Restore Peak Transmission Performance to Your Pontiac G5
Is your 2007-2010 Pontiac G5 suffering from erratic shifting, getting stuck in gear, or displaying a persistent 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 orchestrating smooth gear changes, managing torque converter lockup, and monitoring system health. When it fails, it can lead to poor performance, decreased fuel economy, and potentially catastrophic transmission damage. This OEM-quality T42 Transmission Control Module, service part number 24240400, is the definitive solution to restore your vehicle’s drivability and reliability.
From the Diagnostic Bay
We had a 2009 Pontiac G5 come into the shop stuck in ‘limp mode’—it wouldn’t shift out of third gear. The owner was frustrated after being told he might need a full transmission rebuild. A quick scan showed a P0700 code and several solenoid circuit faults. Before condemning the transmission, we checked the TCM connectors for corrosion—they were clean. We swapped in one of our VIN-programmed T42 modules, cleared the codes, and took it for a test drive. The car shifted perfectly through all gears. It was a 30-minute fix that saved the customer thousands and got them back on the road safely.
Diagnosing a Faulty Pontiac G5 TCM
A failing TCM can manifest in various ways, often mimicking internal transmission problems. Recognizing the symptoms early can save you from more costly repairs down the road. This replacement module is engineered to resolve these exact issues, providing a dependable and lasting fix.
Common Symptoms of a Failing Transmission Control Module
- âś” Harsh or delayed gear engagement, causing clunking or jerking.
- âś” The vehicle gets stuck in a single gear (limp mode) to protect the transmission.
- âś” Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- âś” Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are stored.
- âś” Inconsistent or complete failure to upshift or downshift.
- âś” Noticeable decrease in fuel efficiency and potential for the transmission to overheat.
The Plug-and-Play Advantage: VIN Programming Included
One of the biggest hurdles in replacing a modern electronic module is the need for expensive dealership programming. We eliminate that step entirely. Before shipping, we program this module with your vehicle’s specific Vehicle Identification Number (VIN) and the latest GM software updates. This ensures that the module communicates flawlessly with your vehicle’s other systems, like the Engine Control Module (ECM), right out of the box. No extra tools, no trips to the dealer—just a straightforward installation for a seamless repair.
This module is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24230461, 24240400, and more, making it a versatile solution for many models from Chevrolet, GMC, Buick, Cadillac, Saturn, and Saab.
Frequently Asked Questions
What does ‘VIN-programmed’ mean for my Pontiac G5?
It means we flash the module with your car’s specific factory software using your VIN. This ensures the TCM works perfectly with your engine and transmission settings for optimal shift points, fuel economy, and performance, eliminating the need for a costly visit to the dealership for programming.
Will this fix transmission error codes like P0700?
Yes, this module is designed to resolve issues that cause codes like P0700 (Transmission Control System Malfunction) and related solenoid codes (e.g., P0751, P0756). If the TCM itself is the source of the electrical fault, replacing it with this pre-programmed unit will clear those codes after installation.
Where is the TCM located on a 2007-2010 Pontiac G5?
On the Pontiac G5, the Transmission Control Module is typically found in the engine compartment, mounted on the driver’s side strut tower for easy access.
Do I need to return my old TCM? Is there a core charge?
No, there is absolutely no core charge for this part. You can keep your old module or dispose of it at your convenience, making the process hassle-free.
Are any special tools required for installation?
Basic hand tools, such as a socket set, are all that’s typically needed. The most important steps are to disconnect the battery before starting and to ensure the electrical connectors are clean and securely fastened to the new module. A scan tool is helpful for clearing any stored codes after the installation is complete.