Restore Smooth Shifting to Your Saturn ION
If your 2006-2007 Saturn ION is suffering from erratic shifting, getting stuck in gear, or throwing transmission-related trouble codes, the cause is very often a failing Transmission Control Module (TCM). As a seasoned technician, I’ve seen countless drivers chase expensive and unnecessary repairs when the brain of the transmission was the root problem all along. This T42 series TCM, part number 24252114, is the definitive, reliable solution to restore your vehicle’s drivability and performance. It arrives pre-programmed to your specific Vehicle Identification Number (VIN), making it a true plug-and-play fix that eliminates the need for a costly trip to the dealership.
Is Your Saturn Exhibiting These Transmission Faults?
A failing TCM can manifest in several frustrating ways. Before you consider a full transmission rebuild, check if you’re experiencing any of these common symptoms. A new module is often the most direct and cost-effective repair.
- ✔ Harsh, jerky, or delayed gear shifts.
- ✔ Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as the general P0700 code or specific solenoid codes (e.g., P0750, P0753, P0758).
- ✔ The transmission refuses to upshift or downshift correctly.
- ✔ A noticeable decrease in fuel economy.
A Technician’s Notebook: The Misleading Solenoid Code
I remember a 2007 Saturn ION that came into my shop with a P0753 (Shift Solenoid ‘A’ Electrical) code. The owner had already replaced the solenoid inside the transmission pan—a messy, time-consuming job—but the problem persisted. The car would shift hard from 1st to 2nd and sometimes get stuck. After a quick data stream check, I saw the TCM was commanding the shift, but the feedback was erratic. It wasn’t the solenoid; the driver circuit inside the original TCM was failing. We installed a VIN-programmed module, cleared the codes, and the car shifted perfectly. This is a classic scenario where this 2006-2007 ION TCM saves hours of diagnostic time and prevents replacing perfectly good parts.
Your Straightforward Installation Guide
One of the best features of this module is its accessibility. For the Saturn ION, the installation is a simple DIY job that can be done in your driveway in under 30 minutes with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system.
- Locate the TCM: On your 2006-2007 Saturn ION, the Transmission Control Module is located in the engine bay, conveniently positioned behind the driver’s side (LH) strut tower.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. 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. Ensure they click into place.
- Final Steps: Reconnect the battery terminal. Start the vehicle and use a standard OBD2 scan tool to clear any stored fault codes from the initial failure. Your ION is now ready for a test drive.
Why Choose Our Pre-Programmed TCM?
This isn’t just a replacement part; it’s a complete solution. By programming the module to your VIN before shipping, we ensure it has the latest GM software and is perfectly calibrated for your vehicle’s specific transmission and options. This process restores OEM-level functionality, improves fuel efficiency by ensuring precise shift points, and provides a long-term fix for common transmission issues associated with the T42 module. Backed by a one-year warranty, you can install it with confidence.
Verified Vehicle Compatibility
This T42 TCM is a direct fit for a wide range of General Motors vehicles. While this page is focused on the 2006-2007 ION TCM, it is also compatible with the following models. Please verify your specific model and location notes.
- Saturn ION: 2006-2007 (behind LH strut tower)
- Chevrolet Cobalt / Pontiac G5 / Pursuit: 2006-2010 (LH strut tower)
- Chevrolet HHR: 2006-2011 (LH engine compartment)
- Chevrolet Impala / Monte Carlo: 2006-2011 (lower air cleaner housing)
- Chevrolet Silverado / GMC Sierra 1500: 2007-2013 (next to battery)
- Chevrolet Tahoe / GMC Yukon: 2007-2009 (next to battery)
- And many more GM trucks, vans, and sedans.
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means the module arrives ready for installation right out of the box. We load your car’s specific VIN onto the module, so it communicates perfectly with your engine computer and other systems without needing any additional programming from a mechanic or dealership.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, replacing a faulty TCM will resolve the issue that caused the P0700 code and other related transmission codes.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep or dispose of your old module, making the process faster and more convenient for you.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for numerous GM part numbers, including 24234503, 24230461, 24242391, and others listed in the product details. It functions as a reliable interchange part.