Restore Smooth, Reliable Shifting to Your Pontiac G5
If your 2007-2010 Pontiac G5 is suffering from erratic 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. Over time, heat and vibrations cause internal components to fail, leading to frustrating and potentially unsafe driving conditions. This T42 series TCM, part number 24240449, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
From the Diagnostic Bay
I’ve seen countless GM vehicles like the Pontiac G5 come into the shop with what owners describe as ‘ghost’ transmission problems. One week it’s a hard 1-2 shift, the next it won’t downshift properly, and the codes are intermittent. In over 90% of these cases, after ruling out fluid issues or bad solenoids, the fault lies within the original T42 TCM. The logic board simply can’t handle a decade of engine bay heat cycles. Replacing it with a quality, pre-programmed unit like this one isn’t just a repair; it’s a permanent fix that brings back the smooth, predictable performance the car had when it was new.
Is Your Pontiac G5 Exhibiting These Shifting Issues?
A failing TCM will give you clear warning signs. If you’re experiencing any of the following, it’s time to replace your module:
- ✔ Harsh, slamming, or delayed gear shifts.
- ✔ Vehicle is stuck in “limp mode” and won’t shift out of 2nd or 3rd gear.
- ✔ The Check Engine Light or Transmission Warning Light is on with codes like P0700, P0750, or other solenoid-related faults.
- ✔ Complete loss of shifting capability, either up or down.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔ Intermittent communication loss with the TCM, causing unpredictable behavior.
Why Choose Our Pre-Programmed 2007-2010 G5 Transmission Module?
This isn’t just a replacement part; it’s a complete solution. The most critical feature is our professional VIN programming service. We flash the module with the latest GM software updates specific to your Pontiac G5 before it ships. This means you can skip the expensive trip to the dealership for programming. You get a part that works correctly right out of the box, restoring factory shift patterns and resolving common electronic faults associated with a failing TCM.
DIY Guide: Installing Your G5 TCM in Under 30 Minutes
This is a straightforward job that most DIY mechanics can handle with basic tools. For the Pontiac G5, the TCM is conveniently located and easy to access.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: On your 2007-2010 G5, the Transmission Control Module is mounted on the driver’s side (LH) strut tower in the engine bay.
- Disconnect Connectors: Carefully unclip the electrical wiring harnesses from the old module. Press the release tabs firmly and pull straight out to avoid damaging the pins.
- Remove the Old Module: Unbolt the old TCM from its mounting bracket. Keep the mounting hardware, as you will need it for the new module.
- Install the New Module: Mount your new, pre-programmed TCM onto the bracket and securely fasten it. Reconnect the wiring harnesses, ensuring they click into place.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and let it idle for a few minutes. If you have a basic scan tool, it’s good practice to clear any stored transmission codes. Test drive the vehicle to confirm smooth shifting has been restored.
Verified Vehicle Compatibility
While this listing is focused on the Pontiac G5, this T42 TCM is compatible with a wide range of General Motors vehicles. Please verify your part number (24240449) or contact us with your VIN. This part fits:
- Pontiac G5 (2007-2010) – Transmission; (LH strut tower)
- Chevrolet Cobalt (2006-2010) – Transmission; (LH strut tower)
- Chevrolet HHR (2006-2011) – Transmission; (LH engine compartment)
- Chevrolet Malibu (2006-2010) – Transmission; (LH frame rail)
- Chevrolet Impala (2006-2011) – Transmission; (lower air cleaner housing)
- GMC & Chevrolet Trucks/SUVs/Vans (2006-2014) – See full list for specific locations.
- Buick, Saturn, and Cadillac models – See full list for specific models and years.
Frequently Asked Questions
Do I need to take my car to the dealer after installing this?
No. This module comes fully programmed to your vehicle’s VIN number. It is a plug-and-play installation, saving you the time and expense of a dealership visit for programming.
Is this part difficult to install on my Pontiac G5?
Not at all. For the G5, the TCM is located on the driver’s side strut tower, making it one of the easier locations to access. With basic hand tools, most people can complete the swap in under 30 minutes.
What is the warranty on this transmission module?
This module is backed by our standard one-year warranty, covering any defects in materials or workmanship for your peace of mind.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the engine computer. While a faulty TCM is a very common cause of this code, you should ensure there are no other underlying issues. In most cases where the TCM is the root cause, this part will resolve the P0700 and related codes.
Is this the same as part number 24252114 or 24234503?
Yes. This module, 24240449, is an interchangeable service replacement for many T42 TCM part numbers, including 24252114, 24234503, and others listed in the product details. It functions identically.