Restore Smooth Shifting to Your Pontiac G6
If your 2006-2010 Pontiac G6 is suffering from harsh shifting, getting stuck in gear, or has an illuminated check engine light, a failing Transmission Control Module (TCM) is the most likely culprit. As the electronic brain of your automatic transmission, the TCM is responsible for every gear change. When it fails, it can make your car feel unreliable and unsafe to drive. This replacement Pontiac G6 Transmission Module, part number 24240449, is the definitive solution to restore your vehicle’s performance and drivability.
What sets our modules apart is the pre-configuration process. We flash the unit with your vehicle’s specific VIN, ensuring it arrives ready for a true plug-and-play installation. This eliminates the need for expensive trips to the dealership for programming, saving you both time and money. Get your G6 back on the road quickly with a part designed for lasting reliability.
A Technician’s Notebook: The G6 Stuck in Third Gear
A customer brought in a 2008 Pontiac G6 with a classic complaint: the car felt like it was ‘stuck in mud’ and the check engine light was on. It wouldn’t shift past 3rd gear—a clear sign of limp mode. My scan tool pulled a P0700 (Transmission Control System Malfunction) and a few shift solenoid codes. In my 20+ years of experience, this combination on a GM vehicle almost always points directly to the TCM. The internal electronics fail from heat cycles and vibration, causing communication errors with the solenoids. Instead of a costly transmission rebuild, the fix was simple: a new, VIN-programmed Pontiac G6 Transmission Module. After a 15-minute install, the codes were cleared, and the car shifted perfectly on the test drive. It’s a common failure, but thankfully, it’s an easy one to fix with the right part.
Is Your Pontiac G6 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:
- ✔ Harsh, jerky, 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) are present, such as P0700, P0750-P0758, or other solenoid-related faults.
- ✔ A sudden drop in fuel efficiency.
- ✔ The transmission seems to slip out of gear.
A Straightforward Guide to Installation
One of the best features of this module is its ease of installation, which most DIYers can complete in under 30 minutes with basic hand tools. For the Pontiac G6, the TCM is conveniently located.
- Safety First: Always disconnect the negative terminal from your car’s battery before starting any electrical work.
- Locate the Module: On your Pontiac G6, the TCM is typically found mounted on the driver’s side strut tower in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors. Use a socket wrench to remove the bolts holding the old module in place.
- Install the New Module: Mount the new TCM and tighten the bolts. Reconnect the electrical harnesses, ensuring they click securely into place.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
This T42 Transmission Control Module is a direct-fit replacement for a wide range of General Motors vehicles. While this listing is focused on the Pontiac G6, it is also compatible with the following models. Please verify your part number (24240449 or an interchange) for a perfect match.
Fits Models Including:
- Pontiac G6 (2006-2010) – Transmission; (LH strut tower)
- Chevrolet Cobalt (2006-2010) – Transmission; (LH strut tower)
- Chevrolet HHR (2006-2011) – Transmission; (LH engine compartment)
- Chevrolet Impala (2006-2011) – Transmission; (lower air cleaner housing)
- Chevrolet Malibu (2006-2010) – Transmission; (LH frame rail)
- Saturn Aura (2007-2009) – Transmission; (LH frame rail front)
- Saturn Ion (2006-2007) – Transmission; (behind LH strut tower)
- Saturn Vue (2007-2010) – Transmission; (LH front engine compartment)
- And many other GM cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
Does this module really not need to be programmed by a dealer?
That’s correct. We handle all the programming here before shipping. We use your vehicle’s VIN to load the latest GM software, so it’s ready to install right out of the box. This saves you the time, hassle, and expense of a dealership visit.
Is this part difficult to install myself?
Not at all. For a Pontiac G6, this is a very DIY-friendly repair. The module is easily accessible in the engine bay on the driver’s side strut tower. With basic hand tools, most people can swap it in about 15-30 minutes.
What is a core charge? Do I need to send my old part back?
There is no core charge for this part. You can keep your old module or dispose of it without any obligation to send it back to us, making the process simpler for you.
Will this fix a P0700 trouble code?
Yes, in many cases it will. A P0700 code is a general fault code indicating the TCM has detected a problem. Often, the problem is the TCM itself. Replacing a faulty module with our pre-programmed unit is a very common and effective fix for this code and related transmission solenoid codes.
What if I have other questions about this part?
Our team of automotive experts is here to help. If you’re unsure if this is the right part for your vehicle or have questions about your diagnosis, please contact us. We’re dedicated to helping you get the right fix the first time.