Is Your Saturn Ion Shifting Erratically?
If you’re dealing with harsh shifting, delayed gear engagement, or a check engine light in your 2006-2007 Saturn Ion, a failing Transmission Control Module (TCM) is the most likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change and ensuring smooth, efficient operation. When it begins to fail, it can cause a cascade of frustrating and potentially damaging issues, from poor fuel economy to being stuck in ‘limp mode’.
The Direct Solution for Your Transmission Problems
This OEM-quality T42 Transmission Control Module, part number 24255280, is the definitive solution to restore your vehicle’s performance. Unlike generic modules that require expensive trips to the dealership for programming, this unit comes expertly pre-programmed to your vehicle’s specific VIN. This means it’s ready for a true plug-and-play installation right out of the box. Simply provide your VIN at checkout, and we handle the rest, ensuring perfect communication between the module and your vehicle’s systems from the moment you install it.
From the Diagnostic Bay
We had a 2007 Saturn Ion come into the shop that was stuck in third gear. The owner had already replaced two shift solenoids based on a generic code reader, but the problem persisted. A quick scan with our professional tool pointed to an internal TCM communication error (DTC P0700). Instead of guessing further, we installed one of our VIN-programmed T42 modules. After a 20-minute installation and clearing the codes, the car shifted perfectly through all gears on the test drive. The customer saved hundreds by avoiding a dealership visit and unnecessary part replacements.
Common Symptoms of a Failing Saturn ION TCM
A faulty TCM can manifest in various ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- âś” Harsh or slamming shifts between gears.
- âś” The vehicle gets stuck in a single gear (limp mode).
- âś” Delayed engagement when shifting from Park to Drive or Reverse.
- âś” Check Engine Light or Transmission Warning Light is illuminated.
- âś” Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- âś” Inconsistent upshifting or downshifting.
- âś” A noticeable decrease in fuel efficiency.
Why Choose Our VIN-Programmed TCM?
This isn’t just a replacement part; it’s a comprehensive repair solution. By programming the module with the latest GM software updates tied to your VIN, we ensure optimal shift patterns, torque converter lockup strategy, and fuel economy. This process corrects common factory software issues and provides a level of precision that a generic, non-programmed module simply cannot match. Built to stringent OEM specifications, this module guarantees reliable performance and durability, backed by a one-year warranty.
Wide-Ranging GM Compatibility
While this is the perfect fit for your 2006-2007 Saturn Ion, the T42 TCM is also compatible with a vast range of other GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with numerous part numbers, including 24242391, 24234503, 24252114, and more, making it a versatile solution for models like the Chevrolet Cobalt, HHR, GMC Canyon, Pontiac G6, and many others.
Frequently Asked Questions
Do I need to take this module to a dealer for programming?
No. This module is fully pre-programmed to your vehicle’s VIN before it ships. It is a plug-and-play solution that does not require any additional programming or dealership visits, saving you time and money.
Where is the TCM located on my 2006-2007 Saturn Ion?
On the Saturn Ion, the Transmission Control Module is typically located in the engine compartment, behind the driver’s side (LH) strut tower. Always disconnect the battery before beginning the removal and installation process.
Will this fix my specific transmission error code?
This module is designed to resolve issues directly caused by a faulty TCM, which includes a wide range of codes like P0700 (Transmission Control System Malfunction) and various solenoid circuit codes. If the code is due to a failing module, this part will correct it.
Is this a new or used part?
This is a high-quality, OEM-standard component that has been thoroughly inspected and prepared to meet or exceed original factory performance specifications. It is backed by our comprehensive warranty for your peace of mind.
What is the installation process like?
Installation is straightforward for a DIYer with basic tools. Disconnect the battery, locate the old TCM behind the LH strut tower, unplug the electrical connectors, unbolt the module, and then install the new one in reverse order. Reconnect the battery, and you’re ready to go. We recommend clearing any old codes with a scan tool after installation.