Restore Your Pontiac’s Shifting with a Pre-Programmed TCM
If you’re dealing with the frustration of a Pontiac G6 that shifts harshly, gets stuck in gear, or has thrown a check engine light, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing Transmission Control Module (TCM) can bring a perfectly good car to a standstill. The GM T42 module is the electronic brain of your automatic transmission, and when it fails, the symptoms can be alarming. This isn’t just an inconvenience; it’s a critical component for your vehicle’s performance and safety.
We offer a direct-fit solution: a high-quality T42 Transmission Control Module, part number 24235732, that arrives at your door fully programmed to your vehicle’s specific VIN. This means you can skip the expensive trip to the dealership for programming. This is the definitive fix for the common issues plaguing these transmissions, restoring the smooth, predictable shifting you expect from your car. By replacing your faulty unit with our reliable 2006-2010 G6 Transmission Module, you’re not just buying a part—you’re buying peace of mind and getting your car back on the road quickly and affordably.
From the Diagnostic Bay: The Case of the Hesitant G6
A customer brought in a 2009 Pontiac G6 with a classic complaint: intermittent, bone-jarring shifts and occasionally getting stuck in 3rd gear (limp mode). He’d already replaced a shift solenoid with no luck. The scanner showed a P0700 (Transmission Control System Malfunction) and an intermittent solenoid circuit code. After 20 years in the business, I know these T42 modules are prone to internal circuit failure from heat and vibration. We confirmed power and ground were good, pointing directly to the TCM. Installing a pre-programmed module like this one solved the problem in under 30 minutes. The customer drove away with a car that shifted like new, saving him hundreds compared to a dealership diagnosis and repair.
Is Your Pontiac Showing These Symptoms?
A failing TCM will give you clear warning signs. If you’re experiencing any of the following, a new 2006-2010 G6 Transmission Module is the most likely solution.
- âś” Harsh, erratic, or delayed gear shifts that slam into place.
- âś” Vehicle is stuck in “limp mode” and will not shift out of 2nd or 3rd gear.
- âś” Check Engine Light or Transmission Warning Light is illuminated on the dash.
- âś” Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, P0753, P0758, or other solenoid-related faults.
- âś” A noticeable drop in fuel economy or the transmission seems to be overheating.
- âś” Complete loss of communication with the transmission module.
A Straightforward Guide to Installation
For the Pontiac G6 and other compatible sedans, this is a job most DIYers can handle in their own driveway. No specialized tools are needed.
- Safety First: Disconnect the negative terminal from your car’s battery to prevent any electrical shorts and to help reset the system.
- Locate the Module: On the 2006-2010 Pontiac G6, the TCM is typically found on the driver’s side of the engine bay, mounted to the strut tower. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. They have locking tabs that need to be released. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed module into place. Securely plug in the electrical connectors until they click, ensuring a solid connection.
- Reconnect and Verify: Reconnect the negative battery terminal. Start the vehicle and allow it to idle for a few minutes. Take it for a test drive to confirm that shifting has returned to normal. Use a basic OBD-II scanner to clear any stored fault codes if they persist.
Verified Vehicle Compatibility
This T42 TCM, including part number 24235732, is a direct replacement for a wide range of General Motors vehicles. Please verify your model and the location notes below.
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 Silverado 1500 (2007-2013): Transmission; (next to battery)
GMC Sierra 1500 (2007-2013): Transmission; (next to battery)
Buick LaCrosse (2006-2009): Transmission; (lower air cleaner housing)
Saturn Aura (2007-2009): Transmission; (LH frame rail front)
…and many other GM models listed in the full compatibility chart.
Do I need to program this 2006-2010 G6 Transmission Module?
Do I need to program this 2006-2010 G6 Transmission Module?
No. This is the biggest benefit of our service. We program the module to your vehicle’s VIN before it ships. It arrives ready for plug-and-play installation, saving you a costly and time-consuming trip to the dealership.
Where is the TCM located on my Pontiac G6?
On most 2006-2010 Pontiac G6 models, the Transmission Control Module is conveniently located in the engine compartment, bolted to the driver’s side (LH) strut tower. It’s easily accessible after opening the hood.
Will this fix a P0700 trouble code?
Yes, in most cases. The P0700 code is a general fault code indicating the TCM has detected a problem. A failing TCM is a very common cause of this code, often accompanied by more specific solenoid or circuit codes. Replacing the module typically resolves these issues.
Is there a core charge for my old part?
No, we do not require a core charge. You can keep your old part or dispose of it at your convenience, making the repair process simpler and more affordable for you.
What if this part doesn’t fix my problem?
While this module resolves the vast majority of common transmission electronic faults, we stand behind our products. This part comes with a one-year warranty. If you have any issues, our expert support team is here to help with diagnostics and ensure you get the right solution.