Is Your Pontiac G5 Shifting Erratically?
If you’re dealing with unpredictable shifting, a check engine light, or your 2007-2010 Pontiac G5 going into limp mode, a failing Transmission Control Module (TCM) is the most likely culprit. As the central computer for your automatic transmission, the TCM dictates every gear change. When it begins to fail, it can cause a cascade of problems that make your vehicle unreliable and unsafe to drive. This replacement T42 TCM, part number 24235732, is the definitive solution to restore your transmission’s performance and get you back on the road with confidence.
The Brain of Your Transmission
The TCM in your Pontiac G5 constantly analyzes data from sensors like vehicle speed, engine RPM, and throttle position to execute smooth, efficient gear shifts. It also controls the torque converter clutch and hydraulic line pressure. Over time, heat, vibration, and electrical fluctuations can damage the delicate internal circuits, leading to the frustrating symptoms you’re experiencing. Ignoring these signs can lead to premature wear on your transmission’s mechanical components, resulting in far more expensive repairs down the line.
From the Diagnostic Bay
We once had a 2008 Pontiac G6 (which uses the same T42 module as the G5) come in with what the owner was sure was a completely failed transmission. It was slipping badly and wouldn’t shift past 2nd gear. They were quoted thousands for a new transmission. A quick scan showed multiple solenoid circuit fault codes. Instead of condemning the transmission, we checked the TCM harness and then suggested replacing the module first. The new VIN-programmed TCM fixed everything. The internal circuits of the old module had failed, sending bad signals. A $2000+ repair became a simple, under-30-minute module swap. Always check the electronics before condemning the hard parts!
Symptoms of a Faulty 2007-2010 G5 TCM
- ✔ Harsh, slamming, or delayed gear engagement.
- ✔ Vehicle gets stuck in a single gear (limp mode), often 2nd or 3rd.
- ✔ The check engine light or transmission warning light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are stored, such as P0700, P0750, or other solenoid-related faults.
- ✔ Inability to upshift or downshift properly.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The transmission seems to slip between gears.
Plug-and-Play Solution with VIN Programming
The biggest hurdle when replacing a modern electronic module is the need for expensive, dealer-specific programming. We eliminate that problem entirely. Before this module ships, we program it with your vehicle’s unique Vehicle Identification Number (VIN). This ensures that it arrives with the correct software and calibrations for your specific 2007-2010 Pontiac G5, making it a true plug-and-play installation. You can avoid the high costs and scheduling hassles of a dealership visit.
Built to meet or exceed original equipment standards, this module provides a dependable, long-term fix. It is a direct replacement for a wide range of GM part numbers, including 24252114, 24234503, 24230461, and 24235732, ensuring broad compatibility and reliable performance. Installation is straightforward for a DIY mechanic; on the Pontiac G5, the TCM is conveniently located on the driver’s side strut tower in the engine compartment. Simply disconnect the battery, swap the modules, and you’re ready to go.
Frequently Asked Questions
What does “VIN programmed” mean for my G5?
It means we flash the module with the specific software and calibrations for your vehicle’s exact VIN before shipping. This ensures it communicates perfectly with your car’s engine computer and other systems, just like the original part from the factory.
Do I need to visit a dealer after installing this TCM?
No. Because it’s pre-programmed to your VIN, you can skip the expensive trip to the dealership for programming. It’s a true plug-and-play solution designed to save you time and money.
Where is the TCM located on a 2007-2010 Pontiac G5?
The Transmission Control Module on the Pontiac G5 is typically found in the engine bay, mounted directly to the driver’s side (LH) strut tower, making it easily accessible for replacement.
Will this module fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While a faulty TCM is a very common cause of this code, it’s essential to scan for more specific transmission codes (like P07xx solenoid codes) to confirm the diagnosis. This module often resolves the underlying electronic problems that trigger a P0700.
Is there a core charge for this part?
No, there is no core charge for this module. You can keep your old part without the hassle and expense of sending it back.