Restore Peak Performance to Your Pontiac G5’s Transmission
Is your 2007-2010 Pontiac G5 suffering from harsh shifting, getting stuck in gear, or displaying a check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for managing gear changes, fluid pressure, and overall performance. When it fails, it can mimic the symptoms of a major mechanical transmission failure, leading to drivability issues and costly diagnostic headaches.
From the Diagnostic Bay
We recently had a 2008 Pontiac G5 come into the shop with a P0700 code and the transmission stuck in 3rd gear (limp mode). The owner was convinced they needed a full transmission rebuild, which would have cost thousands. After a quick scan, we identified faulty solenoid circuit readings originating from the TCM. Instead of a costly mechanical repair, we installed a VIN-programmed T42 module. The car was shifting perfectly within the hour, saving the customer a significant amount of time and money. Never underestimate the importance of proper electronic diagnostics before condemning a transmission.
Common Symptoms of a Failing Pontiac G5 TCM
- ✔ Harsh, erratic, or delayed gear shifting.
- ✔ Vehicle stuck in a single gear (limp mode).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes are present.
- ✔ Inability to upshift or downshift correctly.
- ✔ Decreased fuel economy and potential for transmission overheating.
- ✔ Complete loss of communication with the transmission module.
Why Choose Our Programmed 2007-2010 Pontiac G5 TCM?
This genuine OEM-quality T42 Transmission Control Module is the definitive solution for your vehicle. Unlike generic modules that require expensive trips to the dealership for programming, our unit arrives at your door pre-programmed to your vehicle’s specific VIN. This ensures 100% plug-and-play compatibility right out of the box. We load the latest GM software updates, which can resolve many common factory issues and improve transmission logic for smoother, more reliable operation. By installing this module, you are not just replacing a faulty part; you are restoring the precise, factory-intended performance of your vehicle’s drivetrain.
This module is a direct replacement for a wide range of service numbers, including 24242391, 24234503, and 24252114, and fits an extensive list of GM vehicles beyond the Pontiac G5, such as the Chevrolet Cobalt, HHR, Impala, GMC Sierra, and many more equipped with 4-speed automatic transmissions like the 4L60E and 4L65E.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM acts as the central computer for your automatic transmission. It receives data from various sensors on the engine and transmission to control shift points, torque converter lockup, and line pressure, ensuring smooth and efficient operation.
Is this part difficult to install on my Pontiac G5?
Installation is straightforward for a DIY mechanic with basic tools. On the 2007-2010 G5, the TCM is typically located on the driver’s side strut tower in the engine compartment. The process usually takes less than 30 minutes. Simply disconnect the battery, unplug the old module’s electrical connectors, unbolt it, and install the new one.
Will I need to visit a dealer for programming after installation?
No. The primary benefit of our service is that this module comes fully programmed to your vehicle’s VIN. This eliminates the need for any additional programming or setup with expensive scan tools. It is a true plug-and-play solution.
How do I ensure this is the correct part for my vehicle?
This module, part number 24243901, is the correct fit for 2007-2010 Pontiac G5 models. It also interchanges with numerous other GM part numbers listed in the description. Simply provide your VIN during checkout to ensure we program it correctly for your specific vehicle.
What happens if I continue driving with a bad TCM?
Driving with a faulty TCM can lead to poor performance, reduced fuel efficiency, and unpredictable shifting, which can be a safety hazard. In some cases, it can cause excessive wear and permanent damage to the mechanical components of your transmission, leading to much more expensive repairs.