Restore Flawless Shifting to Your Pontiac G6
Is your 2006-2010 Pontiac G6 suffering from jerky shifts, delayed gear engagement, or a frustrating check engine light? You’re not alone. The Transmission Control Module (TCM) is the electronic brain of your automatic transmission, and when it fails, it can cause a host of drivability issues. This direct-replacement T42 TCM, part number 24239224, is the definitive solution. We pre-program it to your vehicle’s specific VIN, ensuring it works perfectly right out of the box—no expensive trip to the dealership required. Get your car driving like new again with a reliable, easy-to-install part designed to last.
Case Study: A Tricky Diagnosis
A customer brought in a 2008 G6 with the classic symptoms: it would randomly slam into gear and was stuck in limp mode. Their scan tool showed a generic P0700 transmission fault code. After checking the basics like fluid level and connectors, we suspected the TCM. In my 20+ years of experience, I’ve seen hundreds of these T42 modules fail due to heat and vibration, causing intermittent electrical faults that are a nightmare to diagnose. Instead of hours of chasing wires, we installed one of our VIN-programmed modules. The customer was back on the road in under an hour with smooth, predictable shifting, saving them a fortune compared to a dealership diagnosis and repair.
Is Your G6 Showing These Telltale Signs?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s a strong indicator that your 2006-2010 Pontiac G6 TCM needs replacement:
- âś” Abrupt, harsh, or erratic gear changes.
- âś” The vehicle is stuck in a single gear (limp mode).
- âś” Transmission or Check Engine warning lights are illuminated on the dash.
- âś” Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related faults.
- âś” A noticeable decrease in fuel economy.
- âś” Failure to shift up or down, or delayed engagement from Park to Drive.
A Straightforward Guide to Installation
One of the best features of this module is its simple installation. You don’t need to be a master mechanic to get the job done. For the Pontiac G6, the TCM is conveniently located, making for a quick swap.
- Safety First: Always disconnect the negative terminal on your car’s battery before starting any electrical work.
- Locate the Module: On the 2006-2010 G6, the TCM is found at the driver’s side (LH) strut tower in the engine bay. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the wiring harnesses. They have locking tabs that need to be released. Then, unbolt the old module from its bracket.
- Install the New TCM: Bolt the new, VIN-programmed module into place. Securely reconnect the wiring harnesses, ensuring they click into place.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s good practice to use a basic scan tool to clear any stored fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
This T42 Transmission Control Module is a direct fit for the 2006-2010 Pontiac G6. It also fits a wide range of other General Motors vehicles, making it a versatile and reliable solution. It is a direct replacement for part numbers including 24252114, 24234503, 24230461, 24239224, 24256960, and more.
- Pontiac: G6 (06-10), G5 (07-10), Grand Prix (06-08), Pursuit (06), Montana (06-09)
- Chevrolet: Cobalt (06-10), HHR (06-11), Impala (06-11), Malibu (06-10), Monte Carlo (06-07)
- Saturn: Aura (07-09), Ion (06-07), Vue (07-10)
- Buick: Allure (06-09), LaCrosse (06-09), Lucerne (06-11), Rendezvous (06-07)
- …and many other GM trucks, vans, and SUVs. Please verify your specific model in the fitment chart.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. The main benefit of our service is that we pre-program the module to your vehicle’s VIN before shipping. This makes it a true plug-and-play part, saving you the time and expense of a dealership visit.
What if I install it and still have shifting problems?
While this module fixes the most common cause of these symptoms, transmission issues can sometimes be mechanical. If problems persist, we recommend having a professional mechanic check the transmission fluid, solenoids, and internal components to rule out other issues.
Is there a core charge for my old part?
No, we do not require you to send your old module back. There is no core charge, which simplifies the process for you.
How difficult is the installation for a DIYer?
For a Pontiac G6, this is a very straightforward DIY job. The module is easily accessible at the LH strut tower. With basic hand tools, most people can complete the replacement in under 30 minutes.