Restore Crisp, Reliable Shifting to Your Chevrolet Monte Carlo
If your 2006-2007 Monte Carlo is suffering from harsh shifts, getting stuck in gear, or throwing transmission-related check engine lights, the culprit is often a failing Transmission Control Module (TCM). As an automotive diagnostician with over two decades of experience, I’ve seen firsthand how a faulty TCM can cripple a vehicle’s performance and cause immense frustration. This T42 Transmission Control Module, part number 24235732, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Case Study: The Ghost in the Transmission
A customer brought in his ’07 Monte Carlo with a complaint that stumped two other shops: intermittent, violent 1-2 shifts and occasionally getting stuck in 3rd gear (limp mode), but with no consistent codes other than a general P0700 (Transmission Control System Malfunction). We checked the fluid, solenoids, and wiring—all perfect. The issue would vanish for days, then return. Drawing on experience, I suspected the TCM was failing internally due to heat soak. We swapped in a VIN-programmed T42 module. The problem was instantly and permanently solved. It’s a classic failure mode for these units, where internal logic breaks down under normal operating temperatures, making a reliable 2006-2007 Monte Carlo TCM replacement essential.
Is Your Monte Carlo Exhibiting These Transmission Faults?
A failing TCM doesn’t always mean a complete transmission failure. Often, it presents as a series of frustrating electronic and performance issues. Here are the tell-tale signs I look for during diagnostics:
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ The vehicle is stuck in one gear (often called “limp mode”).
- ✔ Check Engine Light is on with codes like P0700, P0750, or other solenoid-specific faults.
- ✔ Inability to upshift or downshift, leading to poor acceleration and fuel economy.
- ✔ Unpredictable communication errors with the scan tool.
- ✔ A feeling of the transmission slipping between gears.
Your Straightforward 30-Minute Installation Guide
One of the biggest advantages of this module is that it eliminates the need for a trip to the dealership for programming. You can perform this repair right in your driveway with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the TCM: On your 2006-2007 Monte Carlo, the TCM is conveniently located under the lower air cleaner housing in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed 2006-2007 Monte Carlo TCM into place. Securely reconnect the electrical harnesses.
- Final Steps: Reconnect the battery terminal. Start the vehicle and allow it to run for a few minutes. While the module is plug-and-play, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes.
Verified Fitment For Your Vehicle
This module is a direct-fit replacement for your 2006-2007 Monte Carlo TCM. It is also compatible with a wide range of other General Motors vehicles that use the T42 controller, making it a versatile and reliable part for many applications. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24235753, and 24240449. Please verify the part number or use our vehicle selector to ensure perfect compatibility.
This module is confirmed to fit:
- CHEVROLET MONTE CARLO 2006-2007: Transmission; (lower air cleaner housing)
- CHEVROLET IMPALA 2006-2011: 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 cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
Why is VIN programming so important for this part?
VIN programming loads your car’s specific software, including shift points, gear ratios, and tire size information, onto the module. Without it, the TCM won’t communicate correctly with your vehicle’s other computers, leading to poor performance or a no-start condition. Our service saves you a costly and time-consuming trip to the dealer.
What does the TCM actually do?
The Transmission Control Module is the ‘brain’ of your automatic transmission. It uses data from engine and speed sensors to control exactly when the transmission shifts gears, when to lock the torque converter for better fuel efficiency, and to monitor the overall health of the transmission.
Do I need any special tools for installation?
No special tools are required. A basic socket set to remove the mounting bolts and potentially a flathead screwdriver to help release the connector tabs is all you should need. The entire process typically takes less than 30 minutes.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, which simplifies the process for you.
Will this fix a P0700 check engine light code?
In many cases, yes. The P0700 code is a general fault code indicating the TCM has detected a problem. If the TCM itself is the source of the problem, replacing it will resolve the issue and allow the code to be cleared permanently.