Restore Your G5’s Shifting Performance
Are you experiencing frustrating and unpredictable shifting in your 2007-2010 Pontiac G5? A faulty Transmission Control Module (TCM) is often the culprit behind issues like harsh gear changes, getting stuck in limp mode, or seeing a check engine light with transmission-related codes. This genuine GM T42 Transmission Control Module, part number 24256960, is the definitive solution to restore your vehicle’s transmission to its original, smooth-operating condition.
As the electronic brain of your automatic transmission, the TCM is responsible for managing every aspect of shifting, from fluid pressure and solenoid activation to torque converter lockup. When it begins to fail, communication between the engine and transmission breaks down, leading to a poor driving experience and potential long-term damage. Our module arrives pre-programmed to your vehicle’s specific VIN, ensuring a seamless, plug-and-play installation without requiring an expensive trip to the dealership for coding.
From the Diagnostic Bay
We once had a 2008 Pontiac G5 come into the shop with classic symptoms of a failing transmission—erratic 1-2 shifts and a persistent P0700 code. The owner had already spent money replacing two shift solenoids with no improvement. A quick data stream analysis showed the TCM was sending faulty commands. After installing one of our VIN-programmed modules, the car shifted like new. It’s a powerful reminder that the controlling component is often the root cause, not just the mechanical parts it manages.
Diagnosing a Faulty Pontiac G5 Transmission Module
If your vehicle is suffering from transmission woes, it’s critical to identify the source correctly. A failing TCM will present several distinct symptoms that can help you pinpoint the issue. Look out for the following warning signs:
- ✔ Erratic Shifting: Abrupt, harsh, or delayed gear engagement during acceleration or deceleration.
- ✔ Stuck in Gear: The transmission may refuse to shift out of a certain gear, often referred to as “limp mode,” to prevent further damage.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light will illuminate on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): Common codes associated with a bad TCM include P0700 (Transmission Control System Malfunction) and various solenoid-specific codes (e.g., P0750, P0753).
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation can lead to a noticeable decrease in gas mileage.
- ✔ Complete Communication Loss: In severe cases, the vehicle may not start or the gear selector indicator on the dash may be blank or incorrect.
The VIN-Programmed Advantage
This isn’t just a replacement part; it’s a complete solution. We program the module with the latest GM software updates using your vehicle’s unique VIN. This critical step ensures that the TCM communicates perfectly with your G5’s engine computer and other systems, delivering optimal shift strategies, fuel efficiency, and long-term reliability right out of the box. Simply provide your VIN at checkout, and we handle the rest.
Built to strict OEM standards, this module guarantees the durability and performance you expect. It is a direct replacement for a wide range of service numbers, including 24252114, 24234503, 24230461, and more, making it a versatile and dependable choice for your repair.
Frequently Asked Questions
What is VIN programming and why is it essential?
VIN programming loads your vehicle’s specific software and calibrations onto the module. This ensures it works seamlessly with your car’s engine, ABS, and other systems. Without it, the module won’t function correctly, leading to continued shifting problems or even a no-start condition.
Can I install this module myself?
Yes, installation is straightforward for those with basic mechanical skills. On the 2007-2010 Pontiac G5, the TCM is typically located on the driver’s side strut tower. The process involves disconnecting the battery, unplugging the old module’s electrical connectors, swapping the units, and reconnecting everything. It usually takes less than 30 minutes.
Will this fix my specific error code, like P0700?
This module is designed to resolve issues that cause codes like P0700, which indicates a general transmission fault requested by the TCM. If the TCM itself is the source of the fault (which is very common), this replacement part will solve the problem and allow the code to be cleared.
Is there a core charge for my old part?
No, we do not require you to send back your old module. There is no core charge, which simplifies the process and saves you the hassle and cost of return shipping.
How do I ensure this is the right part for my vehicle?
This module is guaranteed to fit 2007-2010 Pontiac G5 models. It also interchanges with multiple part numbers listed in the description. By providing your VIN during checkout, we perform a final verification to ensure 100% compatibility before programming and shipping.