Is Your Pontiac G5 Shifting Erratically?
If you’re behind the wheel of your 2007-2010 Pontiac G5 and experiencing sudden, harsh shifts, a delay when you put it in drive, or the dreaded check engine light accompanied by the car being stuck in one gear, you’re not alone. Over my 20+ years in the shop, I’ve seen these exact issues countless times. The problem often points directly to a failing Transmission Control Module (TCM), the electronic brain that manages your automatic transmission’s every move.
“A customer’s 2008 Pontiac G5 came in last week with these exact symptoms. The car would barely move, stuck in what felt like second gear. The owner was worried he needed a whole new transmission. After a quick scan showed a P0750-range solenoid code, we confirmed the driver circuit in the original TCM had failed. Installing this pre-programmed module had him back on the road in under an hour with smooth, crisp shiftsโno expensive transmission rebuild needed.”
The Permanent Fix for Common Transmission Problems
This T42 Transmission Control Module is the definitive solution for restoring your vehicle’s performance. It’s not just a replacement part; it’s a complete, ready-to-install fix that arrives pre-programmed to your vehicle’s specific VIN. This means you can skip the expensive trip to the dealership for programming. It’s designed to directly address the root causes of many transmission headaches.
- โ Erratic and Harsh Shifting: Eliminates the jarring and unpredictable gear changes caused by a faulty module.
- โ Limp Mode / Failsafe: Gets your car out of being stuck in a single gear (usually 2nd or 3rd) and restores full functionality.
- โ Check Engine & Transmission Lights: Clears persistent diagnostic trouble codes (DTCs) like P0700, P0750, and other solenoid-related faults once installed.
- โ Delayed Engagement: Solves the long pause you feel when shifting from Park to Drive or Reverse.
- โ Poor Fuel Economy: Restores proper shift points and torque converter lockup, which can significantly improve your MPG.
Installing Your 2007-2010 G5 Transmission Module
One of the best parts of this solution is the straightforward installation. For your Pontiac G5, the TCM is conveniently located on the driver’s side (LH) strut tower in the engine bay. You don’t need a vehicle lift or specialized toolsโjust basic hand tools and about 30 minutes.
- Safety First: Always disconnect the negative terminal on your car’s battery before starting any electrical work. This prevents shorts and helps reset the vehicle’s computer systems.
- Locate the Module: Open the hood and find the TCM mounted to the driver’s side strut tower. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the wiring harness connectors. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed module into place and securely reconnect the wiring harnesses. You should hear a ‘click’ as they lock in.
- Reconnect and Verify: Reconnect the battery terminal. Start the car and let it idle for a moment. Test drive to confirm that shifting is smooth and warning lights are off.
Expert Pro Tip: Inspect Your Connectors
Before you plug in the new module, take 30 seconds to inspect the vehicle’s harness connectors. Look for any signs of green or white corrosion on the pins. Over time, moisture can get in and cause a poor connection, mimicking the symptoms of a bad TCM. I’ve saved customers hundreds of dollars by simply cleaning these contacts with a small brush and electrical contact cleaner before replacing any parts. A clean connection ensures your new 2007-2010 G5 Transmission Module works perfectly from the start.
Why Choose Our VIN-Programmed TCM?
- โ Plug-and-Play Ready: We program the module to your car’s VIN using the latest GM software updates. It’s ready to install right out of the box.
- โ OEM-Standard Quality: Built to meet or exceed original equipment specifications for a reliable, long-lasting repair. Backed by a one-year warranty.
- โ Broad Compatibility: This part, number 24235340, is interchangeable with many other service numbers, including 24252114, 24234503, and 24242391, fitting a wide range of GM vehicles.
- 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.