 Chevrolet Impala, the Transmission Control Module is located in the engine compartment, attached to the lower air cleaner housing. It’s easily accessible once you remove the air filter assembly.
Will this fix my transmission that is stuck in limp mode?
Yes, a faulty TCM is one of the most common causes of a GM vehicle entering ‘limp mode’ (stuck in 2nd or 3rd gear). Replacing it with this correctly programmed unit is the proper fix for an electronic module failure.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep or dispose of your old module without the hassle of returning it.