Is Your Pontiac G5 Shifting Erratically or Stuck in Gear?
If you’re dealing with the frustration of a Pontiac G5 that slams into gear, refuses to shift, or has the check engine light glaring at you, you’re not alone. As a mechanic with over two decades of experience under the hood, I’ve seen countless drivers chase transmission problems, sometimes even considering a costly transmission replacement, when the real culprit is a faulty Transmission Control Module (TCM). The TCM is the brain of your automatic transmission, and when it fails, your car’s performance suffers dramatically.
From the Shop Floor: A Real-World G5 Diagnosis
“A customer’s 2008 G5 came into my shop last week with classic symptoms: it was stuck in 3rd gear (limp mode) and had a P0700 code. They were convinced their transmission was shot. After a quick scan, I suspected the TCM. Before ordering a new one, I checked the main connector at the module for corrosionโa common issue on these cars from moisture getting past the seals. After cleaning the contacts, the problem persisted. This confirmed the internal circuitry of the original TCM had failed, a very common scenario. We installed one of our pre-programmed modules, and the car was shifting perfectly within 30 minutes, saving the customer thousands over a transmission rebuild.”
Your Direct-Fit Solution: The Pre-Programmed T42 TCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution for your vehicle. We take this OEM-quality T42 TCM, compatible with part number 24235732, and program it directly to your car’s unique Vehicle Identification Number (VIN). This critical step ensures that the module communicates flawlessly with your G5’s engine computer and other systems right out of the box, eliminating the need for an expensive trip to the dealership for programming.
Common Symptoms of a Failing 2007-2010 G5 TCM:
- โ Harsh, delayed, or unpredictable gear shifts.
- โ Vehicle is stuck in one gear (often called “limp mode”).
- โ Check Engine Light or Transmission Warning Light is on.
- โ Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults.
- โ A sudden drop in fuel economy.
- โ Complete loss of communication with the transmission.
Plug-and-Play Installation: No Dealer Visit Required
Getting your Pontiac G5 back to smooth operation is a straightforward job you can do in your own driveway. The module is easy to access, and the process requires only basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the onboard systems.
- Locate the TCM: On your 2007-2010 Pontiac G5, the TCM is conveniently located on the driver’s side of the engine bay, mounted to the LH strut tower.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the locking tabs to avoid damage. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, VIN-programmed TCM into place and securely reconnect the electrical harnesses. You should hear a ‘click’ as they lock.
- Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and allow it to idle for a few moments. If you have a basic OBD2 scan tool, it’s good practice to clear any stored fault codes. Take the car for a test drive to confirm the shifting issues are resolved.
Guaranteed Compatibility and Reliability
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers, including 24252114, 24234503, and 24235732. Built to meet or exceed original equipment specifications and backed by our one-year warranty, this part provides a dependable and lasting repair. There is no core charge, so you can keep your old part without any hassle. Order now and restore the precise, smooth performance your vehicle was designed to deliver.