Is Your Pontiac G5 Shifting Erratically or Stuck in Gear?
If you’re dealing with a 2007-2010 Pontiac G5 that refuses to shift correctly, slams into gear, or has the check engine light on with transmission codes, you’re not alone. Over my 20 years in the shop, I’ve seen countless GM vehicles with these exact issues, and the culprit is almost always a failing Transmission Control Module (TCM). This module is the brain of your automatic transmission, and when it starts to go, it can make your car feel unpredictable and unsafe to drive.
A customer’s 2008 G5 came in last week with these exact symptoms. It was stuck in 3rd gear (limp mode), and the scanner was full of solenoid circuit codes (P0750-series). The owner had already replaced a shift solenoid with no change. The real problem was the TCM itself, which was no longer sending the right signals. A faulty module can mimic a bad solenoid, leading to wasted time and money on incorrect repairs. This is a classic diagnostic trap for these T42 modules.
The Direct-Fit Solution: A Pre-Programmed 2007-2010 G5 TCM
Forget the hassle and expense of a dealership visit. This OEM-quality T42 Transmission Control Module is the definitive solution for your vehicle. We take the guesswork out of the repair by pre-programming it to your car’s specific Vehicle Identification Number (VIN) before it ships. This ensures it communicates perfectly with your car’s engine computer and other systems right out of the box, restoring the smooth, reliable performance you expect.
- โ Eliminate Shifting Problems: Cures common symptoms like harsh 1-2 shifts, delayed engagement, slipping between gears, and failure to upshift or downshift.
- โ Fix Check Engine Lights: Resolves persistent Diagnostic Trouble Codes (DTCs) such as P0700 (Transmission Control System Malfunction) and various solenoid codes.
- โ VIN Programmed for You: Arrives ready for installation with the latest GM software updates for your specific G5. No expensive dealer tools or programming required.
- โ Built for Reliability: Engineered to meet or exceed original equipment standards for long-lasting performance and durability. Backed by our solid one-year warranty.
- โ No Core Charge: Keep your old part. There’s no need to worry about the cost or hassle of sending a core back to us.
Plug-and-Play Installation: Get Back on the Road in Under 30 Minutes
Replacing the TCM on your Pontiac G5 is a straightforward job that you can do with basic hand tools. The module is easy to access, making this a perfect DIY repair.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the Module: On the 2007-2010 Pontiac G5, the TCM is located on the driver’s side of the engine bay, mounted to the strut tower.
- Disconnect and Remove: Carefully unplug the electrical connectors. Use a small screwdriver to release the locking tabs if necessary. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses. You’ll hear a click as they lock in.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. While not always required, using a basic scan tool to clear any stored fault codes is a good final step.
This module, part number 24235753, is also a direct replacement for a wide range of other service numbers, including 24242391, 24234503, 24252114, and more, ensuring broad compatibility across the GM lineup. Don’t let a faulty TCM keep your G5 off the road. Order today for a reliable, permanent fix.